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低温燃烧合成La0.9Sr0.1Ga0.8Mg0.2O2.85固体电解质粉末
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TQ174.75

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Preparation of La0.9Sr0.1Ga0.8Mg0.2O2.85 Ultrafine Powder by Low Temperature Combustion Synthesis
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    摘要:

    低温燃烧合成工艺结合了溶液法和高温自蔓延合成超细粉末工艺的特点,可以在较低的温度下引发化学反应,并利用反应自身的放热效应维持反应的继续进行。在硝酸盐.柠檬酸体系中用该工艺直接合成了比表面积超过120m^2/g的La0.9Sr0.1Ga0.8Mg0.2O2.85固体电解质超细粉末。研究了硝酸盐溶液起始浓度和pH值对产物性能的影响。

    Abstract:

    Low temperature combustion synthesis (LTCS) combines the advantage of solution-based processing with that of high temperature self-propagation. The process can be ignited at low temperature and is sustained by a strong exothermic reaction. As presently described the LTCS process was applied to directly synthesize La0.9Sr0.1Ga0.8Mg0.2O2.85 (LSGM1020) ultra-fine powder in nitrate-citric acid solution. The LSGM1020 powder prepared by this method has specific surface area as high as 120 m2/g. The effect of solution initial concentration and pH value on the properties of the final powder was investigated.

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尧巍华 张中太 唐子龙 罗绍华.低温燃烧合成La0.9Sr0.1Ga0.8Mg0.2O2.85固体电解质粉末[J].稀有金属材料与工程,2004,33(4):421~424.[Yao Weihua, Zhang Zhongtai, Tang Zilong, Luo Shaohua. Preparation of La0.9Sr0.1Ga0.8Mg0.2O2.85 Ultrafine Powder by Low Temperature Combustion Synthesis[J]. Rare Metal Materials and Engineering,2004,33(4):421~424.]
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  • 最后修改日期:2002-08-26
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