硅酸盐通报2024，Vol.43Issue(4)：1499-1505,7.
沉淀剂浓度对喷雾共沉淀法合成Tb2O3纳米粉体的影响
Influence of Precipitant Concentration on Tb2O3 Nanopowders Synthesized via Spray Coprecipitation Method
摘要
Abstract
Ultrafine Tb2O3 nanopowders were prepared by spray co-precipitation method combined with reduction atmosphere treatment.The influence of ammonium bicarbonate precipitant concentration on precursor phase,nanopowders microstructure,and sintering performance was investigated.The results show that the concentration of the precipitant significantly affects the microstructure,uniformity and sintering activity of the nanopowder.A low concentration of precipitant can lead to excessive growth of precipitate grains,resulting in an increase in nanopowders size and unevenness,while a excessive concentration of precipitant can cause poor soft agglomeration.The optimal precipitant concentration is 1.5 mol/L,and under this condition,ultrafine Tb2O3 nanopowders with an average particle size of about 52.45 nm can be obtained,with a particle size distribution range of 30 nm to 80 nm.The Tb2O3 transparent ceramic prepared by sintering the powder in a protective atmosphere at 1 400 ℃ and hot isostatic pressing has a linear transmittance of 76.11％at 1 064 nm.关键词
Tb2O3/喷雾共沉淀/沉淀剂浓度/纳米粉体/均匀性/气氛烧结Key words
Tb2O3/spray coprecipitation/precipitant concentration/nanopowders/homogeneity/atmosphere sintering分类
化学化工引用本文复制引用
唐宇翔,胥涛,王耀智,敬畏,梅炳初..沉淀剂浓度对喷雾共沉淀法合成Tb2O3纳米粉体的影响[J].硅酸盐通报,2024,43(4):1499-1505,7.基金项目
四川省创新人才基金(2023JDRC0015) （2023JDRC0015）
