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Research Article
Production and characterization of ternary sheep hydroxyapatite (SHA)-wollastonite (W)-commercial inert glass (CIG) biocomposite
Nermin Demirkol*,1,2, Merve Turan2
1Ceramic, Glass & Tile Program, Kocaeli University, Kocaeli, Turkey
2Department of Biomedical Engineering, Kocaeli University, Kocaeli, Turkey
Keywords
Abstract
Sheep bone; Hydroxyapatite; Mechanical Properties; Composite; Commercial Inert Glass; Wollastonite
Hydroxyapatite [HA] is the most widely accepted
biomaterial for the repair and reconstruction of bone tissue defects. It has
all the characteristic features of biomaterials such as biocompatible,
bioactive, osteoconductive, nontoxic, non-inflammatory and non-immunogenic
properties. It has low mechanical properties for load bearing applications. HA
must be reinforced with other ceramics or metals to produce more load resistible
composites. HA also can be produced from natural materials such as bovine,
sheep, chicken, human bones, fish bones with simple calcination method. In this
study, 5 wt% wollastonite and 5 wt% commercial inert glass were added to sheep
hydroxyapatite together to improve mechanical properties. Mechanical properties of
composite increased with increasing sintering temperature. The highest Vickers
microhardness and compression strength values were obtained with SHA-5 wt%
wollastonite- 5 wt % CIG composite sintered at 1300ºC as 197 HV and 94 MPa, respectively.
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