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低溫燃燒合成La0.9Sr0.1Ga0.8Mg0.2O2．85固體電解質(zhì)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:

    低溫燃燒合成工藝結(jié)合了溶液法和高溫自蔓延合成超細(xì)粉末工藝的特點，可以在較低的溫度下引發(fā)化學(xué)反應(yīng)，并利用反應(yīng)自身的放熱效應(yīng)維持反應(yīng)的繼續(xù)進(jìn)行。在硝酸鹽．檸檬酸體系中用該工藝直接合成了比表面積超過120m^2／g的La0.9Sr0.1Ga0.8Mg0.2O2.85固體電解質(zhì)超細(xì)粉末。研究了硝酸鹽溶液起始濃度和pH值對產(chǎn)物性能的影響。

    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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堯巍華 張中太 唐子龍 羅紹華.低溫燃燒合成La0.9Sr0.1Ga0.8Mg0.2O2．85固體電解質(zhì)粉末[J].稀有金屬材料與工程,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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