Abstract
Interferometric measurements of the linear thermal expansion coefficients of epoxy resin Code 69 are reported over the approximate temperature range 90 K to 500 K. Corresponding measurements on specimens of this resin reinforced with unidirectional Courtaulds HTS carbon fibre and on specimens of resins DLS 351/BF3400 and Code 69 reinforced with bidirectional HTS fibres are also reported. The results are qualitatively similar to earlier observations on similar specimens based upon ERLA 4617/mPDA and DLS 351/BF3400 resins. A comparison of the present results with those described earlier has established that a detailed knowledge of the temperature dependence of the thermal expansion characteristics of a resin permits a good estimate to be made of the corresponding behaviour of unidirectional and bidirectional composites based upon it.
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References
K.F. Rogers, L.N. Phillips, D.M. Kingston-Lee, B. Yates, M.J. Overy, J.P. Sargent and B.A. McCalla, J. Mater. Sci. 12 (1977) 718.
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Yates, B., McCalla, B.A., Sargent, J.P. et al. The thermal expansion of carbon fibre reinforced plastics. J Mater Sci 13, 2217–2225 (1978). https://doi.org/10.1007/BF00541677
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DOI: https://doi.org/10.1007/BF00541677