Charge ordering is a phenomenon generally observed in mixed-valent transition metal oxides. The perovskite manganites are especially interesting because long-range ordering of the Mn³⁺ and
Mn⁴⁺ ions in these materials is linked to antiferromagnetic spin ordering, the long-range ordering of the Mn³⁺ orbital and the associated lattice distortions. The early experiments and the progress
of current state of charge ordering were overviewed in this article. The abnormal change of the resistivity, magnetization, lattice parameter and ultrasonic velocity and attenuation around the charge ordering
transition with the effects of cation size, chemical substitution, pressure, and magnetic field on the charge ordering were also discussed.

Robocasting is a directed assembly technique, which involves assembly via a layer-by-layer
deposition of colloidal inks. So it offers a powerful alternative for producing complex 3D structures, including space-filling solids and
structures with high aspect ratio walls or spanning (unsupported) elements. Recent advances of this technique were reviewed with an
emphasis on the rheology theory bases and developments of aqueous colloidal gel-based inks. This approach opens up a novel avenue for
engineering complex 3D structures, which may be relevant for a broad range of technological applications.

The research situation of oxide, sulfide, oxysulfide glass and glass ceramic solid electrolytes for lithium ion batteries, their electrochemical performance and their applications
were reviewed. The influences of crystal structure and morphology on the overall properties were discussed. In addition, the prospect of glass and glass-ceramic materials for solid
lithium-ion batteries was also outlined.

With the development of thin film fabrication processes, there are many ferroelectrics thin films applied in MEMS. The fabrication of MEMS devices using ferroelectrics thin films
depends upon the ability to pattern the films. The useful properties of ferroelectrics thin films, especially PZT thin films, were introduced,
and some examples about the MEMS based on the ferroelectrics thin films were discussed.

Mg-Ni based alloy has always been paid much attention as important negative electrode materials for Ni/MH battery. Recent research progress in Mg-Ni based alloy by mechanical
alloying for Ni/MH battery hydride electrode materials was reviewed with its focus on the electrochemical performance, micro-structural
characteristics, mechanism of hydriding and dehydriding and the main methods in preparation and modification of Mg-Ni based alloy electrodes such as
Mg-Ni based binary alloys, ternary alloys, composite alloying and surface modifications. Also the main direction of studies on Mg-Ni based alloy by
mechanical alloying for Ni/MH battery negative electrode materials was proposed.

Rigorous modeling of heat and mass transfer in multicomponent (solidification) fluid for realistic boundary conditions is typically unwieldy. Hence, the motivation for simplification
is great. In this presentation, based on the generally valid transport equations and the appropriate dimensionless groups of fluid properties,
we point out (a)physically justifiable applications of mass diffusional transfer models for solidified fluid, and (b)the diffusion-induced bulk
flow denoted as micro-convection, which flows around the solid-liquid interface inside the width δ_c of interfacial liquid zone of significant
concentration changes. Our laboratory practice for oxide crystal growth has given valuable evidence for these considerations. Since the emphasis
is on the express of concept, we limit the discussion mostly to two-dimensional models in a binary system.

aman spectra of GeS₂-Ga₂S₃-CsCl pseudo-ternary glasses at room temperature in the air were probed
systematically in the 150～500cm^-1 region. Based on the evolution of Raman spectra and preparing procedure in pseudo-binary systems GeS₂-CsCl
and Ga₂S₃-CsCl, the sole interaction of Ga₂S₃ and CsCl was identified and the formation of new units GaS_3/2Cl was verified in
GeS₂-Ga₂S₃-CsCl glasses. That Cs+ ions in the form of Cl as the nearest coordination are homogeneously dispersed in the polymeric
network was confirmed by the Raman spectra evolution of samples on two serials. Raman spectral evolution of two composition serials can be successfully
interpreted by using a localized model considering the effect of Cs⁺ ions on the structural units GaS_3/2Cl and Ga₂S₄Cl₂.

