Hf(3)AlN: A Novel Layered Ternary Ceramic with Excellent Damage Tolerance

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	Hf(3)AlN: A Novel Layered Ternary Ceramic with Excellent Damage Tolerance
	F. Z. Li; B. Liu; J. Y. Wang; Y. C. Zhou
	2010
发表期刊	Journal of the American Ceramic Society
ISSN	0002-7820
卷号	93 期号:1 页码:228-234
摘要	In this work, bulk Hf(3)AlN ceramic was synthesized by an in situ reaction/hot pressing method using Hf and AlN as initial materials. The reaction path during the synthesis process was investigated. Hf(3)AlN was found to form via the reaction of Hf and AlN above 1000 degrees C. Furthermore, physical and mechanical properties of Hf(3)AlN, such as electrical conductivity, flexural strength, and elastic moduli were also characterized. Similar to typical layered ternary ceramics Ti(3)SiC(2) and Ti(3)AlC(2), Hf(3)AlN possesses metallic conductivity and excellent damage tolerance, which is also the first one of this type that has ever been reported to crystallize in an orthorhombic structure. It is believed that a typical layered crystal structure and weak inter-layer bondings contribute to the damage tolerance of Hf(3)AlN. Moreover, the stiffness of Hf(3)AlN can sustain a temperature as high as 1450 degrees C, being 250 degrees C higher than that of Ti(3)AlC(2), which renders it a promising high-temperature structural material.
部门归属	[li, fangzhi; liu, bin; wang, jingyang; zhou, yanchun] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [li, fangzhi; liu, bin] chinese acad sci, grad sch, beijing 100039, 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	Liquid Reaction Synthesis Titanium-silicon Carbide Fusion-reactor Materials Ab-initio Calculation Mechanical-properties Electronic-structure Elastic Properties Crystal-structure Nitride Ceramics Al-n
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31207
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	F. Z. Li,B. Liu,J. Y. Wang,et al. Hf(3)AlN: A Novel Layered Ternary Ceramic with Excellent Damage Tolerance[J]. Journal of the American Ceramic Society,2010,93(1):228-234.
APA	F. Z. Li,B. Liu,J. Y. Wang,&Y. C. Zhou.(2010).Hf(3)AlN: A Novel Layered Ternary Ceramic with Excellent Damage Tolerance.Journal of the American Ceramic Society,93(1),228-234.
MLA	F. Z. Li,et al."Hf(3)AlN: A Novel Layered Ternary Ceramic with Excellent Damage Tolerance".Journal of the American Ceramic Society 93.1(2010):228-234.