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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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液相烧结制备织构(123+211)的YBa_2Cu_3O_(7-x)超导体
, PP. 87-91
Keywords: 液相烧结,YBa_2Cu_3O(7-x)(123),Y_2BaCuO_5(211),包晶转变温度,定向凝固,织构
Abstract:
用液相烧结法研究了制备名义组成(123+211)织构的YBa_2Cu_3O_(7-x)超导体在123(YBa_2Cu_3O_(7-x))粉中掺适量的211(Y_2BaCuO_5)粉消除BaCuO_2在晶界上沉积在包晶转变温度附近降低冷却速率允许有足够时间沿a—b面进行质量转移,a—b面是最快的生长面,晶粒长度受质量转移速率控制XRD,SEM,EDXA分析指出,晶粒是长条形,取向垂直于c轴,平行于表面样品123具有强织构
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