EFFECTS OF Pb COMPOUND ADDITIVES ON THE PROPERTIES OF YBa_2Cu_3O_(7-δ)
EFFECTS OF Pb COMPOUND ADDITIVES ON THE PROPERTIES OF YBa_2Cu_3O_(7-δ)作者机构:SchoolofMaterialandMetallurgyNortheasternUniversityShenyang110004China MyongjiUniversityYongjin449-728SouthKorea
出 版 物:《Acta Metallurgica Sinica(English Letters)》 (金属学报(英文版))
年 卷 期:2005年第18卷第2期
页 面:145-148页
核心收录:
学科分类:080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 080502[工学-材料学]
主 题:YBa2Cu3O7-δ PbO additive melting temperature superconductivity
摘 要:The melting temperature and critical transition temperature Tc of YBa2Cu3O7-δ with deferent content additives of PbO and BaPbO3 were studied. When PbO was doped in YBa2Cu3O7-δ, the melting temperature of YBa2Cu3O7-δ was reduced, however its superconductivity was weakened. From the XRD pattern of the sintered mixture of YBa2Cu3O7-δ and PbO, it was known that there was a reaction between YBa2Cu3O7-δ and PbO, and the product was BaPbO3. Hence different contents of BaPbO3 (10mass%, 20mass% and 30mass%) were added in YBa2Cu3O7-δ. It was proved that there were no reactions between YBa2Cu3O7-δ and BaPbO3. And the superconductivity of the mixtures was much better than that of the samples with PbO additive.