Preparation and Characterization of Nanocrystalline CaO-ZrO₂ Powders by Microwave Pyrolysis

Abstract:

CaO(15%)-ZrO₂ nano-powders were prepared by microwave pyrolysis in a multi-model chamber at the temperature ranging from 650°C to 800°C, with the precursor processed at different reaction temperature from 0°C to 80°C by chemical co-precipitation method. XRD and SEM techniques were used to characterize the phase transition and micrograph of powders. It is found that the content of m-ZrO₂ phase decreased with the increasing of reaction temperature and pyrolysis temperature. The high dispersed and superfine nano-powders were obtained at the pyrolysis temperature of 750°C for 20 min at 80°C. And only cubic ZrO₂ phase were detected in CaO (15%)-ZrO₂ powders and the average size of the powders is about 41 nm.

• Periodical: Key Engineering Materials (Volumes 602-603)
• Pages: 97-100
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.602-603.97
• Online since: March 2014
• Authors: Bing Bing Fan*, Ke Ke Guan, Hao Chen, Xiao Xuan Pian, Chen Yang Wang, Qian Nan Mao, Li Na Miao, Fang Lei Tong, Hao Wu
• Keywords: CaO-ZrO₂ Nanopowder, Microwave Pyrolysis

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