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回热材料Gd2O2S 在液氦温区高频脉管制冷机的实验研究

回热材料Gd2O2S 在液氦温区高频脉管制冷机的实验研究
李晓永,全加,刘彦杰,蔡京辉,叶荣昌
1. 中国科学院理化技术研究所;
2. 中国科学院大学;
3. 北京科技大学
EXPERIMENT STUDY ON REGENERATOR MATERIALS OF Gd2O2S IN HIGH FREQUENCY PULSE TUBE CRYOCOOLER WORKING AT LIQUID HELIUM TEMPERATURE
LI Xiao-yong,QUAN Jia,LIU Yan-jie,CAI Jing-hui,YE Rong-chang
1. Technical Institute of Physics and Chemistry,CAS;
2. Graduate University of Chinese Academy of Sciences;
3. University of Science and Technology Beijing


摘要:液氦温区高频脉冲管制冷机具有体积功耗小、质量轻、低振动等优点,因此在太赫兹通信、深空探测和空间科学实验等方面的应用具有独特的优势,是国内外深低温机械式制冷机的研究热点。而低温回热材料的性能是制约深低温制冷机发展的关键因素。利用实验室自主设计的液氦温区两级脉冲管制冷机及北京科技大学提供的Gd2O2S(GOS)材料,从填充长度等方面,对回热材料在液氦温区高频脉冲管制冷机的应用进行了实验研究。实验结果表明,在目前工况下,回热材料HoCu2的实验效果是优于GOS,并对此做出了分析和解释。

关键词:液氦温区,  回热材料,  GOS    
Abstract:The high frequency pulse tube cryocooler which can achieve 4.2 K(liquid helium temperature)has the advantage of low electromagnetic,light weight and small volume. It would be used in the field of THz communication,deep space exploration and space science experiments. At the same time,it is a hot research area in mechanical cryogenic refrigerator. The performance of regenerator materials has a vital influence on the development of cryogenic efrigerator. Based on the two-stage pulse tube cryocooler working at liquid helium temperature which is a independent self-design in our laboratory and the regenerator materials of Gd2O2S provided by University of Science and Technology Beijing,the paper shows a series of experiment studies which focus on the regenerator materials of GOS. The result of experiments points out that the regenerator materials of HoCu2 is better than GOS under current conditions. And the phenomenon is specifically discussed in the paper.

Key words: liquid helium temperature    regenerative materials    GOS
    
作者简介: 李晓永(1989-),男,河南安阳人,硕士研究生,主要从事液氦温区制冷机研究工作

引用本文: 李晓永,全加,刘彦杰,蔡京辉,叶荣昌. 回热材料Gd2O2S 在液氦温区高频脉管制冷机的实验研究[J]. 真空与低温, 2017, 23(3): 158-.
LI Xiao-yong,QUAN Jia,LIU Yan-jie,CAI Jing-hui,YE Rong-chang. EXPERIMENT STUDY ON REGENERATOR MATERIALS OF Gd2O2S IN HIGH FREQUENCY PULSE TUBE CRYOCOOLER WORKING AT LIQUID HELIUM TEMPERATURE. journal1, 2017, 23(3): 158-.


文章来源:《真空与低温》杂志2017年23卷3期

刊出日期:2017-06-28

链接地址:http://www.lipcast.cn:81/zkydw/CN/abstract/abstract140.shtml