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中国物理学会期刊

YBa2Cu3O6+δ/BaTiO3系复合功能陶瓷特性研究

CSTR: 32037.14.aps.43.2038

A STUDY OF CERAMIC COMPOSITE OF BaTiO3/YBa2Cu3O6+δ SYSTEM

CSTR: 32037.14.aps.43.2038
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  • 报道了超导陶瓷YBa2Cu3O6+δ与铁电陶瓷BaTiO3进行复合的结果。研究了该复合功能陶瓷的物相、(超)导电性和低温电阻温度特性。结果表明,采用合理的合成工艺,可得到呈现混和分布的两相复合功能陶瓷材料;该复合材料的电导特征符合三维渗流导电行为,发现在较高YBa2Cu3O6+δ含量时,样品呈超导电性,并对此作了初步讨论。

     

    A class of ceramic composite prepared with two kinds of oxide ceramics of ferroelectric BaTiO3 and superconducting YBa2Cu3O6+δ is reported, and the phase structure and electrical transport properties of the samples are investigated. The results show that the main phases varied in different composition regions. For low nominal YBa2Cu3O6+δ content, the conductive characteristics of the two-phase (BaTiO3 and YBa3Ti2O8.5) composite follow the three-dimensional percolation model; while for high nominal YBa2Cu3O6+δ contents, superconductivity is observed.

     

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