Materials Reports 2019, Vol. 33 Issue (z1): 321-325 |
METALS AND METAL MATRIX COMPOSITES |
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Study on Accident Resistant SiC/Zr Composite Material Prepared by Powder Metallurgy Process |
YUE Huifang1,2, FENG Keqin1, PANG Hua2, ZHANG Ruiqian3, LI Yuanming2, LYU Liangliang2, ZHAO Yanli2, YUAN Pan2
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1 School of Manufacturing Science and Engineering, Sichuan University, Chengdu 610065 2 Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu 610213 3 Science and Technology on Reactor Fuel and Material Laboratory, Nuclear Power Institute of China, Chengdu 610041 |
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Abstract Accident resistant SiC/Zr composite material was prepared by powder metallurgy process using SiC powder and ZrH2 powder as the raw material. The optimum process parameters for sintering SiC/Zr composite material were determined by combination of thermodynamics analysis of SiC-Zr system and TGA-DSC results of ZrH2 and SiC mixed powders. In addition, the interface reaction in SiC-Zr system and corrosion beha-vior of SiC/Zr were also studied in detail. The results show that SiC/Zr composite material with high density(96%) can be successfully prepared by sintering at 1 100 ℃ for 90 min. SiC reacts with Zr at the interface and its products are Zr2Si and ZrC, thus leading to a layer structure of ZrC/ZrC+Zr2Si/ZrC from SiC side to Zr side in the reaction zone. Compared with the property of Zr prepared under the same conditions, corrosion resistance of SiC/Zr composite material is greatly enhanced
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Published: 05 July 2019
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About author:: Huifang Yue assistant engineer of Nuclear Power Institute of China (NPIC), received her bachelor degree in material forming and controlling engineering and master degree in material processing engineering from Sichuan University in Sep. 2010—Jan. 2017. As the first author, she published two papers in domestic journals and won the title of “outstanding graduate” of Sichuan University. After graduation, she works in NPIC, majoring in the design and development of nuclear fuel and nuclear materials.Keqin Feng professor of Sichuan University, Ph.D.supervisor, graduated from the department of materials of Sichuan University in 2004 and works there till now. She has been long engaged in material forming and preparation, metallurgical engineering research and published more than 120 academic papers in core academic journals at home and abroad, including 37 SCI papers and 60 EI papers. It has been granted 8 national invention patents and 4 utility model patents. |
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