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TFA-MOD技术制备YBCO超导层的热解机理研究

The Mechanism of Thermal Decomposition of YBCO Films Prepared by TFA-MOD Technique

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【Author】 Jin Lihua 1,2,Lu Yafeng 1,2,Wang Pengfei 2,3,Zhang Guofang 3,Zhang Yun 2,Wang Yao 2,Li Chengshan 2(1.Shaanxi University of Science and Technology,Xi’an 710021,China)(2.Northwest Institute for Nonferrous Metal Research,Xi’an 710016,China)(3.Key Laboratory of Applied Surface and Colloid Chemistry,Ministry of Education,Shaanxi Normal University,Xi’an 710062,China)

【机构】陕西科技大学；西北有色金属研究院；应用表面与胶体化学教育部重点实验室,陕西师范大学；

【摘要】采用TG-DSC、原位红外、XRD等研究YBCO-TFA前驱溶液的热解行为,结果表明:在230～320℃区间YBCO-TFA前驱体的热解产物为BaF2、CuO、Y2O3、YBaF及其他非晶态物质。并给出了TFA-MODYBCO胶体的整个分解反应历程和机理的分析,有利于热解工艺的优化并实现高性能涂层导体的制备。更多还原

【Abstract】 The thermal decomposition behavior of YBCO-TFA precursors was investigated by thermogravimetric and differential scanning calorimetry analysis(TG-DSC),in-situ Fourier transform infrared spectroscopy(FT-IR) and X-ray diffraction analysis(XRD).The results show that the thermal decomposition of YBCO-TFA precursors occurred mainly in the range of 230～250℃,and the residues were identified as BaF2,CuO,Y2O3,YBaF and other unidentified noncrystalline materials.The studies of the mechanism of thermal decomposition are beneficial to optimize the thermal decomposition processes and to achieve high critical current YBCO coated conductors.更多还原

【关键词】 YBCO； TFA-MOD；热解；
【Key words】 YBCO； TFA-MOD； thermal decomposition；

【基金】国家“863”计划项目(2009AA03Z203)

【文献出处】稀有金属材料与工程 ,Rare Metal Materials and Engineering , 编辑部邮箱 ,2012年08期

【分类号】TM26
【被引频次】5
【下载频次】129

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