Abstract
Vickers microhardness indentation technique has been employed to detect the photoplastic effect in the transparent polycarbonate specimens in darkness and under mercury illumination. For low applied loads, the hardening of specimens under illumination confirms the positive photoplastic effect that causes illumination-induced increase of crosslinking (in polymer). For high applied loads the positive photoplastic effect decreases as the level of microhardness decreases.
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References
Bajpai R and Datt S C 1986Indian J. Pure & Appl. Phys. 24 254
Brill W A 1966Basic studies in photoplasticity, Ph.D. Disser- tation, Stanford University, Stanford
Gonzalez A, Martin G J, de Saja J A and Rodriguez R 1986J. Appl. Polym. Sci. 31 717
Ito K 1962Exp. Mech. 2 979
Lopez J 1993Polym. Test 12 437
Mills N J 1976J. Mater. Sci. GB 11 363
Rabinowetz S and Brown N 1967J. Polym. Sci. 5 143
Zurimendi J A, Biddlestone F, Hay J N and Haward R N 1982J. Mater. Sci. 17 199
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Bajpai, R., Sharma, S., Vastal, V.K. et al. Photoplastic effect in polycarbonate using microhardness measurements. Bull Mater Sci 26, 537–541 (2003). https://doi.org/10.1007/BF02707353
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DOI: https://doi.org/10.1007/BF02707353