RO-B_2O_3 系、RO-GeO_2 系 (R=Ba, Sr, Ca, Mg) の不混和領域
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概要
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Hand-made apparatus, namely hot-thermocouple method has been applied to establish the immiscible region in RO-B_2O_3 and RO-GeO_2 systems (R=Ba, Sr, Ca, Mg). RO-B_2O_3 and MgO-GeO_2 have a two liquid regions, and the other systems have a metastable immiscibility at the temperature between liquidus and crystallization. The latter immiscibility could not be observed without hot-thermocouple method. All these immiscible region could be described by the empirical equation, in |X－X_c|＝a+b・ln|T-T_c|, where X_c is the critical composition, T_c is the critical temperature, and a and b are constant values for the system. The value of X_c, T_c, a and b in above systems have been reported.
- 九州大学大学院総合理工学研究科の論文
- 1983-06-30
九州大学大学院総合理工学研究科 | 論文
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