Description of removable sample mount apparatus for rapid thermal conductivity measurements

• Published in: Cryogenics (Guildford) Vol. 41; no. 10; pp. 725 - 731
• Main Authors: Pope, A.L., Zawilski, B., Tritt, T.M.
• Format: Journal Article
• Language: English
• Published: Oxford Elsevier Ltd 01.10.2001; Elsevier
• Subjects: Applied sciences; Closed cycle machinery; Closed cycle refrigerator; Cryogenics; Data acquisition; Energy; Energy. Thermal use of fuels; Exact sciences and technology; Mountings; Rapid measurement; Refrigerating engineering. Cryogenics. Food conservation; Refrigerators; Thermal conductivity; Closed cycle refrigerator; Thermal conductivity; Rapid measurement; Measuring instrument; Refrigerator; Measurement method; Closed cycle machine; Cryogenics
• ISSN: 0011-2275; 1879-2235
• DOI: 10.1016/S0011-2275(01)00140-0

Described in this paper is an apparatus in which bulk samples can easily be mounted on a removable puck for thermal conductivity measurements and then placed in the described measurement system. This rapid mounting and measurement system uses a standard steady-state absolute thermal conductivity measurement but allows for rapid measurement and excellent thermal stability coupled with the use of a closed cycle refrigerator. The distinction of this system is rapid mounting and measurement of thermal conductivity over a broad temperature range without sacrificing accuracy and precision in data acquisition. In addition, this system allows for versatility in its use. The design of this apparatus, measurement specifications, and thermal conductivity data on several standard materials measured in this system are presented.