A Polymer Complexing Route for Low Temperature Synthesis of Perovskite Lanthanum Aluminate Powder
Lanthanum aluminate powders were prepared via a polymer complexing method by using PEG as complexing agent.The LaAlO3 powder was characterized by XRD and SEM.The influence of processing parameters such as molar ratio of PEG monomers to metal cations (PEG∶Men+) and aging process on the phase purity and powder morphology were investigated.The calcined powder with the PEG∶Men+ ratio larger than 2∶1 may contain the secondary phase,namely La2O3.The formation of phase pure LaAlO3 powder occurs when the PEG∶Men+ ratio is 1∶1 or enough gelation time is involved.Although the phase pure powder is obtained by this PEG method,all the single phase LaAlO3 powders are found to have seriously aggregated particles.The weakly agglomerated powder morphology is only found in the powders which contain La2O3.
Perovskite lanthanum aluminate polymer complexing PEG
Shuai Li Bill Bergman Zhe Zhao
Department of Materials Science and Engineering, School of Industrial Engineering and Management, Ro Department of Materials Science and Engineering, School of Industrial Engineering and Management, Ro Department of Physical, Inorganic and Structural Chemistry, Arrhenius Laboratory, Stockholm Universi
国际会议
The Sixth China International Conference on High-Performance Ceramics(第六届中国先进陶瓷国际研讨会(CICC-6))
哈尔滨
英文
863-867
2009-08-16（万方平台首次上网日期，不代表论文的发表时间）