THE DEPENDENCE OF STRUCTURAL PECULIARITIES IN BINARY PHOSPHATE-GLASSES ON THEIR NETWORK MODIFIER CONTENT

被引：82

作者：

HOPPE, U ^{[1
]}

WALTER, G ^{[1
]}

KRANOLD, R ^{[1
]}

STACHEL, D ^{[1
]}

BARZ, A ^{[1
]}

机构：

[1] UNIV JENA,FAC CHEM & EARTH SCI,OTTE SCHOTT INST,D-07743 JENA,GERMANY

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1995年 / 193卷

关键词：

D O I：

10.1016/0022-3093(95)00325-8

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：

X-ray diffraction measurements were performed on four (MeO)(x)(P2O5)((1-x)) glass series, with Me = Zn, Mg, Ca, Ba, and x ranging from about 0.05 to 0.6. The parameters for the Me-O coordination sphere are determined. Abrupt changes in the ionic volume fraction are found for the glasses, with different Me ions, at certain compositions which correlate with the behaviour of the Me-O coordination sphere. These phenomena can be explained in terms of a model based on the chemical characteristics of P2O5 and on the interplay between the number of non-bridging oxygen atoms per Me cation and changes in the type of the MeO(m) polyhedron.

引用

页码：28 / 31

页数：4

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