Passive pyrolytic graphite heat switch for sub-Kelvin coolers

IF 1.8 3区工程技术 Q3 PHYSICS, APPLIED

Cryogenics Pub Date : 2025-04-16 DOI:10.1016/j.cryogenics.2025.104079

Roman Kolevatov, Joe Wiedemann, Dmitrii Trunin, Joelle-Marie Begin, Nate Otto, Lyman Page, Saptarshi Chaudhuri

引用次数: 0

Abstract

We describe a passive heat switch based on a commercial pyrolytic graphite sheet. Measurements of the thermal conductivity of the graphite are presented, confirming a large difference between room temperature and ≈4 K. The implementation of a graphite heat switch in a cryostat operating a ³He/⁴He sorption refrigerator is demonstrated.

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用于亚开尔文冷却器的被动热解石墨热开关

我们介绍了一种基于商用热解石墨片的无源热开关。我们展示了在运行 3He/4He 吸附制冷器的低温恒温器中实施石墨热开关的情况。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Cryogenics 物理-热力学

CiteScore

3.80

自引率

9.50%

发文量

审稿时长

2.1 months

期刊介绍： Cryogenics is the world''s leading journal focusing on all aspects of cryoengineering and cryogenics. Papers published in Cryogenics cover a wide variety of subjects in low temperature engineering and research. Among the areas covered are: - Applications of superconductivity: magnets, electronics, devices - Superconductors and their properties - Properties of materials: metals, alloys, composites, polymers, insulations - New applications of cryogenic technology to processes, devices, machinery - Refrigeration and liquefaction technology - Thermodynamics - Fluid properties and fluid mechanics - Heat transfer - Thermometry and measurement science - Cryogenics in medicine - Cryoelectronics