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作为荧光粉原料的氧化铝的制备及其形貌控制
作者:董岩 蒋建清 刘刚 梁超 孙明涛 
单位:东南大学材料科学与工程系 东南大学材料科学与工程系 江阴加华新材料资源有限公司 东南大学材料科学与工程系 东南大学材料科学与工程系 南京210096  南京210096  江苏 江阴 214444   南京210096  南京210096 
关键词:碳酸铝铵  荧光粉  前驱体  氧化铝  比表面积 
分类号:TF123
出版年,卷(期):页码:2004,32(4):393-397
DOI:
摘要:
通过控制铝盐与碳酸氢铵溶液的沉淀反应条件,制备出结晶碳酸铝铵前驱体。通过加入晶体生长促进剂等方法改善氧化铝颗粒的大小及形貌。结果表明:适宜的沉淀条件是获得结晶碳酸铝铵沉淀的关键。晶体生长促进剂对氧化铝颗粒的大小和形貌影响很大,适量加入晶体生长促进剂可以获得大小均匀、外形规则的六角形氧化铝分散颗粒,其大小约为1~2μm,比表面积约为2m2·g-1,是较为理想的荧光粉原料。
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Crystalline ammonium aluminum carbonate hydroxide(AACH) precursor was synthesized by controlling precipitation reaction conditions. αAl_(2)O_(3 ) powder as a raw material of phosphor was prepared by the precursor calcinated at (1 200 ℃). The particle size and shape of αAl_(2)O_(3) were improved by adding crystal growing accelerant agent. The results show that the proper precipitation reaction conditions are a key factor in synthesizing crystalline AACH, and the crystal growing accelerant agent plays a very important role in controlling the particle size and shape of αAl_(2)O_(3). The regular hexagonal Al_(2)O_(3) particles with homogeneous particle size of 1—2 μm and the specific surface of 2 m~(2)·g ~(-1)were prepared. It is an ideal raw material for making phosphor.
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基金项目:
江苏省高技术(BG2001005;BG2002024)资助项目。~~
作者简介:
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参考文献:
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