摘要
以SiO2颗粒为内核,通过均相沉淀法制备出包覆结构的CeO2@SiO2复合磨料,研究了CeO2的含量、反应时间、煅烧温度对制备CeO2@SiO2复合磨料的影响.结果表明:六水硝酸亚铈的加入量为7.02g时,复合磨料包覆均匀,分散性好,粒谷大小合适;反应时间为2h时,复合磨料的结构基本形成;煅烧温度为500℃,复合磨料的粒径分布范围小,形状呈圆形.并通过X射线衍射仪(XRD)、纳米激光粒度仪等对制备的样品进行了表征.
Using SiO2 as the core,the cladding structure of CeO2@SiO2 composites were prepared by homogeneous precipitation method,and the influences of CeO2 coating amount,reaction time, burning temperature on the formation of the composite abrasives were investigated.The results indicate that the composite particles were coated uniformly, dispersed perfectly, sized appropriately as 7.02 g of Ce（NO3）36H2O was used.After 2 h reaction the basic structure forms, and the particles have a narrow size distribution.The particles with sphericity was obtained at 500℃.The prepared samples were analyzed using X-ray diffraction dynamic light scattering analyzer and laser nanometer particle size analyzer.
出处
《陕西师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2014年第3期55-58,共4页
Journal of Shaanxi Normal University：Natural Science Edition
基金
国家自然科学基金资助项目(51005102)
国家自然科学基金青年基金项目(51305166)
清华大学摩擦学国家重点实验室开放基金(SKLTKE10B04)
江苏省自然科学基金资助项目(BK20130143)
中央高校基本科研业务费专项资金资助(JUDCF13028)
江苏省普通高校研究生科研创新计划项目(CXZZ13-0738)
