Synthesis, physical, and mechanical properties of bulk Zr(3)Al(3)C(5) ceramic

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	Synthesis, physical, and mechanical properties of bulk Zr(3)Al(3)C(5) ceramic
	L. F. He; Y. C. Zhou; Y. W. Bao; Z. J. Lin; J. Y. Wang
	2007
发表期刊	Journal of the American Ceramic Society
ISSN	0002-7820
卷号	90 期号:4 页码:1164-1170
摘要	An in situ reactive hot-pressing process using zirconium (zirconium hydride), aluminum, and graphite as staring materials and Si and Y(2)O(3) as additives was used to synthesize bulk Zr(3)Al(3)C(5) ceramics. This method demonstrates the advantages of easy synthesis, lower sintering temperature, high purity and density, and improved mechanical properties of synthesized Zr(3)Al(3)C(5). Its electrical and thermal properties were measured. Compared with ZrC, Zr(3)Al(3)C(5) has a relatively low hardness (Vickers hardness of 12.5 GPa), comparable stiffness (Young's modulus of 374 GPa), but superior strength (flexural strength of 488 GPa) and toughness (fracture toughness of 4.68 MPa.m(1/2)). In addition, the stiffness decreases slowly with increasing temperature and at 1600 degrees C remains 78% of that at ambient temperature, indicating that Zr(3)Al(3)C(5) is a potential high-temperature structural ceramic.
部门归属	chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;zhou, yc (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china;yczhou@imr.ac.cn
关键词	Thermal-conductivity Zirconium Carbide High-temperatures Silicon-carbide Microstructure Nitride Energy Additives Modulus Alzrc2
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33574
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. F. He,Y. C. Zhou,Y. W. Bao,et al. Synthesis, physical, and mechanical properties of bulk Zr(3)Al(3)C(5) ceramic[J]. Journal of the American Ceramic Society,2007,90(4):1164-1170.
APA	L. F. He,Y. C. Zhou,Y. W. Bao,Z. J. Lin,&J. Y. Wang.(2007).Synthesis, physical, and mechanical properties of bulk Zr(3)Al(3)C(5) ceramic.Journal of the American Ceramic Society,90(4),1164-1170.
MLA	L. F. He,et al."Synthesis, physical, and mechanical properties of bulk Zr(3)Al(3)C(5) ceramic".Journal of the American Ceramic Society 90.4(2007):1164-1170.