The phase separation and crystallization of fluoride glass 8.7MgF₂-17.4CaF₂-8.7SrF₂-13.3BaF₂-13.0YF₃-31.6AlF₃-7.3ZrF₄ in mole percent were studied. The investigation indicates that the phase
separation occurs obviously when AlF3 and ZrF₄ coexist in glass, the glass is more sensitive to water at high temperature and the surface
crystallization often occurs. The crystallization in glass mainly occurs in Al-rich phase, and the crystallization on the surface of glass mostly
comes from Zr-rich phase because of the water in atmosphere. According to the performance of glass phase separation and crystallization, the surface
crystallization mechanism of fluoride glass containing AlF3 and ZrF₄ was discussed.

By using the anode oxidation method, porous alumina anode oxidation templates (AAo) with a pore diameter of 30～50nm were
prepared, and metal tin nanowires electrodeposited in the pores of AAO, then the AAO with tin nanowires annealed in muffle in air at 750℃
for 10h, and SnO₂ nanowires formed. The effects of electrodeposition conditions, such as frequency, voltage, on the filling ratio of tin were also studied. SEM, TEM, XRD results show
that these polycrystalline SnO₂ nanowires have a diameter of 30～50nm, voltage and frequency are the key factors affecting the electrodeposition results.

Vanadium oxide nanotubes were prepared by hydrothermal self-assembling process from vanadium pentoxide
and organic molecules as structure-directing templates. The forming mechanism of vanadium oxide nanotubes was studied by XRD, SEM, TEM, FTIR, ESR. The
results show that the formation of the vanadium oxide nanotubes is based on the “rolling mechanism”, which can be divided into three main steps:
(1) The surfactant molecules intercalate into the interlayer of vanadium oxide, resulting in a new layered compound precursor. (2) These lamellar sheets
become loose at the edges and then start to rolle themselves. (3) Vanadium oxide nanotubes are finally formed. The results also confirm that the
certain interlayer distance resulting from the intercalation of template moleculae and the presence of vanadium (IV) play important roles in the
formation of curved interface during preparing vanadium oxide nanotubes.

Magnesium and molybdenum oxide prepared by a sol-gel method was used to synthesize high quality multi-walled carbon nanotubes bundles by catalytic decomposition CH₄. The experiment reveals
that the prepared catalysts have high activity and high efficiency. After reacting for 2h, the quantity of synthesized MWNTs is over 30 times of the pristine
catalysts. Transmission electron microscopy, high-resolution transmission electron microscopy, thermal gravimetric analysis and laser Raman spectroscopy
were used to characterize the synthesized MWNTs bundles. The results show that the synthesized MWNTs bundles have a diameter distribution about
10～22nm. The longer the reaction time, the graphitization degree of the synthesized MWNTs bundles. After reacting for 1h, the MWNTs bundles
with a high purity of more than 95% can be obtained. The forming multilayers Mo particles on the surface of MgO support are the main cause of the nanotubes
bundles growth.

Based on the biological compatibility of gelatin in water and its solidification by glutaradehyde, the magnetic norfloxacin gelatin core-shell microspheres were prepared by
means of the reverse phase suspension cold-condensation method using Fe₃O₄ as core and glutaric dialdehycle as dispersed medium. The products were
characterized by IR, SEM, TEM, UV/Vis. The results show that the microspheres are spherical in shape with smooth surfaces. The diameter of the microspheres
is in the rang from 5 to 10μm, The content of drug in microspheres is 6.2% and of Fe₃O₄ is 19%. The drug encapsulation efficiency is 61.4%,
the quantity of drug released from microspheres in 5 hours is 74.4%. The microspheres have good properties of drug sustain releasing.

