Reducing the thermal resistance of a pressed contact by employing an interfacial filler
- Dept. of Applied Energy, School of Mechanical Engineering, Cranfield Inst. of Technology, Bedford MK43 0AK (GB)
Previous investigations into the use of interstitial inserts as a means of controlling the thermal conductance occurring across metallic contacts are reviewed. The factors influencing the choice of a suitable filler for a particular application are discussed. A mathematical model has been used to predict the behavior of a joint formed between the flat surfaces of two, originally isothermal cylindrical components, one of duralumin and the other of a titanium alloy. The model was validated by comparing the predictions from it with experimental measurements. For this particular contact, aluminum cooking foil proved to be a superior insert to the more expensive, commercially advocated, thermal control materials for reducing contact resistances.
- OSTI ID:
- 5855973
- Journal Information:
- Heat Transfer Engineering; (USA), Vol. 12:1; ISSN 0145-7632
- Country of Publication:
- United States
- Language:
- English
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