HAN Lei, LI Mei, LIU Zhaogang, WANG Mitang, HU Yanhong, TAO Bao
（a. School of Materials and Metallurgy; b. Key Laboratory of New Technologies of Modern Metallurgy and Application of Rare Earth Materials, Inner Mongolia University of Science and Technology, Baotou 014010, China)
Abstract： The precursor of CeO2-SiO2 composite polishing powders was obtained by the method of spray drying with cerium carbonate as cerium resource and silicon soliquid as silicon resource. The composite polishing powders were obtained by calcining. XRD, SEM, laser particle sizer, zeta potential analyzer were used to characterize the crystal structure, surface morphology, particle size and zeta potential. The polishing effect of composite polishing powdes was studied. The results show that SiO2within composite polishing powders can completely dope in CeO2 when the mass ratio of cerium oxide to silicon oxide is larger than 2∶1, and the polishing effect of composite polishing powders is better than that of CeO2 and SiO2. When the mass ratio of cerium oxide to silicon oxide is 4:1, the particle size of the powders is 0.985 μm, the burnishing mass is 0.296 0 g, the superficial scratches are few, and the polishing effect of composite polishing powder achieves the best.
Keywords: spray drying; doping; composite polishing powder; polishing
中图分类号：TQ133.3 文献标志码：A
文章编号：1008-5548( 2015)03-0016-05
DOI:10.13732/j.issn.1008-5548.2015.03.004
收稿日期：2014-09-12， 修回日期：2014-09-29，在线出版时间：2015-06-24。
基金项目：国家杰出青年科学基金项目，编号：51025416；教育部创新团队项目， 编号：IRT1065； 内蒙古自治区自然科学基金项目， 编号：2012MS0206；内蒙古自治区高等学校“创新团队发展计划”项目，编号：NMGIRT1104。
第一作者简介：韩磊（1990—），男，硕士研究生，研究方向为稀土抛光粉。E-mail ：89119924@qq.com。
通信作者简介：李梅（1965—），女，博士，教授，研究方向为稀土冶金与材料。 E-mail ：limei@imust.cn。
