THE ZnO powder （micro-crystallites）, an important functional material, has a wide applica-tion in the fields of ceramics, coatings and electronic devices. However, the powder, usuallyobtained by calcination of zinc ...THE ZnO powder （micro-crystallites）, an important functional material, has a wide applica-tion in the fields of ceramics, coatings and electronic devices. However, the powder, usuallyobtained by calcination of zinc oxalate, has a wide particle-size distribution and poor sinteringactivities so various methods for its preparation have been developed. The hydrothermalmethod is widely used to prepare many superfine powders such as ZrO<sub>2</sub>, BaTiO<sub>3</sub>, PLZT, dueto many advantages compared with other methods. Recently, the powder of Ⅱ—Ⅵ com-pounds can also be prepared by this method. Furthermore, crystallite shapes may be consid-展开更多
文摘THE ZnO powder （micro-crystallites）, an important functional material, has a wide applica-tion in the fields of ceramics, coatings and electronic devices. However, the powder, usuallyobtained by calcination of zinc oxalate, has a wide particle-size distribution and poor sinteringactivities so various methods for its preparation have been developed. The hydrothermalmethod is widely used to prepare many superfine powders such as ZrO<sub>2</sub>, BaTiO<sub>3</sub>, PLZT, dueto many advantages compared with other methods. Recently, the powder of Ⅱ—Ⅵ com-pounds can also be prepared by this method. Furthermore, crystallite shapes may be consid-
