2E05 Y_2O_3-Nb_2O_5 系蛍石型固溶体の生成域とそのイオン伝導性
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概要
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The solubility limit of the C-type Y_2O_3 phase and YNbO_4 phase is 2.5 (±2.5) mol% Nb_2O_5 and 2.5 (±2.5) mol% Y_2O_3,respectively. The fluorite (F) single phase region exists from 20 to 27.5 mol% Nb_2O_5 at 1700℃, and from 21 to 27 mol% Nb_2O_5 at 1500℃, respectively. The composition for maxium conductivity in the Y_2O_3-Nb_2O_5 system was 20 mol% Nb_2O_5. In the F single phase region, the conductivity decreases from 20 to 25 mol% Nb_2O_5,while it increases with Nb_2O_5 content in the compositional region between 25 and 27 mol% Nb_2O_5.
- 1996-04-02
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