本文關(guān)鍵詞： 含F(xiàn)的La-Ce復(fù)合氧化物 制備 噴霧干燥 形貌 拋光性能　出處：《中國(guó)稀土學(xué)報(bào)》2017年01期 　論文類型：期刊論文

【摘要】：La,Ce是豐度最高的稀土元素,主要用于催化和拋光材料。研究了從稀土鹽到含F(xiàn)的La-Ce復(fù)合氧化物的制備過(guò)程,以及La/Ce比例、氟化過(guò)程、干燥過(guò)程及焙燒溫度等對(duì)制備的含氟鑭鈰復(fù)合氧化物結(jié)構(gòu)、粒徑和形貌的影響。結(jié)果表明,用Na F 90℃氟化2 h,經(jīng)噴霧干燥,采用分段焙燒技術(shù),最終經(jīng)850℃焙燒后可制備出顆粒分布均勻、團(tuán)聚少、呈橢球形的含F(xiàn)的La-Ce鈰復(fù)合氧化物。制備的樣品用于旭硝子玻璃的研磨拋光,測(cè)得切削率0.115 mm/20 min,樣品合格率約為90%。
[Abstract]:LaCe is the most abundant rare earth element, which is mainly used for catalytic and polishing materials. The preparation process of La-Ce complex oxides from rare earth salts to F, La/Ce ratio and fluorination process were studied. The effects of drying process and calcination temperature on the structure, particle size and morphology of the prepared composite oxides of lanthanum and cerium fluoride were studied. Finally, after calcination at 850 鈩，

本文編號(hào)：1529221