STRUCTURE OF ALKALI-DITITANATE GLASSES

被引：5

作者：

UMESAKI, N ^{[1
]}

TATSUMISAGO, M ^{[1
]}

MINAMI, T ^{[1
]}

机构：

[1] UNIV OSAKA PREFECTURE,DEPT APPL MAT SCI,SAKAI,OSAKA 593,JAPAN

来源：

MATERIALS TRANSACTIONS JIM | 1995年 / 36卷 / 07期

关键词：

ALKALI-DITITANATE GLASS; RAPID QUENCHING; STRUCTURAL ANALYSIS; X-RAY DIFFRACTION; RADIAL DISTRIBUTION FUNCTION; RAMAN SPECTROSCOPY;

D O I：

10.2320/matertrans1989.36.828

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The structure of alkali-dititanate glasses Na2O . 2TiO(2) and K2O . 2TiO(2) prepared by a rapid quenching combining a thermal-image furnace and a twin roller, were investigated X-ray diffraction and Raman spectroscopy. Radial distribution function (r.d.f.) of the Na2O . 2TiO(2) glass revealed that the average coordination number of oxygens around a titanium ion is 4.1, i.e. tetrahedral TiO4 units are formed in this glass. From the Raman spectra of the alkali-dititanate glasses Na2O . 2TiO(2) and N2O . 2TiO(2), titanium ions are in four-fold coordination in the glasses studied, because there are no Raman bands below 700 cm(-1) due to octahedral TiO6.

引用

页码：828 / 834

页数：7

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