Preparing Process and Sintering Behavior of Nano LaAlO3 Powders

Abstract

Abstract: Preparing process and sintering behavior of nano LaAlO₃ powders were investigated. The coprecipitation method was applied to synthesize nano LaAlO₃ powders. By using La(NO₃)₃ and Al(NO₃)₃ as raw materials and keeping pH≈9, the coprecipitation process can be finished at room temperature. Pure LaAlO₃ nano powders with a size of about 50nm can be obtained after calcining at 800℃ for 2h. After dry pressing with a pressure of 300MPa, the nano LaAlO₃ powders can be sintered at 1500℃ for 4h, and a high density of about 6.2g/cm³ reached.

Key words: LaAlO₃, nano, powder, sinter

CLC Number:

TF123

LI Wei,ZHUO Ming-Wen,SHI Jian-Lin,WANG Yi-Lin,KAN Yan-Mei,WANG Ling. Preparing Process and Sintering Behavior of Nano LaAlO₃ Powders[J]. Journal of Inorganic Materials.

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Preparing Process and Sintering Behavior of Nano LaAlO₃ Powders

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