节点文献
氟化镧铈抛光粉的焙烧制备及抛光性能研究
Preparation and polishing performance of lanthanum cerium fluoride polishing powder
【摘要】 采用X射线粉末衍射(XRD)、扫描电子显微镜(SEM)、原子发射光谱仪(AES)等测试技术对氟化镧铈抛光粉产物进行理化性能表征,通过无机晶体结构数据库计算产物的空间结构,用接触角测量仪、表面缺陷检测仪测定了抛光粉体的润湿性能及抛光性能。结果表明,产物均为类球状——400,500,600,700,750℃焙烧温度下得到二氧化铈(CeO2)和氟化镧(LaF3)的混合产物(CeO2+LaF3);800,850,900,950,1 000,1 050℃焙烧温度下,产物为二氧化铈(CeO2)和氟氧化镧(LaOF)的混合抛光产物(CeO2+LaOF),通过计算获得不同晶型的抛光产物的XRD图及其空间结构。用接触角测量仪获得500,850,1 000℃焙烧温度下的产物的润湿性能,用表面缺陷检测仪对500,850,1 000℃焙烧温度下的产物对玻璃表面进行抛光,发现温度为850℃的抛光效果最好。
【Abstract】 Properties of physical and chemical for lanthanum cerium fluoride polishing powder were characterized by techniques of X-ray diffraction, scanning electron microscopy. Space structures were calculated by the inorganic crystal structure database(ICSD), and wettability and polishing performance was done using contact angle measuring equipment and surface defect detector. It was found that the materials are all made up of agglomerated near-spherical particles. Below 800 ℃, the product is a mixture of cubic CeO2 and trigonal LaF3, while above 800 ℃, it is a mixture of cubic CeO2 and tetragonal LaOF. When the calcination temperature is 850 ℃, the polishing properties of the products is the best.
【Key words】 calcination preparation; X-ray diffraction; performance; structure;
- 【文献出处】 功能材料 ,Journal of Functional Materials , 编辑部邮箱 ,2024年01期
- 【分类号】TQ171.684
- 【下载频次】11