Composites of bovine hydroxyapatite (BHA) and ZnO

Composites of calcinated bovine bone-derived hydroxyapatite (BHA), doped with 2.5, 5, and 10 wt.% ZnO were produced by sintering. Scanning electron microscopy (SEM) and X-ray diffraction analysis together with measurements of density, compressive strength, and Vickers microhardness were carried out...

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Bibliographic Details
Published in:Journal of materials science 2008-04, Vol.43 (8), p.2536-2540
Main Authors: Gunduz, Oguzhan, Erkan, Eray M, Daglilar, Sibel, Salman, Serdar, Agathopoulos, Simeon, Oktar, Faik Nuzhet
Format: Article
Language:English
Subjects:
Applied sciences
BHA
Biological and medical sciences
Biomedical materials
Building materials. Ceramics. Glasses
cattle
Ceramic industries
Cermets, ceramic and refractory composites
Characterization and Evaluation of Materials
Chemical industry and chemicals
Chemistry and Materials Science
Classical Mechanics
Composite materials
Compressive strength
Cross-disciplinary physics: materials science
rheology
Crystallography and Scattering Methods
Density
Diamond pyramid hardness
Exact sciences and technology
Heat treatment
Hydroxyapatite
Materials Science
Mechanical properties
Medical sciences
Miscellaneous
Other materials
Physics
Polymer Sciences
Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects)
Scanning electron microscopy
Sintering
Solid Mechanics
Specific materials
Surgical implants
Technical ceramics
Technology. Biomaterials. Equipments. Material. Instrumentation
X-ray diffraction
Zinc oxide
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Summary:Composites of calcinated bovine bone-derived hydroxyapatite (BHA), doped with 2.5, 5, and 10 wt.% ZnO were produced by sintering. Scanning electron microscopy (SEM) and X-ray diffraction analysis together with measurements of density, compressive strength, and Vickers microhardness were carried out in the sintered samples. The experimental results showed that the best mechanical properties were achieved in the samples with 5% addition of ZnO. The highest value of compression strength was achieved after sintering at 1200 °C (72 MPa) and of microhardness at 1300 °C (548 HV). Prolong heat treatment at 1300 °C results in vulnerable BHA–ZnO composites to over-firing effect.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-008-2497-1