The aqueous slurries were prepared usingtetramethyl ammonium hydroxide (TMAH) as dispersant, nano-TiN and submicron SiC
powders as starting materials. The dispersion, stabilization mechanism and spray drying behaviors of SiC/nano-TiN aqueous mixed slurry were analyzed. The results show that TMAH can be absorbed on the surface of nano-TiN and SiC particles, and the dispersibility of particles is cooperatively improved by electrostatic and steric effects. The mixed slurry possesses better dispersion and stabilization when pH value is 8 and the amount of TMAH is 0.75wt%, and the SiC/nano-TiN composite powders prepared by spray drying distribute uniformly with good fluidity.
GUO Xing-Zhong
,
LI Hai-Miao
,
ZHU Xiao-Yi
,
YANG Hui
,
FU Pei-Xin
,
GAO Li-Hua
. Characteristics of SiC/nano-TiN Aqueous Mixed Slurry and Its Spray Drying Behavior[J]. Journal of Inorganic Materials, 2008
, 23(6)
: 1211
-1215
.
DOI: 10.3724/SP.J.1077.2008.01211
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