In order to get enough operating time in gelcasting processing, we hope ceramic slurry delay solidification. Idle time commonly is postponed by decreasing slurry temperature and the
amount of initiator and catalyst. In this paper, other ways were studied. The heat evolution of the slurry was measured to characterize the
polymerization process. Results show that increasing ionic strength can delay polymerization reaction. Idle time is shortened when pH of slurry
decreased but mounted up rapidly when pH of slurry is under 1.7. Various inhibitors have different inhibit effect on polymerization under different
temperatures. Composite inhibitor of phenothiazine and catechol can delay solidification of ceramic slurry effectively under 20～60℃.

Four La-containing sulfated Zr-pillared clay solid acids with rectorites as matrix were prepared by utilizing different methods for La introduction and characterized by nitrogen
adsorption/desorption, XRD, NH3-TPD and Py-IR techniques.The effects of different introduction methods for La on the structure and acidity of the
resulting catalysts were investigated. The experimental results show that regularity for the layer structure of formed catalysts is significantly
improved by either exchanging Na-rectorite with LaCl3 solution followed by pillaring with Zr pillaring agent or by utilizing La-Zr bipillaring agent.
In addition, the employment of these two preparation methods leads to a more uniform pore size distribution, a larger specific surface area and an
improvement in the amount and intensity of Lewis acid.

The behaviors of impact resistance and armour pierced-resistance of Si₃N₄/BN laminated ceramics were studied. The study on the impact resistance indicated that the impact resistance ability of Si₃N₄/BN
laminated ceramics was more predominate than that of Si₃N₄ monolith ceramics. The ballistic efficiency factor of the Si₃N₄/BN laminated ceramics was slightly smaller than that of the monolithic
Si₃N₄ ceramics, but it was much higher than that of steel. Compared to the smashing behavior of the monolithic Si₃N₄ ceramics, Si₃N₄/BN laminated ceramics could keep the integrality
to some extent after impacted by bullet. The destructive mechanism of Si₃N₄/BN laminated ceramics impacted by bullet was discussed, which provides theoretical analysis basis for its’ bullet-proof structure designing.

β-TCP/PLLA porous carrier material was prepared by the improved process consisting of solvent casting, compression molding and leaching. A novel tissue engineering composite was
developed by combining β-TCP/PLLA composite with rat periosteum derived osteoblasts. Mechanic properties of the composite carrier were determined
with compressive strength and compressive modular measuring; Osteogenesis characteristics in~ vitro were evaluated by means of SEM examination, MTT
assay, ALP activity and OCN content evaluation; Ectopic osteogenesis was investigated in muscle of nude mice by the histological method. Results show
that β-TCP/PLLA porous structure has adjustable porosity and interconnected pores with 100～200μm in size; Compressive strength
and compressive modulus of the materials decrease sharply with porosity increasing. Mechanic properties of β-TCP/PLLA in low porosity are
superior to those of PLLA alone with the same porosity; β-TCP/PLLA composite is fit for the adhesion and ingrowth of periosteum derived
osteoblasts, and has no cytotoxicity; β-TCP/PLLA composite combined with periosteum derived osteoblasts possesses good osteogenesis
potential in vitro and ectopic osteogenesis capacity in vivo.

In order to resolve the biological sealing of the percutaneous devices for a long time, porous titanium with three-dimensioned scaffold and suitable surface micropores were chosen for
fixation the subcutaneous soft tissues. Bone-like apatite was firstly precipitated on the surface of the porous Ti in vitro, and the bare surface
as control. All of the samples were implanted into the back of the rabbits subcutaneously. At 40 days and 70 days postoperation, the samples with the
surrounding soft tissues were harvested and experienced biomechanical tensile testing. After that, the tensile testing sections were observed by SEM-EDX
to analyze the situations of the tissues contacted with the different surface of the materials. The results demonstrate that all of tensile strength
of the bone-like apatite coated porous titanium is bigger than that of the control group, and the bonding state at the interface of the materials/tissue
is firmer than that of the control. When the samples implanted in~ vivo, the bone-like apatite coating precipitated in advance in~ vitro is efficient to the formation of the active cell/materials
interface, which is beneficial for the ingrowth of the fibrous tissue and formation of the tight bonding between the tissues and materials.

