# Thermal Expansion of Irradiated Polyethylene from 10 to 340 K

Jayanna, HS and Subramanyam, SV (2003) Thermal Expansion of Irradiated Polyethylene from 10 to 340 K. In: Journal of Polymer Science Part B: Polymer Physics, 31 (9). pp. 1095-1098.

## Abstract

The coefficient of thermal expansion of $\gamma$-irradiated polyethylene has been measured from 10 to 340 K by using the three-terminal capacitance technique. The samples are irradiated to 500 Mrad in steps of 100 Mrad in air at room temperature with $\gamma$-rays from a $Co^{60}$ source at a dose rate of 0.3 Mrad/h. The crystallinity of the sample is measured by x-ray diffraction. The crystallinity is found to decrease with radiation dose. The thermal expansion coefficient is found to be constant with radiation doses from 10 to 110 K and decreases with doses from 110 to 340 K.

Item Type: Journal Article Copyright of this article belongs to John Wiley & Sons Inc. Polyethylene;Irradiation;Thermal expansion Division of Physical & Mathematical Sciences > Physics Kujur Pawan 07 Jul 2006 19 Sep 2010 04:29 http://eprints.iisc.ac.in/id/eprint/7880