日本金属学会誌

J. Japan Inst. Metals, Vol. 38, No. 7 (1974),
pp. 658-662

Electrical Conductivity of CaO-SiO2-TiO2 Melts

Kenji Morinaga1, Yukio Suginohara2 and Tsutomu Yanagase1

1Department of Metallurgy, Faculty of Engineering, Kyushu University, Fukuoka
2Department of Metallurgy, Kyushu Institute of Technology, Kitakyushu

Abstract:

Measurements of electrical conductivity (K) of CaO-SiO2-TiO2 melts have been carried out in order to find out the effects of TiO2 in the CaO-SiO2 system. The results show that the electrical conductivity depends mainly upon the SiO2 content, that is, the contribution of TiO2 to the electrical conductivity is almost equal to that of CaO in the melts. The Ti ions in the silicate melts are considered to be located in the center of both octahedral and tetrahedral structures for oxygen. Provided that the ratio of Ti(oct.)/Ti(tetr.) can be determined by the CaO/SiO2 ratio and Ti(oct.)/Ti(tetr.) is equal to unity when the CaO/SiO2 ratio is unity, the distribution of Ti(oct.) and Ti(tetr.) present in the melts can be estimated for the entire composition range. The calculated parameter for electrical conductivity was introduced and the effects of TiO2 was discussed.


(Received 1974/02/25)

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