Alumina phase transition and morphology development in a flux by adding silica

作者：Tan Hongbin^*

来源：Journal of Ceramic Processing Research, 2012, 13(6): 767-769.

• Flux
• Preparation
• Plate-like alpha-Al2O3
• Silica

Well developed plate-like alpha-Al2O3 particles were obtained in NaCl-KCl by sintering at 1000 degrees C for 4 h, using Al(OH)(3) powder as the starting material. The influence of silica on the phase transition and morphology development were examined. When silica was added, the main phase was gamma-Al2O3 in the sample by sintering at 1000 degrees C, and mutinaite, SiO2 and gamma-Al2O3 phases were observed in the sample by sintering at 1200 degrees C. Some abnormal particles were observed in the sample with Si added by sintering at 1000, 1100 and 1200 degrees C.

• 出版日期2012
• 单位陕西理工大学