Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Stresses in shape memory polymer-matrix nanocomposites for biomedical applications



Davor Balzar, G Stefanic, Kenneth Gall, Martin Dunn, Yiping Liu


We report on the residual stresses in amorphous shape memory polymers reinforced with SiC particles. After 50 % compression of the composite material at 25 ¿C, the SiC particles exhibit a compressive stress, which is almost completely released during heated recovery at 120 ¿C. The residual stresses in SiC hexagonal (6H) phase were estimated through the average change of the unit-cell volume. Lattice parameters of the starting SiC powder, as-prepared composites, deformed, and recovered composites were obtained by Rietveld refinement of diffraction patterns. The values of the internal residual stresses in the particles are compared to values based on micromechanics calculations.
Adv. XRay Anal.


biomedical applications, composites, Rietveld refinement, shape-memory polymers, strain/stress


Balzar, D. , Stefanic, G. , Gall, K. , Dunn, M. and Liu, Y. (2004), Stresses in shape memory polymer-matrix nanocomposites for biomedical applications, Adv. XRay Anal. (Accessed June 18, 2024)


If you have any questions about this publication or are having problems accessing it, please contact

Created May 31, 2004, Updated October 12, 2021