Preparation method of SrTiO3 and LaAlO3 dual-nanometer particle doping YBCO composite thin film
A nanoparticle and composite film technology, applied in cable/conductor manufacturing, usage of superconducting elements, superconducting/high-conducting conductors, etc. The effect of enhancing the bonding ability, improving the electrical conductivity, and improving the current carrying capacity
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Embodiment 1
[0025](1) Preparation of SrTiO 3 and LaAlO 3 Double nanoparticles doped YBCO composite precursor:
[0026] 1) Preparation of YBCO precursor solution: Dissolve 0.845g of yttrium acetate tetrahydrate and 1.275g of barium acetate tetrahydrate in deionized water, add 3.5ml of trifluoroacetic acid, stir in a water bath at 60°C for 3 hours, and place the resulting solution in a rotary evaporator Upward distillation, the distillation temperature is 60°C, the white powder obtained is added to anhydrous methanol to redissolve, and the precursor solution A of Y and Ba salt is obtained; 1.497g copper acetate tetrahydrate and 2.582g α-methacrylic acid are added to anhydrous methanol In , fully reflux reaction at 90°C for 3h, then carry out three distillations on a rotary evaporator, the distillation temperature is 40°C, evaporate to dryness and dissolve with anhydrous methanol to obtain Cu salt precursor solution B; mix precursor solutions A and B , distilled under low pressure at 40°C,...
Embodiment 2
[0034] (1) Preparation of SrTiO 3 and LaAlO 3 Double nanoparticles doped YBCO composite precursor:
[0035] 1) Preparation of YBCO precursor solution: Dissolve 0.845g of yttrium acetate tetrahydrate and 1.275g of barium acetate tetrahydrate in deionized water, add 3.5ml of trifluoroacetic acid, stir in a water bath at 60°C for 3 hours, and place the resulting solution in a rotary evaporator Upward distillation, the distillation temperature is 60°C, the white powder obtained is added to anhydrous methanol to redissolve, and the precursor solution A of Y and Ba salt is obtained; 1.497g copper acetate tetrahydrate and 2.582g α-methacrylic acid are added to anhydrous methanol In , fully reflux reaction at 90°C for 3h, then carry out three distillations on a rotary evaporator, the distillation temperature is 40°C, evaporate to dryness and dissolve with anhydrous methanol to obtain Cu salt precursor solution B; mix precursor solutions A and B , distilled under low pressure at 40°C...
Embodiment 3
[0043] (1) Preparation of SrTiO 3 and LaAlO 3 Double nanoparticles doped YBCO composite precursor:
[0044] 1) Preparation of YBCO precursor solution: Dissolve 0.845g of yttrium acetate tetrahydrate and 1.275g of barium acetate tetrahydrate in deionized water, add 3.5ml of trifluoroacetic acid, stir in a water bath at 60°C for 3 hours, and place the resulting solution in a rotary evaporator Upward distillation, the distillation temperature is 60°C, the white powder obtained is added to anhydrous methanol to redissolve, and the precursor solution A of Y and Ba salt is obtained; 1.497g copper acetate tetrahydrate and 2.582g α-methacrylic acid are added to anhydrous methanol In , fully reflux reaction at 90°C for 3h, then carry out three distillations on a rotary evaporator, the distillation temperature is 40°C, evaporate to dryness and dissolve with anhydrous methanol to obtain Cu salt precursor solution B; mix precursor solutions A and B , distilled under low pressure at 40°C...
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