Phase Equilibria for the MnO-SiO2-Ti2O3 System
Phase Equilibria for the MnO-SiO2-Ti2O3 System
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DOI：
10.2355/isijinternational.36.suppl_s26
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发表时间：
1996-12
影响因子：
1.8
通讯作者：
Hiroshige Amitani;Kazuki Morita;N. Sano
中科院分区：
文献类型：
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作者：
Hiroshige Amitani;Kazuki Morita;N. Sano
用化学平衡技术研究了MnO-SiO_2-Ti_2O_3系在1773和1573K下的等温相关系。Ti2O_3的溶解度分别为30~40质量%和20~33质量%。在MnO-Ti2O3二元系中，X射线衍射证实了2MnO·TiOx的存在。研究了MnO-SiO_2-TiO_2系在1773K时的等温相关系，以及在1573~1773K温度范围内MnO-SiO_2-TiO_2系中SiO_2-TiO_2双饱和组成与温度的关系，讨论了2MnO·TiO_x中Ti4+/Ti3+比与氧分压(PO2=3.37×10~(-18)~1.94×10~(-13)atm)的关系。
Isothermal phase relations for the MnO-SiO2-Ti2O3 system were investigated at 1 773 and 1 573 K by a chemical equilibration technique. The solubility of Ti2O3 was found to be 30 to 40 mass% and 20 to 33 mass%, respectively. In the MnO-Ti2O3 binary system, the existence of 2MnO·TiOx was confirmed by X-ray diffraction. Isothermal phase relations for the MnO-SiO2-TiO2 system were also investigated at 1 773 K, as was the dependence of the SiO2-TiO2 doubly saturated composition in the MnO-SiO2-TiO2 system on temperature from 1 573 to 1 773 K. The dependence of Ti4+/Ti3+ ratio in 2MnO·TiOx on oxygen partial pressure (PO2=3.37×10-18 to 1.94×10-13 atm) is discussed.