A new route was developed for preparation of nonreducible BCTZ ceramics.In this route, complex oxide dopants were obtained by sol-gel process ~via~ heat treatment at 500～
800℃, and then mixed and milled with (Ba_1-xCa_x)(Ti_1-yZr_y)O₃ powders to get nonreducible BCTZ ceramic powders, which could be fired
under reducing atmospheres to get base metal compatible ceramics with high permittivity and low dielectric loss. The influence of synthesizing
temperature of the mixed dopants, sintering temperature and annealing time on the microstructure and dielectrical properties of the BCTZ ceramics was studied. The
nanosized complex oxide dopants(nanosized dopants) synthesized at low temperature were confirmed to be suitable for the modification of the
ultrafine ceramic powders. With the increase of the synthesizing temperature of the complex oxide dopants at 500～800℃, the Curie
point, dielectric loss and dielectric maximum K_MAX of the BCTZ ceramics decreased. Studies on the firing process confirmed that nonreducible BCTZ ceramics
satisfying the Y5V specification could be prepared via this route. The ceramics had relative dielectric permittivity higher than 18000,
dissipation factor below 0.7%, resistivity as high as 10¹²Ω·cm, Curie point in the range of 5～20℃, and the average grain
size less than 4μm. This route can be hopeful to be adopted in the production of Y5V Ni-MLCC with large capacitance.

Microwave properties and crystal structures of [(Pb_0.48Ca_0.52)_1-xNd_x](Fe_0.5Nb_0.5)O₃ perovskite structure system were researched. As Nd³⁺ content
increased, the composition of specimens changed from single phase of perovskite structures to multiphase containing PbO-Nb₂O₅
pyrochlore phase whose content increased linearly with the increasing Nd³⁺ content. The dielectric constant firstly increased from 92.3
to 96.1 then gradually decreased to 68.4 as Nd³⁺ content increased. The temperature coefficient of resonant frequencies could be effectively
improved from 37.8ppm/K to 0.9ppm/K and the relationship between microwave dielectric properties and crystal structures was discussed
by using the theory of bond valence. The unloaded quality factor abruptly decreased as Nd³⁺ completely solved at A-site of the perovskite
structure then the value would decrease because of the large amount of pyrochlore phase. When x=0.05, good properties of ε_r=87.9, Qf=5210GHz and
τ_f=7.8ppm/K could be obtained in [(Pb_0.48Ca_0.52)_1-xNd_x](Fe_0.5Nb_0.5)O₃ system.

La_0.6Sr_0.4Co_1-yFe_yO₃ complex oxide powders were synthesized by a glycine-nitrate process(GNP). The electrical conductivities and the oxygen ionic conductivities of
La_0.6Sr_0.4Co_1-yFe_yO₃ ceramics were investigated by DC four-terminal method and AC impedance spectroscopy using two-terminal blocking
electrodes, respectively. The equivalent circuits for AC impedance spectra were ascertained with respect to measuring temperature. The electrical
conductivity of La_0.6Sr_0.4CoO₃ decreased monotonously with the increase of temperature from room temperature to 900℃,
while the electrical conductivities of other compositions increased with temperature through the maximum near 600℃ and then decreased.
The ionic conductivities of La_0.6Sr_0.4Co_1-yFe_yO₃ ceramics increased with temperature within the whole measuring temperature range. The electrical conductivities
and the ionic conductivities of La_0.6Sr_0.4Co_1-yFe_yO₃ ceramics enhanced with the increase of Co/Fe ratio under the same measuring temperature.
The activation energies for electronic conduction and the activation energies for oxygen ionic conduction of La_0.6Sr_0.4Co_1-yFe_yO₃
ceramics decreased with the increase of Co/Fe ratio. The ionic transport numbers of La_0.6Sr_0.4Co_1-yFe_yO₃ increased with the increase of
temperature and decreased with the increase of Co/Fe ratio at an identical temperature. La_0.6Sr_0.4Co_1-yFe_yO₃ ceramics exhibited the ionic
conductivities of 4.0×10^-2～6.5×10^-2S·cm^-1 and the ionic transport numbers of 4.6×10^-5～1.5×10^-4 at 800℃.

