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《Journal of the Chinese Ceramic Society》 2006-09
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TANG Jianlan, ZHU Mankang, ZHONG Tao, HOU Yudong, WANG Hao, YAN Hui (The College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China)  
Fine powders of pure perovskite Pb(Fe1/2Nb1/2)O3 (PFN) were prepared successfully by the co-precipitation method and using the raw material of Nb2O5 changed into a water-soluble species through the chemical chelation as the Nb source. Aqueous am- monia was used to modulate the pH of the solution to realize the simultaneous precipitations of hydroxides of Nb5+, Fe3+, and Pb2+ ions. The experiment results show that the perovskite phase occurs at a low temperature of 400 ℃ in the calcination of the precipita- tion product. X-ray diffraction and Raman scattering spectra results show that pure perovskite PFN powder was synthesized at 800 ℃. Scanning electron microscopy observation shows that the powder has a cube-like shape and nanoscale grain size of 300—500 nm
【Fund】: 国家自然科学基金(No.60576012)资助项目
【CateGory Index】: TB383.3
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