| Autor: |
Rogers, K. F., Phillips, L. N., Kingston-Lee, D. M., Yates, B., Overy, M. J., Sargent, J. P., McCalla, B. A. |
| Zdroj: |
Journal of Materials Science; April 1977, Vol. 12 Issue: 4 p718-734, 17p |
| Abstrakt: |
Interferometric measurements of the linear thermal expansion coefficients between approximately 90 and 400 K of a series of unidirectional and bidirectional specimens of epoxy resin ERLA 4617/mPDA reinforced with Courtaulds HTS and HMS carbon fibres are reported for three mutually perpendicular directions. The room temperature results have been employed, in association with related data, to confirm that the main features of the dependence of the linear thermal expansion coefficients of these composites upon the thermal and elastic properties of the constituents and the orientations of the fibres within the matrices conform with expectations based upon current models of the thermal expansion and elastic behaviour of composite solids. At higher temperatures the results clearly show marked changes in the temperature dependence of the dimensional behaviour which result from the relaxation accompanying the softening of the resin. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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