日本金属学会誌

J. Japan Inst. Metals, Vol. 69, No. 8 (2005),
pp. 759-762

Effect of Electron Beam Irradiation on Stress-Strain Curves of Tensile Test of Polycarbonate Resin

Tatsuya Takahashi, Tadae Morishita and Yoshitake Nishi

Department of Materials Science, School of Engineering, Tokai University, Hiratsuka 259-1292

Abstract:

Influences of electron beam irradiation on stress-strain curves of tensile test were studied for polycarbonate resin. The electron beam (EB) irradiation enhanced the tensile strength and ductility. The maximum values were found at 0.2 MGy of EB-irradiation. On the other hand, excess EB irradiation decreased the tensile fracture stress and ductility. To discuss the effect of electron beam on tensile strength and ductility, the dangling bonds formation was evaluated by ESR signals. The enhancements of ductility and fracture stress can be explained by stress relaxation induced by increase in density of dangling bonds.


(Received 2005/4/25)

Keywords:

polycarbonate resin, electron beam, fracture stress, ductility, electron spin resonance


PDF(Free)PDF (Free)     Table of ContentsTable of Contents

Please do not copy without permission.