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Thick films of ybasb2/sbcusb3/sbo sb7-y/sb and preparation method thereof
Thick films of ybasb2/sbcusb3/sbo sb7-y/sb and preparation method thereof
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机译:yba 2 sb> cu 3 sb> o 7-y sb>的厚膜及其制备方法
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摘要
The invention relates to a method of preparing thick films of YBa2Cu3O7-y(y=0.08) having a critical current density of the order of 106 A/cm2. The inventive method comprises using an inert carrier gas to send an aerosol, obtained from an aqueous solution of precursors of yttrium nitrate, barium nitrate and copper nitrate (0.11=FY=0.28, 0.46=FBa=0.58, 0.2=FCu=0.37), having a concentration which is essentially equal to the concentration at saturation, to the surface of a heated substrate whereon it undergoes pyrolysis for between 1 and 5 nm at 800° C. and 870° C., followed by oxygen annealing at a temperature which is greater than the pyrolysis temperature by at least 10° C. and between 850° C. and 880° C. for between 1 and 2 hours, and subsequently at 450° C.-550° C. for between 0.5 and 1.5 hours.
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机译:本发明涉及一种制备具有临界电流密度的YBa 2 Sub> Cu 3 Sub> O 7-y Sub>(y = 0.08)厚膜的方法数量级为10 6 Sup> A / cm 2 Sup>。本发明的方法包括使用惰性载气来输送气溶胶,该气溶胶是从硝酸钇,硝酸钡和硝酸铜的前体水溶液(0.11 = FY = 0.28,0.46 = FBa = 0.58,0.2 = FCu = 0.37)获得的,在加热的基材表面上,其浓度基本上等于饱和浓度,在800°C至870°C上对其进行热解1至5 nm,然后在比热解温度高至少 10 B>°C并且在850°C和880°C之间持续1-2小时,随后在450°C -550°C下保持在0.5到1.5小时之间。
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