The Preparation method of Solid electrolyte lanthanum fluoride powder

摘要

LaF_3 powder is prepared by means of three methods. The traditional precipitation of LaC1_3 with HF action, sol-gel of La (CH_3COO)_3 with NH_4F action then gel is handled by infrared furnace and microwave method of La (CO_3)_3 as La source with NH_4F action to become LaF_3 Ultra-fine powder under the action of microwave. Through the SEM photographs, it can be revealed that the powder particles are different. Precipitation particles diameter is 10 μm; sol-gel method of particle is 1 um and there are a lot of needle-like particles; microwave particles is 100nm.