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The Effect of Mineralizers on Synthesis of Perovskite-Phase Lanthanum Aluminate Powders Wang Xiu-hui1,2,a, Zhao Guo-quan2,b, Zhao Yan-min2,c, Gao Hong2,d and Yang Jin-long1,e 1Department of Materials Science and Engineering, State Key Lab of New Ceramics and Fine Processing, Tsinghua University, Beijing 10084, China; 2Liaoning Key Lab for fabrication and Application of Super-fine Inorganic Powders, Jiaotong University, Dalian, Liaoning 116028, China adl_wangxh@djtu.edu.cn,breddevils.utd@gmail.com,czhao.1@hotmail.com,dtaoci@djtu.edu.cn,ejlyang@mail.tsinghua.edu.cn1 Keywords: perovskite-phase lanthanum aluminate; solid-reaction; mineralizer; additive; synthesize.
Abstract: The solid-reaction was applied to synthesize perovskite-phase Lanthanum Aluminate powders by using AlOOH and La2(C2O4)3 as raw materials, mineralizer AlCl3 and AlF3 as the additives, graund and mixed, then calcined at 800℃ and 1200℃ for 3 h.
Introduction The perovskite-phase lanthanum aluminate crystal (LaAlO3 ) possess of low dielectric constants and dielectric loss, and it is lattice-matched to many perovskite structure materials.
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