Fabrication and Mechanical Property of W-Y2O3 Composites and Graded material

doi:10.15541/jim20170353

Abstract

Abstract:

W-Y₂O₃ composite with the gradient variation of volume content of Y₂O₃was fabricated by pressureless sintering process. Phases and microstructure of W-Y₂O₃ composite were characterized. Fracture mechanism was explored by means of the measured results of mechanical properties and fracture morphology. Distribution of thermal stress in W-Y₂O₃ graded material during sintering is simulated by finite element method, while feasibility of composition content and structure of each layer are analyzed, then W-Y₂O₃ graded material is successfully fabricated by this process. The results show that the mechanical properties of W-Y₂O₃ composite decrease with the increment of volume content of Y₂O₃, which is mainly contributed to the effects of inherent strength of composed phase, porosity and grain size. Finally, faultless W-Y₂O₃ graded material with high quality of interface bonding can be fabricated by reasonable design of gradient layers.

Key words: W-Y₂O₃Graded Material, W-Y₂O₃ composites, Thermal stress, Mechanical property

CLC Number:

TB331

WANG Shi-Yang, FU Yu-Dong, CHEN Lei, WANG Yu-Jin. Fabrication and Mechanical Property of W-Y₂O₃ Composites and Graded material[J]. Journal of Inorganic Materials, 2018, 33(6): 596-602.

Figures/Tables 10

Table 1 Compositional and thickness designs of W-Y2O3 composite layers

Composite code	Composition/vol%		Thickness/mm
Composite code	W	Y₂O₃	Thickness/mm
WY1	82	18	0.5
WY2	69	31	0.5
WY3	57	43	1.0
WY4	44	56	1.0
WY5	34	66	1.0
WY6	25	75	1.0
WY7	17	83	1.0
WY8	6	94	2.0

Fig. 1 XRD patterns of W-Y2O3 composites

Table 2 The relative densities of W-Y2O3 composites

Materials code	Measured de- nsity/(g•cm^-3)	Density /%	Axial shrinkage/%	Radial shrinkage/%
WY1	16.679	99.5	19.8	14.6
WY2	14.657	98.3	20.0	13.7
WY3	12.934	98.1	19.8	12.5
WY4	10.899	96.3	20.3	11.5
WY5	9.226	93.3	20.0	12.2
WY6	7.916	92.1	20.0	10.7
WY7	6.879	92.4	20.1	10.3
WY8	5.347	91.1	19.7	9.9

Fig. 2 SEM images of W-Y2O3 composites(a) WY1; (b) WY3; (c) WY5; (d) WY7

Fig. 3 Flexural strength and elastic modulus of W-Y2O3 composites

Fig. 4 Fracture surface SEM images of W-Y2O3 composites(a) WY1; (b) WY3; (c) WY5; (d) WY7

Fig. 5 Mesh generation of W-Y2O3 graded material

Fig. 6 FEA results of thermal stress(a) Stress distribution patten; (b) Stress distribution curves

