含氟铈基稀土抛光粉的制备及其抛光性能  

Preparation of Fluorine-Containing and Ceria-Based Rare Earth Polishing Powder and its Polishing Performance

作　　者：杨来东[1] 李梅[1] 柳召刚[1] 胡艳宏[1] 王觅堂[1] 

机构地区：[1]内蒙古科技大学材料与冶金学院,内蒙古自治区稀土现代冶金新技术与应用重点实验室,内蒙古包头014010

出　　处：《有色金属（冶炼部分）》2013年第4期45-48,共4页Nonferrous Metals（Extractive Metallurgy)

基　　金：国家自然科学基金资助项目(201066010);国家杰出青年基金项目(51025416);教育部创新团队项目(IRT1065);内蒙古自然科学基金项目(2012MS0206);内蒙古自治区高等学校创新团队发展计划(NMGIRT1104)

摘　　要：以碳酸镧铈为前驱体,采用氢氟酸氟化、高温焙烧、机械搅拌磨的方法制备中位粒径较小的含氟铈基稀土抛光粉。结果表明,所得产物中固溶体具有立方萤石结构;随着氟掺杂量的增加,开始析出四方结构的LaOF相,CeO2的XRD特征峰向右偏移,结晶度提高,粉体的振实密度随之增大;对光学玻璃的抛光能力在氟掺杂量为6%时出现极大值,被抛光物体的表面光洁度随氟掺杂量的增大而下降。Fluorine-containing and ceria-based rare earth polishing powder with small median particle diameter was prepared with carbonate lanthanum cerium as precursor by the processes including fluorination of hydrofluoric acid, high temperature calcination, mechanical stirring and grinding. The results show that the solid solution in product has a structure of cubic fluorite. With the increase of fluorine content, LaOF phase with tetragonal structure starts to precipitate, CeOz characteristic peak shifts to right and density of powder is improved. Moreover, the polishing performance for optical glass reaches the maximum value when the fluorine content is 6%, and the surface smoothness of the material declines with the increase of fluorine content.

关 键 词：铈基稀土抛光粉 氟掺杂 形貌 表面光洁度 

分 类 号：O614.33[理学—无机化学]