硅酸盐学报

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。

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.

基金项目：

江苏省高技术(BG2001005;BG2002024)资助项目。~~

作者简介：

参考文献：

[1]　SHOZOO,KITAMURAK,TERUAKIS,etal.FiringtechniqueforpreparingaBaMgAl10O17∶Eu2+phosphorwithcontrolledparticleshapeandsize[J].JElectrochemSoc,1999,146(1):392—399. [2]　尹继先,周雪珍,彭德院,等.稀土铝酸盐蓝色荧光粉前驱体的制备及其应用[J].中国稀土学报,2002,20(6):601—604.YINGJixian,ZHOUXuezhen,PENGDeyuan,etal.JChinRareEarthSoc(inChinese),2002,20(6):601—604. [3]　BYUNGSoofeon,GUOYoung,YOUNGKilyoo,etal.SphericalBaMgAl10O17∶Eu2+phosphorpreparedbyacrosolpyrolysistechniqueforPDPapplications[J].JElectrochemSoc,2001,148(9):128. [4]　KIMCH,KWONIE,PARKCH,etal.Phosphorforplasmadisplaypanels[J].JAlloyCompd,2000,311:31—39. [5]　TONEJCA,TONEJCAM,BAGOVICD.ComparisonofthetransformationsequencefromγAlOOH(boehmite)toαAl2O3(corundum)inducedbyheatingandbyballmilling[J].MaterSciEng,1994,A181A182:1227—1231. [6]　KUMAGAIM,MESSINGGL.Controlledtransformationandsinteringofaboehmitesolgelbyαaluminaseeding[J].JAmCeramSoc,1985,68(9):500—505. [7]　杨晔,吴玉程,李勇,等.碳酸铝铵低温热分解制备αAl2O3超细粉末[J].过程工程学报,2002,2(4):325—329.YANGYe,WUYucheng,LIYong,etal.ChinJProcessEng(inChinese),2002,2(4):325—329.

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