Fig. 7 Cross section SEM image of W-Y2O3 graded material

Fig. 8 Vickers hardness of W-Y2O3 graded materials at different positions

References 23

[1]	TETSUI T. Development of a TiAl turbocharger for passenger vehicles. Materials Science & Engineering A, 2002, 329-331(1): 582-588.
[2]	CUI REN-JIE, GAO MING, ZHANG HU,et al. Interactions between TiAl alloys and yttria refractory material in casting process. Journal of Materials Processing Technology, 2010, 210(9): 1190-1196.
[3]	苏叶清. 镁合金熔炼用陶瓷材料的研究. 天津: 天津大学硕士学位论文, 2004: 1-3.
[4]	GUAN P, GUO X P, DING X,et al. Directionally solidified micro- structure of an ultra-high temperature Nb-Si-Ti-Hf-Cr-Al alloy. Acta Metallurgica Sinica, 2004, 23(4): 1093-1098.
[5]	吴梅柏. Nb基超高温合金熔炼用坩埚的选择及石墨坩埚惰性涂层的制备. 西安: 西北工业大学硕士学位论文, 2007: 5-10.
[6]	ZHANG XIAN, CHENG LAI-FEI, ZHANG LI-TONG,et al. Thermodynamic analysis for the reaction of liquid uranium and its alloys with coatings of graphite crucibles. Rare Metal Matetials and Engineering, 2003, 32(3): 187-190.
[7]	HINO T, AKIBA M. Japanese developments of fusion reactor plasma facing components. Fusion Engineering & Design, 2000, 49-50: 97-105.
[8]	DAVIS J W, BARABASHV R, MAKAHANKOW A, ,et al. Assessment of tungsten for use in the ITER plasma facing components. Journal of Nuclear Materials. , 1998, 258-263(4): 308-312.
[9]	KUANG J P, HARDING R A, CAMPBELL J.Investigation into refractories as crucible and mould materials for melting and castingγ-TiAl alloys. Materials Science and Technology, 2000, 16(9): 1007-1016.
[10]	TAN JUN, ZHOU ZHANG-JIAN, ZHONG MING,et al. Fabrication and performance evaluation of yttrium oxide dispersion strengthen tungsten composites. China Tungsten Industry, 2012, 21(1): 40-42.
[11]	ISHIWATA Y, ITOH Y.Fabrication and application of yttrium oxide dispersion tungsten composites.China Tungsten Industry, 1997, 9: 14-20.
[12]	NAEBE M, SHIRVANIMOGHADDAM K.Functionally graded materials: a review of fabrication and properties.Applied Materials Today, 2016, 5: 223-245.
[13]	BURLAYENKO V N, ALTENBACH H, SADOWSKI T,et al. Modelling functionally graded materials in heat transfer and thermal stress analysis by means of graded finite elements. Applied Mathematical Modelling, 2017, 45: 422-438.
[14]	WAKASHIMA K, HIRANO T, NIINOM. Space applications of advanced structural materials.ESA Special Publication, 1990, 303: 97.
[15]	沈海丰. Y2O3-W功能梯度材料的设计及抗热震性能. 哈尔滨: 哈尔滨工业大学硕士学位论文, 2013: 36.
[16]	RAVICHANDRANK S.Elastic properties of two phase composites.Journal of the American Ceramic Society, 1994, 77(5): 1178-1184.
[17]	FENG YUN-BIAO, GUO SHUANG-QUAN, GE CHANG-CHUN,et al. Simulation of thermal stress of W/Cu functionally graded coating of plasma facing materials. Stanford Materials, 2010, 24(16): 84-87.
[18]	SURESH S, MORTENSEN A.功能梯度材料基础-制备及热机械行为. 北京: 国防工业出版社, 2000: 92.
[19]	JIA ZUO-CHENG.Sintering mechanism of W-Y2O3 alloy and its corrosion resistance to molten metal.China Tungsten Industry, 1997, 5: 22-30.
[20]	KURIBAYASHI K, YOSHIMURA M, OHTA T,et al. High-temperature phase relations in the system Y2O3-Y2O3·WO3. Journal of the American Ceramic Society, 1980, 63(11/12): 644-647.
[21]	周玉. 陶瓷材料学. 北京: 科学出版社, 2004: 256.
[22]	BATTABYAL M, SCHAUBLIN R, SPATIGP, BALUC N.W-2wt% Y2O3 composite: microstructure and mechanical properties.Materials Science & Engineering A, 2012, 538(3): 53-57.
[23]	张淼. APDL 参数化设计语言在材料加工数值模拟中的应用. 昆明: 昆明理工大学硕士学位论文, 2003: 76-82.

