| Synthesis and Characterization of Pr0.6-xNdxCa0.4FeO3-δ with Pechini Method |
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| 作者姓名： | Chen Yonghong Chu Zhaorong Wei Yijun Liu Xingqin Meng Guangyao |
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| 作者单位： | [1]Center of Experiment and Communication, Huainan Normal College, Huainan 232001, China [2]Department of Materials Science and Engineering, University of Science and Technology of China, Hefei230026, China |
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| 摘 要： | Pr0.6-x NdxCa0.4 FeO3-δ （ x = 0.0, 0.2, 0.3, 0.4, 0.5, 0.6） were synthesized using Pechini method. A number of studies were conducted concerning composition, specific area, crystalline structure and microstructure of the samples by means of FT-IR, BET, XRD TG-DTA and SEM. The results show that all the samples with different doping amounts of Pr^3＋ and Nd^3＋ on A-site are fine dispersed, and mean particle size less than 100 nm. The powders have good sinterability, and the relative density is 95% after sintered at 1200 ℃ for 2 h. It is found that all specimens are entirely single phase solid solutions with orthorhombic perovskite structure, the stable perovskitetype phase is formed completely after calcination at 900 ℃.
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| 关 键 词： | Pro.6-x Nd Ca0.4FeO3-δ 稀土 钙钛矿 电导率 合成 表征 |
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