| 共沉淀法合成La_(0.9)Sr_(0.1)Ga_(0.8)Mg_(0.2)O_(3-δ)及其性质的研究 |
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| 引用本文： | 赫文秀,安胜利,张永强,秦瑾.共沉淀法合成La_(0.9)Sr_(0.1)Ga_(0.8)Mg_(0.2)O_(3-δ)及其性质的研究[J].材料导报,2009,23(24). |
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| 作者姓名： | 赫文秀 安胜利 张永强 秦瑾 |
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| 作者单位： | 1. 内蒙古科技大学化学与化工学院,包头,014010;北京科技大学冶金与生态工程学院,北京,100083
2. 内蒙古科技大学化学与化工学院,包头,014010 |
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| 摘 要： | 采用共沉淀法合成了具有钙钛矿结构的中温固体电解质La_(0.9)Sr_(0.1)Ga_(0.8)Mg_(0.2)O_(3-δ)(LSGM),并用DTA-TGA和X射线衍射仪分析了LSGM材料中钙钛矿相的形成过程,采用SEM、交流阻抗谱等检测技术对LSGM电解质的结构及性能进行了表征.XRD分析结果表明,1200℃烧结后,粉体开始形成钙钛矿结构,随温度的升高粉体中杂相含量越来越少,于1450℃时形成了单一的钙钛矿相结构.
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| 关 键 词： | 共沉淀 固体电解质 离子电导率 |
Synthesis and Characterization of La_(0.9)Sr_(0.1)Ga_(0.8)Mg_(0.2)O_(3-δ) by Coprecipitation |
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| HE Wenxiu,AN Shengli,ZHANG Yongqiang,QIN Jin.Synthesis and Characterization of La_(0.9)Sr_(0.1)Ga_(0.8)Mg_(0.2)O_(3-δ) by Coprecipitation[J].Materials Review,2009,23(24). |
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| Authors: | HE Wenxiu AN Shengli ZHANG Yongqiang QIN Jin |
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| Abstract: | The intermediate-temperature solid electrolyte with perovskite-type La_(0.9)Sr_(0.1)Ga_(0.8)Mg_(0.2)O_(3-δ)(LSGM)is synthesized using coprecipitation.The forming process of the perovskite phase in LSGM material is analyzed by means of DTA-TGA and X-ray diffractometer,the microstructure and features are tested by analysis SEM and AC impedance methods.XRD patterns indicate that perovskite phase exists after the materials is sintered at 1200℃,with the temperature increasing,the impurity become less,the powder has pure perovskite phase when the mixed materials are sintered at 1450℃. |
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| Keywords: | La_(0 9)Sr_(0 1)Ga_(0 8)Mg_(0 2)O_2 85 coprecipitation La_(0 9)Sr_(0 1)Ga_(0 8)Mg_(0 2)O_2 85 solid electrolyte ionic conductivity |
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