Electronic Theses and Dissertations

Identifier

989

Author

Rudra Gnawali

Date

2013

Date of Award

12-2-2013

Document Type

Thesis

Degree Name

Master of Science

Major

Physics

Concentration

Materials Science

Committee Chair

M. Shah Jahan

Committee Member

Sanjay R Mishra

Committee Member

John W. Hanneken

Committee Member

Hai Trieu

Abstract

Polycarbonate Urethane (PCU) is a material of growing prominence for use as a biocompatible material for joint replacements. PCU has good wear properties, is easy to lubricate, and is very compatible with natural tissues. Extensive studies stil have not been performed to fully investigate the radiation effects on PCU components. Thermally stimulated luminescence (TSL) spectroscopy is a powerful tool to study radiation-induced defects in materials, while electron spin resonance (ESR) is a technique to directly detect free radicals in a material. To better investigate radiation effects on PCU materials, we have subjected PCU to X- and UV-irradiation and analyzed the thermally-stimulated luminescence (TSL) and radiation-induced free radicals. The materials used for the study were Bionet hip linear obtained from Active Implants Corporation. The resulting TSL and ESR data were analyzed to obtain new insights into the molecular properrties of Polycarbonate urethane.

Comments

Data is provided by the student.

Library Comment

dissertation or thesis originally submitted to the local University of Memphis Electronic Theses & dissertation (ETD) Repository.

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