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Measurement of the thermal conductivity of composites using heat flow sensors
Author(s) -
Penn B. G.,
Ledbetter F. E.,
White W. T.,
Clemons J. M.
Publication year - 1986
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.750070605
Subject(s) - thermal conductivity , materials science , composite material , heat flow , heat flux , conductivity , thermal conductivity measurement , thermal , measure (data warehouse) , matrix (chemical analysis) , heat transfer , thermodynamics , chemistry , physics , database , computer science
A thermal conductivity measuring apparatus that uses heat flow sensors to measure the heat flux through samples was constructed of inexpensive materials. This device was used to measure the thermal conductivity ( k ) of two composites used in the space program that consist of fibrous or granular components embedded in a resin matrix. The k ‐values that were determined ranged from 0.035 to 0.059 Btu/h‐ft 2 ‐°F/ft (−163 to 553°F) and 0.029 to 0.035 Btu/h‐ft 2 ‐°F/ft (77 to 212°F). Thermal conductivity values of the composites conformed to the rule of mixture. The accuracy of the system was found to be comparable to the guarded hotplate and it requires neither a skilled operator nor extensive maintenance.