High capacity anode material SiAl/C composite was prepared by thermal annealing process. Its structure was characterized by XRD and its cyclability and potentiostatic
cycling performance were investigated. The charging and discharging test shows SiAl/C composite possesses higher capacity than carbonaceous
mesophase spherules. And its first irreversible capacity is decreased, comparing with Si/C composite prepared under the same conditions.
It is demonstrated that by adding Al into Si/C composite system, its first Li⁺ insertion depth is suppressed and voltage hysteresis is alleviated.
Obtained SiAl/C composite anode material has a capacity about 600mAh/g for its first Li⁺ insertion and its coulombic efficiency for the first cycle
is up to 85%. And after 25 cycles, its capacity retention can be retained about 90%.

Sr_0.5Ba_0.5Nb₂O₆ (SBN50) thin films were prepared by the organic gel method. The microstructural variation of the gel powders and SBN thin films with annealing temperature was
studied by differential thermal analysis (DTA), thermogravimetry (TG), Fourier transform infrared (FT-IR) and X-ray diffraction (XRD). The differences in the decomposition between Sr-Ba-Nb nitrate precursor
solutions with different pH values were investigated. By annealing at 700℃ for 2h, polycrystalline SBN thin films with smooth and crack-free surface were derived from the precursor solution with
pH=8. Electric properties measurement indicated that the SBN films demonstrated a ferroelectric hysteresis loop. The remanent polarization(P_r) and coercive field (E_c) were 8.17μC/cm²
and 16.9kV/cm, respectively.

The Pb_0.4Sr_0.6TiO₃ (PST) thin films with the perovskite phase were fabricated successfully on ITO/glass substrates by the sol-gel method
with rapid thermal processing (RTP) above 500℃. The crystalline phase structures and the surface morphologies of the thin films were measured through XRD, SEM and AFM respectively. Results show that both the formation of the perovskite and
contents of the crystalline phase in this PST thin film are dependent on the preparing process and the activity of ions in the formation of the crystalline
phase. By RTP, high active ions obtained in the gel decomposition directly form the crystalline phase, and consequently, much more contents of the crystalline
phase can be obtained even at a relatively lower temperature. 14% more contents of crystalline phase appear in PST thin film at 600℃ by RTP than
by heat treatment at 600℃ for a long time. The lowest temperature of forming of the proveskite phase in sol-gel derived PST thin
film is approximately 500℃ by RTP, which is 50℃ lower than that by heat treatment for a long time. The surface morphology
of the thin film is related to the heat treatment processing. By RTP the surface morphology of the thin film keeps the original state, where the
actual smooth exhibits the noncrystalline thin film and the hill-like protuberance shows the well crystalline one. Due to etching under the
oxygen atmosphere at high temperature, the thin film calcined for a long time contributes the morphology with uniformly dispersed micro conical
cylinders all over the surface on the basis of the original smooth or hill-like surface state.

