Preparation method of rare earth barium copper oxygen high-temperature superconducting film
A rare earth barium copper oxide, high temperature superconducting technology, applied in the field of high temperature superconducting materials, can solve problems such as difficulties
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[0017] The present invention will be further described below with reference to the accompanying drawings and in combination with preferred embodiments.
[0018] The present invention provides a method for preparing a rare earth barium copper oxide high temperature superconducting film. In one embodiment, the method includes the following steps:
[0019] a) Weigh the rare earth metal salt, barium salt, copper salt and doping element compound in proportion and disperse them in the solvent, and obtain a uniform precursor after stirring. Can generate oxides of doping elements;
[0020] b) coating the precursor on the substrate to form a precursor film;
[0021] c) Put the precursor film into a heat treatment furnace, feed a high-purity oxygen flow at a flow rate of 0.1 m / min to 10 m / min as a heat treatment atmosphere, and raise the temperature of the furnace at a rate of 1 °C / min to 1500 °C / min Rise to 300°C-650°C in minutes and keep warm for 0-5 hours, and increase the introduc...
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