Effect of P2O5 on evolution of microstructure of MgO-Al2O3-SiO2 glass ceramics

被引：10

作者：

Cao, J. W. ^{[1
]}

Li, Y. H. ^{[1
]}

Liang, K. M. ^{[1
]}

机构：

[1] Tsinghua Univ, Key Lab Adv Mat, Minist Educ, Dept Mat Sci & Engn, Beijing 100084, Peoples R China

来源：

ADVANCES IN APPLIED CERAMICS | 2009年 / 108卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Volume crystallisation; MAS glass ceramics; P2O5; Cordierite; THICK-FILM DIELECTRICS; MECHANICAL-PROPERTIES; PHASE-TRANSFORMATION; CORDIERITE POWDERS; CRYSTALLIZATION; KINETICS; B2O3;

D O I：

10.1179/174367609X413955

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：

MgO-Al2O3-SiO2 (MAS) cordierite based glass ceramics were prepared by volume crystallisation. X-ray diffraction, Scanning electron microscopy and Energy diffraction scanning were used to investigate crystallisation behaviour and the influence of P2O5 on microstructure MAS based glass ceramics. The results showed that P5+ could promote the phase separation of MAS glass and that the glass was divided into two areas, such as Mg4Al2Ti9O25 and the containing P5+ area at, 900 degrees C. Mg4Al2Ti9O25 and Mg-3(PO4)(2) in the area were both advantageous to the precipitation of mu cordierite, which further transformed to alpha cordierite due to P5+ in the residual glassy phase. However, P5+ inhibited the presence of cordierite when the heat treatment temperature was >900 degrees C.

引用

页码：352 / 357

页数：6

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