硅酸盐玻璃相分子网络聚合结构的研究

A Study of Polymerization Molecular Network Structure in Silicates Glasses Phases

采用电子探针、拉曼探针和高温高压试验等手段对Al2O3－SiO2二元系和Na2O-K2O-Al2O3-SiO2四元系玻璃相的成分、网络结构、断键程度等进行了系统研究并获得下列结论：1．无论是地质体玻璃相还是工业硅酸盐玻璃相，其分子网络结构都是由单体［SiO4］、二聚体［Si2O7］、链［SiO3］、层［SiO5］、架［Si4O9］和纯架状伯［SiO2］6种网络结构类型所组成。2．对玻璃相分子网络结构的研究有助于重溯天然岩浆结晶和演化的物理化学历史，对研究矿藏的生成条件和提高工业硅酸盐材料的性能，具有重要的意义。

In this paper, the author presents a detailed study of the component, molecular networkstructure and degree of broken bond of glasses phases in the Al2O3-SiO2 system and the Na2O-K2O-Al2O3-SiO2 system by using an electron probe, Laser Raman Molecular Microprobe and high temperatureand high pressure experiment etc. The obtained conclusions are as follow:1.No matter whether it is a glasses phases of geological body or silicates glasses phases in industrymaterial, its molecular network structure is consisted of six models. They are Monomer[SiO4], Dimer[Si2O7], Ring and chain [SiO3], Sheet[Si2O5], Frame network[Si4O9]and Pure frmae network [SiO2].2. A study of molecular network structure in glasses phases is conducive to reappear physical-chemicalhistory of natural magmatic crystallization and development. This has important significance for investigatingforming ore conditions and enhancing performance of industry silicate materials.