Atomic-scale microstructure and elastic properties of quaternary Zr-Al-Si-C ceramics

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	Atomic-scale microstructure and elastic properties of quaternary Zr-Al-Si-C ceramics
	Z. J. Lin; L. F. He; J. Y. Wang; M. S. Li; Y. W. Bao; Y. C. Zhou
	2008
发表期刊	Acta Materialia
ISSN	1359-6454
卷号	56 期号:9 页码:2022-2031
摘要	Transmission electron microscopy characterizations and elastic properties of two quaternary carbides, i.e. Zr(2()Al(Si))(4) C(5) and Zr(3)(Al(Si))(4)C(6) are reported. The space group and atomic-scale microstructures of both compounds were determined using a combination of selected area electron diffraction, convergent beam electron diffraction, high-resolution transmission electron microscopy and Z-contrast scanning transmission electron microscopy. In addition, the combined experimental and theoretical studies on elastic properties for Zr(2)(Al(Si))(4)C(5) are presented. A full set of second-order elastic constants, bulk modulus, shear modulus, and Young's modulus were calculated using first-principles calculations. Both experimental and theoretical works demonstrated that quaternary Zr-Al-Si-C ceramics possess close elastic properties to ZrC. Furthermore, Zr(2)(Al(Si))(4)C(5) retained a high Young's modulus up to about 1580 degrees C, which can be attributed to its comparable activation energy of lattice drag process to that of ZrC. (c) 2008 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属	[lin, z. j.; he, l. f.; wang, j. y.; li, m. s.; bao, y. w.; zhou, y. c.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. [lin, z. j.; he, l. f.] chinese acad sci, grad sch, beijing 100049, peoples r china.;zhou, yc (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china;yczhou@imi.ac.cn
关键词	Ceramics Hot-pressing Crystal Structure Tem Elastic Property Mechanical-properties Internal-friction Crystal-structure High-temperature Thermoelectric Properties Bulk Zr2al3c4 Oxidation Zr3al3c5 Carbides Modulus
URL	查看原文
WOS记录号	WOS:000256140800011
引用统计	被引频次：50[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/32928
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Z. J. Lin,L. F. He,J. Y. Wang,et al. Atomic-scale microstructure and elastic properties of quaternary Zr-Al-Si-C ceramics[J]. Acta Materialia,2008,56(9):2022-2031.
APA	Z. J. Lin,L. F. He,J. Y. Wang,M. S. Li,Y. W. Bao,&Y. C. Zhou.(2008).Atomic-scale microstructure and elastic properties of quaternary Zr-Al-Si-C ceramics.Acta Materialia,56(9),2022-2031.
MLA	Z. J. Lin,et al."Atomic-scale microstructure and elastic properties of quaternary Zr-Al-Si-C ceramics".Acta Materialia 56.9(2008):2022-2031.