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Thermal effects in the necking of thermoplastics


THE new technique of thermovision has been used to study deformation and fracture processes in polymers1,2. This technique provides a thermal image of the polymer surface, taken by means of natural infrared radiation in the wavelength range 2 to 6 µm. The method also allows an estimate to be made of the surface temperature of a polymer, although the value obtained may sometimes be low because of transparency in the polymer films.

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  1. Cross, A., and Haward, R. N., J. Polym. Sci. (Phys.), 11, 2423 (1973).

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  2. Roseen, R., J. Mat. Sci., 9, 929 (1974).

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CROSS, A., HALL, M. & HAWARD, R. Thermal effects in the necking of thermoplastics. Nature 253, 340–341 (1975).

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