Phase evaluation during high temperature long heat treatments in the Y2O3-Al2O3-SiO2 system

被引：31

作者：

Ahmad, S. ^{[1
]}

Ludwig, T. ^{[1
]}

Herrmann, M. ^{[2
]}

Mahmoud, M. M. ^{[1
]}

Lippmann, W. ^{[2
]}

Seifert, H. J. ^{[1
]}

机构：

[1] Karlsruhe Inst Technol, Inst Appl Mat, D-76021 Karlsruhe, Germany

[2] Tech Univ Dresden, Inst Power Engn, D-01062 Dresden, Germany

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2014年 / 34卷 / 15期

关键词：

Y2O3-Al2O3-SiO2; system; High temperature long heat treatments; X-phase; CRYSTALLIZATION; GLASSES;

D O I：

10.1016/j.jeurceramsoc.2014.05.025

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effect of high temperature long heat treatments on the microstructure of the eutectic glass composition in the Y2O3-Al2O3-SiO2 system was examined. The qualitative and quantitative phase analyses were conducted by using scanning electron microscopy combined with energy dispersive analysis and electron microprobe. Simultaneous thermal analyses were carried out to determine the transition temperatures and enthalpies. The crystallization behavior of these glasses was monitored with X-ray powder diffraction. A needle like X-phase was observed in the structure of this eutectic composition after long heat treatment at 1350 degrees C. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：3835 / 3840

页数：6

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