EFFECT OF VANADIUM OXIDES ON CRYSTALLISATION OF SILICATE GLASSES

被引：16

作者：

WILLIAMSON, J

TIPPLE, AJ

ROGERS, PS

机构：

[1] Nuffield Research Group in Extraction Metallurgy, Imperial College, London

来源：

JOURNAL OF MATERIALS SCIENCE | 1969年 / 4卷 / 12期

关键词：

D O I：

10.1007/BF00549846

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of vanadium oxides as catalysts for nucleation and crystal growth in CaO-MgO-Al2O3-SiO2 glasses has been investigated. The effect of varying the total vanadium content and the ratio of oxidised to reduced vanadium ions has been observed. No internal nucleation was observed, but the rate of growth of crystals of anorthite and wollastonite from the surface was increased by additions of V2O5 and V2O3. The values of the growth rates and the analysed V5+ content in both oxidised and reduced glasses suggest that V5+ ions are the most active species. Increasing concentrations of V2O5 in the glass gave maxima in the growth rates between 2 and 4 wt % for crystallisation temperatures between 900 and 980° C. © 1969 Chapman and Hall Ltd.

引用

页码：1069 / +

页数：1

共 11 条

[1] OXIDATION-REDUCTION EQUILIBRIA IN IRON-CONTAINING GLASS [J].