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Ductile particle toughening of hydroxyapatite ceramics using platinum particles
conference contribution
posted on 2017-12-06, 00:00 authored by Richard CleggRichard Clegg, G PatersonBioceramics such as hydroxyapatites have low fracture toughness and this has limited their widespread use in medicine. In this paper we describe a method for incorporating, ductile platinum particles into a hydroxyapatite matrix in order to improve the fracture toughness. The fracture toughness of the composite was measured using a Vickers indentation technique and the effect of volume fraction of platinum particles on the fracture toughness was determined and compared with predictions based on models in the literature. The results indicated that the incorporation of the particles improved the measured fracture toughness of the composite in a manner consistent with that predicted in the literature.
Funding
Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)
History
Parent Title
Structural integrity and fracture : proceedings of the International Conference, SIF2004, 26-29 September 2004. Brisbane, AustraliaStart Page
47End Page
53Number of Pages
7Start Date
2004-01-01ISBN-10
1864997605Location
Brisbane, Qld.Publisher
Australian Fracture GroupPlace of Publication
Brisbane, QldFull Text URL
Peer Reviewed
- Yes
Open Access
- No
External Author Affiliations
Faculty of Engineering and Physical Systems; Queensland University of Technology;Era Eligible
- Yes