Preparation of scandia stabilized zirconia powder using microwave-hydrothermal method
来源期刊:JOURNAL OF RARE EARTHS2015年第7期
论文作者:敖红敏 刘向生 张赫 周静 黄小卫 冯宗玉 徐宏
文章页码:746 - 751
摘 要:Scandia stabilized zirconia powder(Sc SZ) was first synthesized by a microwave-hydrothermal method. The crystalline and aggregated particle sizes were investigated by means of X-ray diffraction(XRD), Raman, scanning electron microscopy(SEM) and transmission electron microscopy(TEM). Weakly agglomerated and well crystallized Sc SZ powder was prepared by microwave-heating to 150 oC and 2.5 h. The structure of the Sc SZ powder changed from a tetragonal to a cubic phase, and accordingly, the powder conductivity was increased from 90.55 to 120.56 ms/cm by the introduction of the mineralizer solutions(KOH+K2CO3) during the microwave-hydrothermal processing.
敖红敏,刘向生,张赫,周静,黄小卫,冯宗玉,徐宏
Grirem Advanced Materials Co., Ltd., National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals
摘 要:Scandia stabilized zirconia powder(Sc SZ) was first synthesized by a microwave-hydrothermal method. The crystalline and aggregated particle sizes were investigated by means of X-ray diffraction(XRD), Raman, scanning electron microscopy(SEM) and transmission electron microscopy(TEM). Weakly agglomerated and well crystallized Sc SZ powder was prepared by microwave-heating to 150 oC and 2.5 h. The structure of the Sc SZ powder changed from a tetragonal to a cubic phase, and accordingly, the powder conductivity was increased from 90.55 to 120.56 ms/cm by the introduction of the mineralizer solutions(KOH+K2CO3) during the microwave-hydrothermal processing.
关键词: