日本金属学会誌

J. Japan Inst. Metals, Vol. 51, No. 3 (1987),
pp. 201-207

Behaviour of M2O3 in Silicate Melts in the Composition Range of Molar Ratio M2O3/MeO>1

Kazuichi Mizoguchi1, Koichiroh Maemura2, Masahiro Yamane1 and Yukio Suginohara1

1Department of Metallurgy, Kyushu Institute of Technology, Kitakyushu
2Graduate Student, Kyushu Institute of Technology, Kitakyushu. Present address: RICOH COMPANY, LTD., Tokyo

Abstract:

The viscosities of Li2O-SiO2-Ga2O3 and BaO-SiO2-Ga2O3 melts were measured in order to clarify the behaviour of M2O3 in the composition range of molar ratio M2O3/MeO>1, and the viscosity data on each gallosilicate were arranged using the parameter Pη (1) and Pη (2) corresponding to the composition ranges of molar ratio M2O3/MeO≤1 and M2O3/MeO≥qq1, respectively.
The parameter Pη (1) and Pη (2) are expressed by


(Received 1986/7/19)

Keywords:

viscosity, amphoteric oxide, aluminosilicate, gallosilicate, coordination of Al3+ and Ga^3+ ions


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