Show simple item record

Author El Qassem, Zuhair Mohameden_US
Author Kassem, Mohamed El-Saiden_US
Available date 2009-11-25T13:06:18Zen_US
Publication Date 1997en_US
Publication Name Engineering Journal of Qatar University
Citation Engineering Journal of Qatar University, 1997, Vol. 10, Pages 133-142.en_US
URI http://hdl.handle.net/10576/7974en_US
Abstract Ultrasonic pulse-echo technique, tensile testing and thermal gravimetric analysis have been utilised to characterise and monitor the effect of y irradiation on the physicomechanical properties of low density polyethylene LDPE, grade FB 5005. The sonic modulus, elastic modulus, rupture stress and decomposition temperature exhibit a minimum value at 2 Mrad irradiated samples, whereas, toughness and rupture strain exhibit a maximum at the same irradiation dose. The changes in mechanical properties (rupture stress and toughness) correlate well with decomposition temperature and the change in the sonic modulus correlates as well with elastic modulus for the tested material. The results are discussed in terms of cross-linking. Below 2 Mrad the loss of crystallinity overrides the effect of cross-linking, whereas above 2 Mrad the cross-linking dominates.en_US
Language enen_US
Publisher Qatar Universityen_US
Subject Engineering: Research & Technologyen_US
Title Ultrasonic Characterization, Tensile Testing And Thermal Properties Of Y Irradiated Low Density Polyethylene, Fb 5005en_US
Type Articleen_US
Pagination 133-142en_US
Volume Number 10en_US


Files in this item

Icon

This item appears in the following Collection(s)

Show simple item record