A good humidity-sensitive Li⁺-modified and Ca²⁺-doped PbTiO₃ nano-film (Li⁺-Ca_xPb_1-xTiO₃, x=0.35, Li/Ti=1/100 mol/mol, sintered
at 850℃/1h; abbreviated as Li-CPT) was prepared by the sol-spin-coating process using Ca(OAc)₂, Pb(OAc)₂, Li₂CO₃ and Ti(O-ⁿBu)₄ as starting materials. Li-CPT microstructure was studied by means of AFM. AFM observation
of both morphology and linear surface roughness indicates marked reticulate grain boundaries, the linear surface roughness is within (+0.5μm)～
(-1.2μm), and hence large surface area: The film surface shows the presence of polycrystalline grains with an average area of
5μm×10μm. Such a microstructure is favorable for having a good humidity sensitivity. The crystal geometry and electron structure will change greatly
after the equate-valence substitution of Ca²⁺ with smaller Pauling ion radius for Pb²⁺. The substitution decreases the lattice distortion
(c/a), the non-symmetry and film cracks. There is a probable mechanism for electrical resistance-humidity sensitivity. H₂O molecules polarized and adsorbed on the Li-CPT
film surface, due to the doping of Li⁺ ions with smaller radius, dissociate into H⁺ and OH^-, H⁺ ions combine with lattice oxygen,
OH^- ions fill up the oxygen hole (defect site) and release free electrons which participate in electric conduction in the external electric field; hence electrical
resistance will decrease with the increase of relative humidity.

Pb_0.985La_0.01(Zr,Ti)O₃(PLZT) thin films were deposited onto LNO(100)/Si substrates by metal-organic decomposition (MOD) technique. An intermediate pre-annealing process was added
into the rapid thermal anneal (RTA) process to treat the films. Effects of intermediate pre-annealing process on crystallinity and ferroelectricity were investigated. The results show that the intermediate
pre-annealing process can affect the selection of crystalline texture. PLZT thin film without intermediate pre-annealing process displays (100)-preferential orientation. However, PLZT thin films with intermediate
pre-annealing process show random orientation. PLZT thin film without intermediate pre-annealing process shows the worse ferroelectricity. PLZT thin film with intermediate pre-annealing process of 380℃
displays the best properties. The ferroelectricity is mainly attributed to both the crystallinity and the defects in the PLZT thin films.

Using vapor transport equilibration(VTE) technique and post-annealing processing, we succeeded in the fabrication of γ-LiAlO₂ layer with a highly-preferred orientation of [100] on (0001) sapphire crystal. X-ray diffraction
indicates that the as-fabricated layer by VTE is a polycrystalline film shown to be a single-phase. When the γ-LiAlO₂ layers are annealed at 850～900℃ for about 120 hours in air, the layers become highly textured with [100]
orientation. These results reveal the possibility of fabricating γ-LiAlO₂ (100)// sapphires(0001) composite substrate for GaN-based epitaxial film by VTE.

Heavily doped silver-lead titanate composite films were prepared via a sol-gel process with fresh sol and aged sol respectively. The composition and structure
of precursor sol and film were investigated by means of XRD, SEM and TEM. The results show that silver exists in the form of Ag⁺ in fresh sol while
it forms hexagonal silver clusters in aged sol. The existence state of silver in the sol directly influences the phase formation process of films. When
silver exists as Ag⁺ in the sol, the transformation of Ag⁺ to silver crystalline particles consumes a lot of Pb²⁺ to form silver-lead alloy.
In the case that silver is slightly doped, Pb²⁺ deficient pyrochlore Pb₂Ti₂O₇ phase forms because of Pb²⁺ consumed to form
silver-lead alloy; but in the case that silver is heavily doped, the formation of silver-lead alloy saturates, and surplus Ag⁺ takes the
place of deficient Pb²⁺ and silver-containing perovskite PbTiO₃ phase formed. When silver exists in the form of silver cluster in the sol,
the formation of silver crystalline phase does not consume Pb²⁺, perovskite PbTiO₃ phase is directly formed in the films.

High hardness and low electrical resistivity graphite-like carbon (GLC) coatings were prepared by ion beam assisted magnetron sputtering deposition (IBMSD). TEM, XRD, XPS, FTIR, four probe electric
receptivity measurement method (FPM), RBS, hardness and AFM were used to sense the structures and evaluate the properties of the carbon coatings. The effects of assisted gaseous and bombarding
energies on structures and properties of the coatings were investigated. Some significant results were obtained as follows. The bond structure of GLC is mainly sp² , which can be proved by XPS, FTIR
and FPM. XRD and TEM show that its microstructure is amorphous. As CH₄ introduced, additional carbon input results in the increase of deposition rate. The surface roughness and hardness
are dependent on bombarding energies.

