ジルコンの解離温度の検討
1988 年 37 巻 423 号 p. 1372-1375
詳細
1988 年 37 巻 423 号 p. 1372-1375
The dissociation temperature of zircon was estimated to be above 1700°C by interpreting the change in standard Gibbs free energy for the formation of zircon from the oxide components ZrO2 and SiO2. Zircon dissociates into m-ZrO2 and SiO2 glass. A commercial zircon power produced by the purification of natural zircon sand dissociated at 1650 to 1700°C. On the basis of these results, it is claimed that some correction is needed in the phase diagram of ZrO2-SiO2 system.
