中文摘要：

为研究高温固相法制备锆英石微粉的最佳工艺条件,以SiO2和ZrO2粉体为原料,在1500℃条件下进行锆英石微粉的人工合成。利用X射线衍射仪对合成产物进行物相与结构分析,用扫描电子显微镜观察合成样品的微观结构。研究结果表明：SiO2和ZrO2粉体在1500℃条件下通过保温1.5h,3h,4.5h和6h均可制备出锆英石微粉,但保温4.5h和6h所制备微粉的纯度最好。利用高温固相制备方法进行锆英石微粉的工业化生产,综合考虑生产成本等相关因素,采用1500℃条件下保温4.5h的生产工艺比较合适,其样品粒度主要集中在0.2～1.5μm之间。

英文摘要：

In order to investigate the best technology of synthesizing zircon powders by the high temperature solid reaction,the authors have made synthesis experiments under 1500℃ using zirconia and silica powders as starting materials.The synthetic zircon powders are characterized by the help of X-ray diffraction and scanning electron microscopy.The results indicate that the synthesized zircon powders are found by heating SiO2 and ZrO2 for 1.5 h,3 h,4.5 h and 6h at 1 500℃.However,the ratio of transformation from zirconia and silica powders to zircon powders is the highest by heating 4.5 h and 6 h at 1 500℃.Feeling many factors like procreative cost in industrial production,it is preferable technology to synthesize zircon powders by heating 4.5 h at 1 500℃.The granularity of synthetic zircon powders mainly focuses on 0.2-1.5 μm.