A New Method to Improve the High-Temperature Mechanical Properties of Ti(3)SiC(2) by Substituting Ti with Zr, Hf, or Nb

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	A New Method to Improve the High-Temperature Mechanical Properties of Ti(3)SiC(2) by Substituting Ti with Zr, Hf, or Nb
	D. T. Wan; L. F. He; L. L. Zheng; J. Zhang; Y. W. Bao; Y. C. Zhou
	2010
发表期刊	Journal of the American Ceramic Society
ISSN	0002-7820
卷号	93 期号:6 页码:1749-1753
摘要	Ti(3)SiC(2) shows a unique combination of the properties of both metals and ceramics. However, its stiffness and strength lose rapidly above 1050 degrees C, which is the main obstacle for the high-temperature application of this material. To improve the high-temperature mechanical properties of Ti(3)SiC(2), Zr, Hf, or Nb were used as dopants in Ti(3)(SiAl)C(2). At room temperature, the Zr-, Hf-, or Nb-doped Ti(3)(SiAl)C(2) ceramics have comparable stiffness, hardness, strength, and fracture toughness with those of Ti(3)(SiAl)C(2). At high temperatures, however, a significant improvement in stiffness and strength has been achieved for (Ti(1-x)T(x))(3)(SiAl)C(2) (T=Zr, Hf, or Nb). (Ti(1-x)T(x))(3)(SiAl)C(2) can retain high degrees of stiffness and strength up to 1200 degrees C, which is 150 degrees C higher than those for Ti(3)(SiAl)C(2).
部门归属	[wan, de-tian; he, ling-feng; zheng, li-li; zhang, jie; bao, yi-wang; zhou, yan-chun] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [wan, de-tian; bao, yi-wang] china bldg mat acad, state key lab green bldg mat, beijing 100024, peoples r china. [he, ling-feng; zheng, li-li; zhang, jie] 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	Situ Reaction Synthesis Ti3si(Al)C-2/sic Composites Polycrystalline Ti3sic2 Tribological Properties Grain-size c Ceramics Al
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31484
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	D. T. Wan,L. F. He,L. L. Zheng,et al. A New Method to Improve the High-Temperature Mechanical Properties of Ti(3)SiC(2) by Substituting Ti with Zr, Hf, or Nb[J]. Journal of the American Ceramic Society,2010,93(6):1749-1753.
APA	D. T. Wan,L. F. He,L. L. Zheng,J. Zhang,Y. W. Bao,&Y. C. Zhou.(2010).A New Method to Improve the High-Temperature Mechanical Properties of Ti(3)SiC(2) by Substituting Ti with Zr, Hf, or Nb.Journal of the American Ceramic Society,93(6),1749-1753.
MLA	D. T. Wan,et al."A New Method to Improve the High-Temperature Mechanical Properties of Ti(3)SiC(2) by Substituting Ti with Zr, Hf, or Nb".Journal of the American Ceramic Society 93.6(2010):1749-1753.