Studies of elastic constants of oriented poly(ethylene terephthalate) films using Brillouin scattering
- 1 October 1981
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 52 (10) , 5998-6002
- https://doi.org/10.1063/1.329820
Abstract
Brillouin scattering is used to study the elastic behavior of oriented poly(ethylene terephthalate) films. The elastic constants C11, C13, C33, and C44 are determined by measurements of the quasilongitudinal and quasitransverse hypersonic velocities at different angles in the film. The total orientational parameter is calculated for the three draw ratios from the Brillouin hypersonic velocities and are found to be similar to the orientational parameter in the amorphous phase obtained with a different technique.This publication has 6 references indexed in Scilit:
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