Class-ceramic formation in the ZnO-P2O5 system and the effect of silica as a nucleating agent

被引：1
|
作者：
Jordery, S [1 ]
Lee, WE [1 ]
James, PF [1 ]
机构：
[1] Univ Sheffield, Dept Mat Engn, Sheffield S1 3JD, S Yorkshire, England
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1999年 / 82卷 / 08期
关键词：
D O I：
10.1111/j.1151-2916.1999.tb02068.x
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：
Crystallization of a series of ZnO-P2O5 based glasses was investigated. ZnO-P2O5-CaO glasses could be converted most readily to glass-ceramics and crystallization of these led to formation of alpha-Zn2P2O7, alpha-CaZn2(PO4)(2), and beta-CaZn2(PO4)(2) phases. A further phase has been tentatively identified as monoclinic (Zn,Ca)(2)P2O7. The most promising glass-ceramic composition Z15 (59.4ZnO . 33P(2)O(5). 6.6CaO . 1SiO(2)) crystallized to alpha-Zn2P2O7 and beta-CaZn2 (PO4)(2), the latter phase being stabilized by the presence of SiO2 which also encouraged volume nucleation giving a fine-scale (submicrometer) microstructure.
引用
收藏
页码：2239 / 2245
页数：7
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