Effect of Ti Dopant on the Mechanical Properties and Oxidation Behavior of Zr2[Al(Si)]4C5 Ceramics
2011; Wiley; Volume: 94; Issue: 6 Linguagem: Inglês
10.1111/j.1551-2916.2010.04300.x
ISSN1551-2916
AutoresXinpo Lu, Huimin Xiang, Lingfeng He, Luchao Sun, Yanchun Zhou,
Tópico(s)Advanced materials and composites
ResumoJournal of the American Ceramic SocietyVolume 94, Issue 6 p. 1872-1877 Effect of Ti Dopant on the Mechanical Properties and Oxidation Behavior of Zr2[Al(Si)]4C5 Ceramics Xinpo Lu, Xinpo Lu Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China ‡Present address: Graduate School of Chinese Academy of Sciences, Beijing 100039, China.Search for more papers by this authorHuimin Xiang, Huimin Xiang Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China ‡Present address: Graduate School of Chinese Academy of Sciences, Beijing 100039, China.Search for more papers by this authorLing-Feng He, Ling-Feng He Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China ‡Present address: Graduate School of Chinese Academy of Sciences, Beijing 100039, China.Search for more papers by this authorLuchao Sun, Luchao Sun Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China ‡Present address: Graduate School of Chinese Academy of Sciences, Beijing 100039, China.Search for more papers by this authorYanchun Zhou, Corresponding Author Yanchun Zhou Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China **Fellow, the American Ceramic Society.†Author to whom correspondence should be addressed. e-mail: [email protected]Search for more papers by this author Xinpo Lu, Xinpo Lu Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China ‡Present address: Graduate School of Chinese Academy of Sciences, Beijing 100039, China.Search for more papers by this authorHuimin Xiang, Huimin Xiang Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China ‡Present address: Graduate School of Chinese Academy of Sciences, Beijing 100039, China.Search for more papers by this authorLing-Feng He, Ling-Feng He Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China ‡Present address: Graduate School of Chinese Academy of Sciences, Beijing 100039, China.Search for more papers by this authorLuchao Sun, Luchao Sun Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China ‡Present address: Graduate School of Chinese Academy of Sciences, Beijing 100039, China.Search for more papers by this authorYanchun Zhou, Corresponding Author Yanchun Zhou Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China **Fellow, the American Ceramic Society.†Author to whom correspondence should be addressed. e-mail: [email protected]Search for more papers by this author First published: 03 February 2011 https://doi.org/10.1111/j.1551-2916.2010.04300.xCitations: 11 R. Naslain—contributing editor This work was supported by the National Outstanding Young Scientist Foundation (No. 59925208 for Y.C. Zhou), the Natural Science Foundation of China under Grant No. 50232040, 50302011, 50772114, and 50832008, and the "Hundred-Talent Plan" sponsored by the Chinese Academy of Sciences. Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinkedInRedditWechat Abstract Ti-doped Zr2[Al(Si)]4C5 solid solutions were prepared by an in situ hot-pressing method and its effect on the mechanical properties and high-temperature oxidation behavior were investigated. The solid solutions show comparable hardness, strength, and fracture toughness with Zr2[Al(Si)]4C5 except modulus, which decreases with Ti dopant content. The stiffness is maintained up to 1600°C, which derives from the clean grain boundaries without glassy phases. The oxidation resistance of [Zr1−x(Ti)x]2[Al(Si)]4C5 solid solutions at 1000°–1300°C is improved remarkably. The improved oxidation resistance is mostly due to the formation of a more protective oxide scale consisting of (Zr,Ti)O2, Al2O3, and mullite. Reference 1 C. Kral, W. Lengauer, D. Rafaja, and P. Ettmayer, "Critical Review on the Elastic Properties of Transition Metal Carbides, Nitrides and Carbonitrides," J. 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