Top loading cryogen-free apparatus for low temperature thermophysical properties measurement
Top loading cryogen-free apparatus for low temperature thermophysical properties measurement
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DOI：
10.1016/j.cryogenics.2014.02.020
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发表时间：
2014-07-01
期刊：
影响因子：
2.1
通讯作者：
Li, Laifeng
中科院分区：
文献类型：
--
作者：
Liu, Huiming;Gong, Linghui;Li, Laifeng
物质的热物理性质，特别是低温下的性质，对于工程和材料科学极其重要。由于液氦成本高昂，传统液氦低温恒温器在许多情况下不再能够负担得起运行成本。本文描述了基于 GM 制冷机的无制冷剂低温恒温器的设计和测试结果，该低温恒温器具有 50 mm 直径顶部装载样品设施，用于低温热物理特性测量。样品温度范围在 2.6 K 至 300 K 之间调节，并且可以以高分辨率连续控制。此外，模块化样品架可适应多种特性测量。 (C) 2014 Elsevier Ltd. 保留所有权利。
The thermophysical properties of matter, especially properties at low temperature, are extremely important for engineering and materials science. Traditional liquid helium based cryostats are in many cases no longer affordable to operate due to the high liquid helium cost. This paper describes the design and test results of a cryogen-free cryostat, based on a GM cryocooler, with 50 mm diameter top loading sample facilities for thermophysical properties measurement at low temperature. The sample temperature range is tuned between 2.6 K and 300 K and it can be continuously controlled with a high resolution. Moreover, the modular sample holder can be adapted to multiple properties measurement. (C) 2014 Elsevier Ltd. All rights reserved.