| Sol－Gel法制备YBa_2Cu_3O_（7－x）超细粉末研究 |
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| 引用本文： | 袁启华,唐福龙,雷家珩.Sol－Gel法制备YBa_2Cu_3O_（7－x）超细粉末研究[J].武汉理工大学学报,1994(1). |
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| 作者姓名： | 袁启华 唐福龙 雷家珩 |
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| 作者单位： | Yuan Qihua;Tang Fulong;Lei Jiaheng(Research Institute of Sophisticated Materials，WUT) (Dept. of Material Engineering，WUT) |
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| 基金项目： | 材料复合新技术国家实验室资助 |
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| 摘 要： | 用柠檬酸盐作螯合剂，用氨水调节溶液的酸度，通过Ｓｏｌ－Ｇｅｌ转变制得了粒径为１００ｎｍ大小的ＹＢａ２Ｃｕ３Ｏ（７－ｘ）超细粉末，对ＹＢａ２Ｃｕ３Ｏ（７－ｘ）在合成反应中溶胶的形成和凝胶聚合过程进行了研究和探讨。Ｓｏｌ－Ｇｅｌ法制得的ＹＢａ２Ｃｕ３Ｏ（７－ｘ）超细粉末在粒度、纯度、烧结特性和超导性能上，均优于固态反应合成方法。
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| 关 键 词： | Sol－Gel法 YBa_2Cu_3O_（7－x） 超细粉 |
Study on Preparation of YBa_2Cu_3O_(7-x) Ultrafine Powders by Sol-Gel Process |
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| Yuan Qihua,Tang Fulong,Lei Jiaheng.Study on Preparation of YBa_2Cu_3O_(7-x) Ultrafine Powders by Sol-Gel Process[J].Journal of Wuhan University of Technology,1994(1). |
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| Authors: | Yuan Qihua Tang Fulong Lei Jiaheng |
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| Abstract: | The ultrafine powders of YBa2Cu3O7-x with size of 100urn were synthsizedusing citrate as complex and ammonium hydroxide to adjust pH of solutions by Sol--Gelprocess. The mechanism of Sol--Gel synthetic reaction of YBa2Cu3O7-x phase ultrafine Powders was studied. The Particle size. purity, sintering activity and superconducting properties of YBa2Cu3O7-x Prepared by Sol-Gel method were better than by solid state reaction. |
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| Keywords: | Sol-Gel Process YBa2 Cu3 O7-x ultrafine powders |
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