Density of Ga2O3 Liquid
نویسنده
چکیده
The density of Ga203 liquid in equilibrium with air has been measured at 1800” to 1900°C using an Ir double-bob Archimedean method. The data yield the following description of the density of Gaz03 liquid: p = 4.8374(84)0.00065(12)(T -18S0°C). This density-temperature relationship is compared with the partial molar volume of GazO3 in glasses in the systems CaO-Ga203 -SiOz and Naz0-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 Fe203 and A1203 in silicate melts. [
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