激光光热法测试YBCO 高温超导带材热扩散率

李想; 吴钢; 周刚; 毕柯; 汤智胤; 张青枝; 马计

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激光光热法测试YBCO 高温超导带材热扩散率

李想, 吴钢, 周刚, 毕柯, 汤智胤, 张青枝, 马计

文章导航 > 红外与激光工程 > 2014 > 43(6): 1740-1744

李想, 吴钢, 周刚, 毕柯, 汤智胤, 张青枝, 马计. 激光光热法测试YBCO 高温超导带材热扩散率[J]. 红外与激光工程, 2014, 43(6): 1740-1744.

引用本文:

李想, 吴钢, 周刚, 毕柯, 汤智胤, 张青枝, 马计. 激光光热法测试YBCO 高温超导带材热扩散率[J]. 红外与激光工程, 2014, 43(6): 1740-1744.

Li Xiang, Wu Gang, Zhou Gang, Bi Ke, Tang Zhiyin, Zhang Qingzhi, Ma Ji. Measurement for thermal diffusivity of YBCO high temperature superconducting tapes based on laser photo-thermal method[J]. Infrared and Laser Engineering, 2014, 43(6): 1740-1744.

Citation:

Li Xiang, Wu Gang, Zhou Gang, Bi Ke, Tang Zhiyin, Zhang Qingzhi, Ma Ji. Measurement for thermal diffusivity of YBCO high temperature superconducting tapes based on laser photo-thermal method[J]. Infrared and Laser Engineering, 2014, 43(6): 1740-1744.

激光光热法测试YBCO 高温超导带材热扩散率

李想¹,
吴钢¹,
周刚²,
毕柯¹,
汤智胤¹,
张青枝¹,
马计¹

1.
海军工程大学动力工程学院,湖北武汉 430033;
2.
中国科学院低温工程学重点实验室,北京 100190

基金项目:

国家自然科学基金（51076165）;中国科学院重点实验室基金（CRYO201221）

详细信息

作者简介:
李想（1986-），男，博士生，主要从事制冷与低温工程方面的研究工作。Email：suplixiang@163.com

中图分类号: O514.2

Measurement for thermal diffusivity of YBCO high temperature superconducting tapes based on laser photo-thermal method

1.
Power Engineering School,Naval University of Engineering,Wuhan 430033,China;
2.
Key Laboratory of Cryogenics,Chinese Academy of Sciences,Beijing 100190,China

摘要: 根据激光光热法原理建立了高温超导带材低温真空环境下热扩散率测试系统。通过研究热扩散率与加热激光调制频率及热波通过样品时产生的相位差之间的关系，提出了激光光热法测试热扩散率实验数据处理新思路，消除了系统误差的影响。为了探讨测试方法的可靠性，以热扩散率已知的紫铜为标准样品进行了测试。在此基础上，对YBCO高温超导带材进行了测试，获得了其在40~120K温区的热扩散率数据。YBCO 高温超导带材热扩散率随温度升高而降低，尤其在40~60K温区下降较快。
- 激光光热法 /
- 高温超导 /
- 低温 /
- 热扩散率
Abstract: According to laser photo-thermal method, the measurement system of high temperature superconducting (HTS) tapes thermal diffusivity was built in low temperature and vacuum condition. Through the research on the relationship among thermal diffusivity, modulation frequency of heating laser and phase difference of heat wave when passing through specimen, novel idea to deal with experimental data from the thermal diffusivity testing by using laser photo-thermal method was put forward, and the systematic error influence was eliminated. To verify the reliability of the measurement system, the copper was used as reference material and the thermal diffusivity of copper was measured. On that basis, the thermal diffusivity of YBCO HTS tape was measured by using laser photo-thermal method, and the thermal diffusivity of YBCO HTS tape has been got when the temperature scope was from 40 K to 120 K. The thermal diffusivity decreases with the temperature increasing. Especially, decreasing sharply in the temperature range of 40-60 K.
- laser photo-thermal method /
- HTS /
- low temperature /
- thermal diffusivity

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激光光热法测试YBCO 高温超导带材热扩散率

1. 海军工程大学动力工程学院,湖北武汉 430033;

2. 中国科学院低温工程学重点实验室,北京 100190

作者简介:
李想（1986-），男，博士生，主要从事制冷与低温工程方面的研究工作。Email：suplixiang@163.com

收稿日期: 2013-10-20
修回日期: 2013-11-25
刊出日期: 2014-06-25

基金项目:

国家自然科学基金（51076165）;中国科学院重点实验室基金（CRYO201221）

中图分类号: O514.2

关键词:

摘要: 根据激光光热法原理建立了高温超导带材低温真空环境下热扩散率测试系统。通过研究热扩散率与加热激光调制频率及热波通过样品时产生的相位差之间的关系，提出了激光光热法测试热扩散率实验数据处理新思路，消除了系统误差的影响。为了探讨测试方法的可靠性，以热扩散率已知的紫铜为标准样品进行了测试。在此基础上，对YBCO高温超导带材进行了测试，获得了其在40~120K温区的热扩散率数据。YBCO 高温超导带材热扩散率随温度升高而降低，尤其在40~60K温区下降较快。

English Abstract

Measurement for thermal diffusivity of YBCO high temperature superconducting tapes based on laser photo-thermal method

1. Power Engineering School,Naval University of Engineering,Wuhan 430033,China;

2. Key Laboratory of Cryogenics,Chinese Academy of Sciences,Beijing 100190,China

Received Date: 2013-10-20
Rev Recd Date: 2013-11-25
Publish Date: 2014-06-25

Keywords:

Abstract: According to laser photo-thermal method, the measurement system of high temperature superconducting (HTS) tapes thermal diffusivity was built in low temperature and vacuum condition. Through the research on the relationship among thermal diffusivity, modulation frequency of heating laser and phase difference of heat wave when passing through specimen, novel idea to deal with experimental data from the thermal diffusivity testing by using laser photo-thermal method was put forward, and the systematic error influence was eliminated. To verify the reliability of the measurement system, the copper was used as reference material and the thermal diffusivity of copper was measured. On that basis, the thermal diffusivity of YBCO HTS tape was measured by using laser photo-thermal method, and the thermal diffusivity of YBCO HTS tape has been got when the temperature scope was from 40 K to 120 K. The thermal diffusivity decreases with the temperature increasing. Especially, decreasing sharply in the temperature range of 40-60 K.