Fabrication and Mechanical Property of W-Y₂O₃ Composites and Graded material

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 10

References 23

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	GAO Kefeng, HE Xinxin, LIU Zengqian, ZHANG Zhefeng. Bioinspired Nacre-like Ceramic-polymer Composites with Multiscale Layered and Gradient Structures [J]. Journal of Inorganic Materials, 2026, 41(5): 573-582.
[2]	SHI Jinyu, LEI Yiming, WANG Chenxu, ZHANG Jie, WANG Jingyang. Ion Irradiation Damage Behavior in Titanium Carbide with Different Stoichiometry [J]. Journal of Inorganic Materials, 2026, 41(3): 322-330.
[3]	ZHENG Chen, WANG Xiangning, YUAN Henan, YANG Jiawei, LI Chuanjian, WANG Huadong. Mechanical Property Failure of Alumina Fiber Reinforced Silica Composite [J]. Journal of Inorganic Materials, 2026, 41(3): 331-339.
[4]	ZHANG Yunbo, WANG Bing, LI Wei, SONG Quzhi, DU Yi’ang, WANG Yingde. Size Effect of Nanosheet on BN Fibers Derived from BNNS/Polyborazine Hybrid Precursor [J]. Journal of Inorganic Materials, 2026, 41(3): 359-369.
[5]	YUAN Wang, HU Jianbao, ZHOU Liang, KAN Yanmei, ZHANG Xiangyu, DONG Shaoming. Effect of Argon Atmosphere Heat Treatment on Mechanical Properties and Microstructural Evolution of Shicolon-II SiC Fibers [J]. Journal of Inorganic Materials, 2026, 41(1): 119-128.
[6]	ZHANG Yongheng, CHEN Jixin. Preparation and Properties of Ytterbium Aluminosilicate Glass and SiC Modified h-BN-based Composites [J]. Journal of Inorganic Materials, 2026, 41(1): 37-44.
[7]	SUN Yuxuan, WANG Zheng, SHI Xue, SHI Ying, DU Wentong, MAN Zhenyong, ZHENG Liaoying, LI Guorong. Defect Dipole Thermal-stability to the Electro-mechanical Properties of Fe Doped PZT Ceramics [J]. Journal of Inorganic Materials, 2025, 40(5): 545-551.
[8]	CHEN Yi, QIU Haipeng, CHEN Mingwei, XU Hao, CUI Heng. SiC/SiC Composite: Matrix Boron Modification and Mechanical Properties [J]. Journal of Inorganic Materials, 2025, 40(5): 504-510.
[9]	CUI Ning, ZHANG Yuxin, WANG Lujie, LI Tongyang, YU Yuan, TANG Huaguo, QIAO Zhuhui. Single-phase Formation Process and Carbon Vacancy Regulation of (TiVNbMoW)C_x High-entropy Ceramics [J]. Journal of Inorganic Materials, 2025, 40(5): 511-520.
[10]	LI Ziwei, GONG Weilu, CUI Haifeng, YE Li, HAN Weijian, ZHAO Tong. (Zr, Hf, Nb, Ta, W)C-SiC Composite Ceramics: Preparation via Precursor Route and Properties [J]. Journal of Inorganic Materials, 2025, 40(3): 271-280.
[11]	GAO Chenguang, SUN Xiaoliang, CHEN Jun, LI Daxin, CHEN Qingqing, JIA Dechang, ZHOU Yu. SiBCN-rGO Ceramic Fibers Based on Wet Spinning Technology: Microstructure, Mechanical and Microwave-absorbing Properties [J]. Journal of Inorganic Materials, 2025, 40(3): 290-296.
[12]	MU Haojie, ZHANG Yuanjiang, YU Bin, FU Xiumei, ZHOU Shibin, LI Xiaodong. Preparation and Properties of ZrO₂ Doped Y₂O₃-MgO Nanocomposite Ceramics [J]. Journal of Inorganic Materials, 2025, 40(3): 281-289.
[13]	WANG Yueyue, HUANG Jiahui, KONG Hongxing, LI Huaizhu, YAO Xiaohong. Silver Loaded Radial Mesoporous Silica: Preparation and Application in Dental Resins [J]. Journal of Inorganic Materials, 2025, 40(1): 77-83.
[14]	FAN Wugang, CAO Xiong, ZHOU Xiang, LI Ling, ZHAO Guannan, ZHANG Zhaoquan. Anticorrosion Performance of 8YSZ Ceramics in Simulated Aqueous Environment of Pressurized Water Reactor [J]. Journal of Inorganic Materials, 2024, 39(7): 803-809.
[15]	WU Yuhao, PENG Renci, CHENG Chunyu, YANG Li, ZHOU Yichun. First-principles Study on Mechanical Properties and Melting Curve of Hf_xTa_1-_xC System [J]. Journal of Inorganic Materials, 2024, 39(7): 761-768.