Naslov
STRESSES IN SHAPE MEMORY POLYMER-MATRIX NANOCOMPOSITES FOR BIOMEDICAL APPLICATIONS

Autori
Balzara, Davor ; Štefanić, Goran ; Gall, Ken ; Dunn, Martin ; Liu, Yiping

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Advances in X-ray Analysis / - Denver (CO) : JCPDS - International Centre for Diffraction Data, 2004, 98-103

Skup
Denver X-ray Conferences

Mjesto i datum
Denver (CO), Sjedinjene Američke Države, 02.08.2004. - 06.08.2004

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
silicon compounds; filled polymers; particle reinforced composites; shape memory effects; nanocomposites; nanoparticles; internal stresses; stress-strain relations; recovery; lattice constants

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA