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Bulletin of Materials Science

, Volume 26, Issue 5, pp 537–541 | Cite as

Photoplastic effect in polycarbonate using microhardness measurements

  • R. Bajpai
  • Sandhya Sharma
  • V. K. Vastal
  • B. P. Chandra
Article

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.

Keywords

Photoplastic effect polycarbonate microhardness 

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Copyright information

© Indian Academy of Sciences 2003

Authors and Affiliations

  • R. Bajpai
    • 1
  • Sandhya Sharma
    • 1
  • V. K. Vastal
    • 1
  • B. P. Chandra
    • 1
  1. 1.Department of Postgraduate Studies and Research in PhysicsRani Durgavati UniversityJabalpurIndia

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