Paper Title:
Mechanical Behaviour of Interpenetrating Co-Continuous β-TCP-PDLLA Composites
  Abstract

Co-continuous degradable polymer-ceramic composites were produced via in-situ polymerization of (D,L-lactic)acid monomer within a porous β-tricalcium phosphate matrix. The mechanical properties of both the composite and the unfilled porous ceramic were investigated with compressive testing. The average stress to failure increased from 1.3±0.1 MPa for the unfilled ceramic matrix to 82±2 MPa for the composite. The Young’s modulus increased from approximately 20 MPa to 700±42 MPa. A combination of X-ray micro-tomography and mechanical testing provided insight into the failure mechanisms of the composite. Stress may be deflected by crack bridging around the polymer phase leading to debonding of the polymer along the crack lines.

  Info
Periodical
Key Engineering Materials (Volumes 361-363)
Main Theme
Edited by
Guy Daculsi and Pierre Layrolle
Pages
407-410
DOI
10.4028/www.scientific.net/KEM.361-363.407
Citation
L. M. Ehrenfried, D. Farrar, D. Morsley, R. Cameron, "Mechanical Behaviour of Interpenetrating Co-Continuous β-TCP-PDLLA Composites", Key Engineering Materials, Vols. 361-363, pp. 407-410, 2008
Online since
November 2007
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$32.00
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