DENSITY OF GA2O3 LIQUID

被引：25

作者：

DINGWELL, DB

机构：

[1] Bayerisches Geo-Institut, Universit at Bayreuth, Bayreuth

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1992年 / 75卷 / 06期

关键词：

GALLIUM OXIDE; LIQUID PHASE; DENSITY; VOLUME; GLASS;

D O I：

10.1111/j.1151-2916.1992.tb04239.x

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：

The density of Ga2O3 liquid in equilibrium with air has been measured at 1800-degrees to 1900-degrees-C using an Ir double-bob Archimedean method. The data yield the following description of the density of Ga2O3 liquid: rho = 4.8374(84)- 0.00065(12)(T -1850-degrees-C). This density-temperature relationship is compared with the partial molar volume of Ga2O3 in glasses in the systems CaO-Ga2O3-SiO2 and Na2O-Ga2O3-SiO2, corrected to the glass transition temperature using thermal expansivities. The comparison illustrates that a positive excess volume term is required in these systems at low temperature. This observation is similar to those deduced from studies of the partial molar volumes of Fe2O3 and Al2O3 in silicate melts.

引用

页码：1656 / 1657

页数：2

共 9 条

[1] PROPERTIES OF CALCIUM, STRONTIUM, AND BARIUM GALLIOSILICATE GLASSES [J].