Tailoring sodium silicophosphate glasses containing SiO6-octahedra through structural rules and topological principles

被引：19

作者：

Jiang, Qi ^{[1
]}

Zeng, Huidan ^{[1
]}

Li, Xiang ^{[1
]}

Ren, Jing ^{[1
]}

Chen, Guorong ^{[1
]}

Liu, Fude ^{[2
]}

机构：

[1] E China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China

[2] Univ Hong Kong, Dept Mech Engn, Hong Kong, Hong Kong, Peoples R China

来源：

JOURNAL OF CHEMICAL PHYSICS | 2014年 / 141卷 / 12期

基金：

上海市自然科学基金;

关键词：

PHOSPHOSILICATE GLASSES; 6-COORDINATED SILICON; AMBIENT CONDITIONS; CONSTRAINT THEORY; FORMING LIQUIDS; LOCAL-STRUCTURE; RANGE ORDER; MAS NMR; SI; EFFICIENCY;

D O I：

10.1063/1.4896150

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

SiO4 tetrahedra in certain sodium silicophosphate glasses can be transformed into SiO6 octahedra that determine the macroscopic properties of silicophosphate glasses to a large extent. In this study, we develop the quantitative evolution rule of each network former. In addition, based on the underlying structure and topology, temperature-dependent topological constrain theory is used to elucidate the composition dependence of glass transition temperature and hardness. The properties of sodium silicophosphate glasses have been accurately predicted. These understandings will help us design new type of silicophosphate glasses containing unique SiO6 octahedra. (C) 2014 AIP Publishing LLC.

引用

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