Reactive Hot Pressing and Properties of Nb2AlC

doi:10.1111/j.1551-2916.2009.03187.x

IMR OpenIR

	Reactive Hot Pressing and Properties of Nb2AlC
	Zhang, Wei 1; Travitzky, Nahum 1; Hu, Chunfeng 2; Zhou, Yanchun 2; Greil, Peter 1
通讯作者	Travitzky, Nahum(nahum.travitzky@ww.uni-erlangen.de)
	2009-10-01
发表期刊	JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN	0002-7820
卷号	92 期号:10 页码:2396-2399
摘要	Dense Nb2AlC ceramic was synthesized from NbC, Nb, and Al powder mixture at 1650 degrees C and a pressure of 30 MPa for 90 min using an in situ reaction/hot-pressing method. The reaction kinetics, microstructure, physical, and mechanical properties of the fabricated material were investigated. A thermal expansion coefficient of similar to 8.1 x 10(-6) K-1 was measured in the temperature range of 30 degrees-1050 degrees C. At room temperature a thermal conductivity of similar to 20 W. (m. K)(-1) and a Vickers hardness of similar to 4.5 GPa were determined. The material attained Young's modulus, four-point bending strength and fracture toughness of similar to 294 GPa, similar to 443 MPa, and similar to 5.9 MPa. m(1/2), respectively. The nanolayered grains with a mean grain size of 17 mu m contributed to the damage tolerance of this ceramic. Quenching from 600 degrees, 800 degrees, and 1000 degrees C into water at room temperature resulted in decrease in bending strength from 443 MPa for the as-synthesized Nb2AlC to 391, 156, and 149 MPa, respectively.
DOI	10.1111/j.1551-2916.2009.03187.x
收录类别	SCI
语种	英语
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics
WOS记录号	WOS:000270188300037
出版者	WILEY-BLACKWELL
引用统计	被引频次：44[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/321006/95874
专题	中国科学院金属研究所
通讯作者	Travitzky, Nahum
作者单位	1.Univ Erlangen Nurnberg, Dept Mat Sci, D-91058 Erlangen, Germany 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Wei,Travitzky, Nahum,Hu, Chunfeng,et al. Reactive Hot Pressing and Properties of Nb2AlC[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2009,92(10):2396-2399.
APA	Zhang, Wei,Travitzky, Nahum,Hu, Chunfeng,Zhou, Yanchun,&Greil, Peter.(2009).Reactive Hot Pressing and Properties of Nb2AlC.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,92(10),2396-2399.
MLA	Zhang, Wei,et al."Reactive Hot Pressing and Properties of Nb2AlC".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 92.10(2009):2396-2399.