Pulsed-laser-arc deposition technique was introduced. Diamond like carbon (DLC) films were deposited on Si<111> and Si<100> respectively. Results of laser
raman spectroscopy showed that the as-deposit films were amorphous, having obvious sp³ structure. Meanwhile, surface topography and micro-tribological
character were investigated by using atomic force microscope and nano-scratch tester. The results show that the surface microstructure and micro-tribological
character of the film deposited on Si<100> is better than that deposited on Si<111>. The average friction coefficient of the film on Si<100> is 0.036.

The preparation of the micro/nano-stuctured surfaces is important for wetting study of material surfaces and application of biomaterials, in order to obtain super-hydrophobility or meet well the requirement
of the biological environments. In the present work, preparation of micron and sub-micron/nano-scale structured surfaces was studied. Micro-scale square or round structures on the surfaces were prepared
by photo-lithography; the distorted square or round structures such as tower-shape and disc-shape structures were imprinted by soft-lithography; the sub-micron/nano-scale net structured surfaces were
prepared by using self-assembled silica colloidal crystals as the template and infiltration of polystyrene-toluene solution in the crystals. The surface features of the samples were investigated by optical and scanning electron microscopy (SEM).

The thermal field of SiC synthesis furnace is plane, instantaneous and of inner thermal source. In the paper the temperature field of multi-heat-source furnace was simulated with the software ANSYS.
To plane, the contribution of each furnace core to the whole temperature field was analyzed. To point, the change of temperature with time on the center point was studied. To line, the change of temperature
with distance on the midline was studied. The results show that the splicing of the thermal field and shielding of each furnace core is the reason of multi-thermal-source furnaces saving power.

Phase separation and crystallization of Na₂O-B₃-SiO₂-SnO₂ system were discussed. Samples of different component points in every stage of thermal treatment and
chemistry dealing were analysed by EDAX, XRD and SEM. The results show that SnO₂ distributes in boron-alkali-rich phase separation area; the growth of SnO₂ crystal in the system depends on phase separation process; the crystallization size of SnO₂ is restrained by the scale of the phase
separation structure. The nanometer-SnO₂ material, loaded on silicon-rich porous carrier, can be obtained by controlling phase separation structure. This material has a good ability
in CO catalyst activity.

UV photosensitivity of a germanosilicate fiber was studied experimentally. The mechanisms of photosensitivity in non-hydrogen loaded fibers and hydrogen-loaded fibers
were discussed respectively. The explanation of the processes of the refractive index changes was presented. Experimental results show that refractive index changes of the non-hydrogen-loaded fibers are about 10^-4. However, the refractive index changes of
the hydrogen-loaded fibers are about 10^-3 which is one order more than that of the non-hydrogen-loaded fibers. The difference of the curves of the
refractive index changes between the two types of fibers shows that the mechanisms of photosensitivity in the two types of fibers are different.

Nano-sized Sr₂MgSi₂O₇: Eu²⁺,Dy³⁺ phosphor with long lasting behavior was synthesized by a sol-gel method. The chemical reaction process during calcination, and the luminescent property
of the obtained phosphor, were investigated in detail. The result indicated that the phosphor obtained by the sol-gel method, which showed photoluminescence and long lasting behavior, was consisted
of nano-sized grains about 50nm. The sol-gel-derived phosphor gave out a visible light upon UV illumination peaking at 465nm, while the phosphor obtained by solid reaction showed two emission peaks upon
UV irradiation at 404nm and 459nm respectively. The difference in emission spectra can be ascribed to the different coordinators formed within the silicate matrix. The phosphor synthesized by solid
reaction exhibited a better afterglow character than the phosphor obtained by the sol-gel method, due to a higher trap concentration which was formed by a higher reaction temperature.

