High Temperature Internal Friction Behavior of Unidirectionally Solidified Al2O3/YAG Eutectic

被引：0

作者：

Ueno, Shunkichi ^{[1
]}

Takata, Satoshi ^{[2
]}

Tanabe, Yasuhiro ^{[2
]}

Akatsu, Takashi ^{[2
]}

Yasuda, Eiichi ^{[2
]}

Waku, Yoshiharu ^{[3
]}

机构：

[1] Osaka Univ, Inst Sci & Ind Res, Mihogaoka 8-1, Osaka 5670047, Japan

[2] Tokyo InstTechnol, Mat Struct Lab, Midori ku, Yokohama 2268503, Japan

[3] Shimane Uviv, Interdisciplinary Fac Sci & Engn, Matsue 6908504, Japan

来源：

THERMEC 2009, PTS 1-4 | 2010年 / 638-642卷

基金：

日本学术振兴会;

关键词：

Internal friction; Uni-directional solidification; Al2O3/YAG; COMPOSITE; CREEP;

D O I：

10.4028/www.scientific.net/MSF.638-642.2482

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, the internal friction behaviors of unidirectionally solidified Al2O3/YAG eutectic that are examined by the authors in passed several years are reviewed. The internal friction of this eutectic increased with increasing temperatures above 1200 degrees C. The apparent activation energy of the eutectic sample in the range from 1100 to 1400 degrees C was same to that of Al2O3 single crystal. Above 1200 degrees C, the internal friction of this material drastically increased with increasing temperatures. The magnitude of the internal friction strongly depended on the elevated temperatures and the cycle numbers of the torsional loading. For the 1400 degrees C test, the internal friction gradually increased with the loading cycles and then saturated by 103 times of the loading cycles.

引用

页码：2482 / +

页数：2

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