Hot-pressing behaviours of the gel and melt-derived sodium-borosilicate glass powders

被引：7

作者：

Gunay, V

机构：

[1] Istanbul Technical University (ITU), Dept. of Metallurgical Engineering, 80626, Maslak, Istanbul

[2] Işiklar Holding A.Ş., Ambarlidere Mevkii, TRT Yolu, 80840, Ortaköy, Istanbul

来源：

CERAMICS INTERNATIONAL | 1997年 / 23卷 / 04期

关键词：

D O I：

10.1016/S0272-8842(96)00010-7

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：

Na-borosilicate glasses are used widely in glass-matrix composites which are produced by slurry or sol-gel infiltration followed by hot-pressing. The hot-pressing behaviours of the glass powders are an important parameter in the preparation of the glass-matrix composites. The densification and crystallization of the gel and melt-derived Na-borosilicate glass powders under hot-pressing were studied. Gel-derived powders crystallized faster than the melt-derived powders. Cristobalite was the crystalline phase in both powders. The crystallization of the gel and melt-derived powders inhibited the viscous sintering during hot-pressing. Viscosities of the powders were calculated at various temperatures under isothermal hot-pressing conditions. Melt-derived powders had lower viscosities then the gel-derived powders. (C) 1997 Elsevier Science Limited and Techna S.r.l.

引用

页码：291 / 296

页数：6

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