Compound nano-particles of the superparamagnetic iron oxide, which are core-shell structure with iron oxide as core and dextran as shell, were prepared in the single-carboxyl
dextran water-base solution by a chemical co-deposition method. The factors of controlling the processing were investigated systematically. The compound particle’s
morphology and microstructure and the distribution of particale diameters were investigated by means of XRD, TEM and GLS. The resultes show
that the diameter of the compound nano particle can be decreased by accurately controlling the modification dextran quantity added, the drip-speed of
NH4OH and the reaction time as well as reaction temperature. Under the conditions of optimum parameters, the core-shell compound structure particle average
diameter is 7.8nm, the average core diameter of iron oxide is 5nm and the thick of dextran shell is 1～1.5nm.

A new type AgInSbTe phase change film was prepared by direct magnetron sputtering. X-ray diffraction (XRD) spectra of the film in as-deposited and heat-treated states show the film changed from amorphous
to crystalline states due to heat-treatment. By using differential scanning calorimetry (DSC) data of the amorphous film materials, measuring the peak temperature of crystallization at different heating
rates, the mol activation energies for crystallization and frequency factors were calculated. By judging from the mol activation energies, the new type AgInSbTe phase change film has a high value of activation
energies for crystallization and will be suitable to the high-speed phase change disks for the direct overwrite.

Diamond films were deposited onto WC-Co cemented carbide substrate by using microwave plasma chemical vapor deposition(CVD). The effects of TiN_x interlayer introduced on
the diamond film quality and its adhesion to the substrate were investigated. The results show that by pre-depositing TiN_x interlayer in which nitrogen
concentration changes gradually, the diamond film on the cemented carbide substrate etched by acid solution has very good quality; and its critical
load measured by indentation test, is as high as 1000N.

In the investigations on sintering properties of corundum/β-Sialon composite materials prepared by reaction sintering, the stepwise regress method was used to establish the models of
properties (bulk density, apparent porosity, and modulus of rupture at room temperature). The results of checking experiments are in accordance with the regress values. This means that the models can
be used to forecast the sintering properties of corundum/β-Sialon composite.

AlN-BN composite ceramics were produced by pressureless sintering process with BN powders bought from market and AlN powders having a specific surface area of 17.4m²/g
synthesized from a combustion precursor, as starting materials. The sintering behavior and characterization of AlN-BN composite ceramics were studied.
The results showed that the sintering temperature for densification was from 1500 to 1650℃ because of the high sintering activity of AlN powders.
AlN-15BN composite ceramics with relative density 95.6% were fabricated by sintering at 1650℃. The thermal conductivity of the composite
ceramics was increased, while the density remained almost constant as sintering temperature increased. AlN-15BN composite ceramics with relative
density 96.1%, thermal conductivity 132.6W·m^-1·K^-1, and HRA hardness 64.2 were produced by sintering at 1850℃ for 3h.
The mechanism that high specific surface area AlN powders promoting the densification of AlN-BN composite ceramics was suggested, and the
characterizations of the sintered bodies were determined by XRD, SEM and so on.

Two kinds of multilayer CVD SiC coatings were prepared by LPCVD on a three dimensional C/SiC composites. The surface and cross section micromorphologies of the coatings were analyzed by SEM.
The oxidation behaviors of the composites with multilayer coatings at 1300℃ in air were studied. The interlayer gaps of the multilayers can be effectively controlled by the slow deposition. The multilayer
coatings prepared by the slow deposition were integrated as a whole which can improve the oxidation protection property evidently. The weight loss of the 3D C/SiC protected with the multilayer CVD SiC
coatings prepared by slow deposition after oxidation for 30h at 1300℃ in air can be controlled below 1%.