Simultaneous Measurement of Thermal Diffusivity and Conductivity Applied to Bi-2223 Ceramic Superconductors
Simultaneous Measurement of Thermal Diffusivity and Conductivity Applied to Bi-2223 Ceramic Superconductors
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Bi-2223 陶瓷超导体热扩散率和电导率的同步测量
DOI：
10.1143/jpsj.63.3107
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发表时间：
1994
影响因子：
1.7
通讯作者：
K. Noto
中科院分区：
文献类型：
--
作者：
M. Ikebe;H. Fujishiro;T. Naito;K. Noto
提出了一种在同一实验装置下测量热扩散率α和电导率κ的方法，并准同时测量了Bi2223氧化物超导体的α和κ。根据BRT和Tewordt-Wolkhausen理论对计算结果进行了分析。同时测量使估算比热C和德拜温度ΘD以及分离电子和声子对扩散系数的贡献成为可能。同时测量还提供了对分析的可靠性和一致性的有用检查。
A method to measure the thermal diffusivity α and the conductivity κ under an identical experimental setup has been developed and α and κ of Bi-2223 oxide superconductor have been measured quasi-simultaneously. The results are analyzed on the basis of the BRT and Tewordt-Wolkhausen theory. The simultaneous measurement makes it possible to estimate the specific heat C and the Debye temperature Θ D , as well as to separate the electron and phonon contributions to the diffusivity. The simultaneous measurement also provides a useful check on the reliability and the consistency of the analyses.