Effect of Al2O3, ZrO2, and TiO2 Addition on the Mechanical Properties and the Microstructure of Natural Hydroxyapatite Obtained from Calf Femoral Bone

Ilker Ozden; M. Ipekoglu; N. Mahmutyazicioglu; S. Altıntaş

doi:10.4028/www.scientific.net/KEM.493-494.199

Paper Titles

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Gallium-Doped β-Tricalcium Phosphate Ceramics: Characterization and Properties
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Effect of Al₂O₃, ZrO₂, and TiO₂ Addition on the Mechanical Properties and the Microstructure of Natural Hydroxyapatite Obtained from Calf Femoral Bone
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Recrystallization of Amorphized α-TCP
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 493-494Effect of Al2O3, ZrO2, and TiO2 Addition on the...

Effect of Al₂O₃, ZrO₂, and TiO₂ Addition on the Mechanical Properties and the Microstructure of Natural Hydroxyapatite Obtained from Calf Femoral Bone

Abstract:

Pure hydroxyapatite (HA) was obtained by the calcination of calf femoral bone and was ground manually and by subsequent mechanical grinding to decrease the particle size. Micron-sized Al₂O₃, ZrO₂, and TiO₂ ceramics were added at different concentrations (5, 10 and 15 wt. %) to the obtained micron-sized HA powder. After adequate mixing cylindrical test specimen were prepared and sintered at 900, 1000 and 1100 °C. The specimen were tested for their compressive strengths and SEM observations and XRD analyses were conducted to determine the effect of different additives and sintering temperatures on the mechanical strengths, morphology and formed phases of the samples. TiO₂ addition to the HA at 15 wt. % powder resulted in highest compressive strength with good sintering behavior.

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Periodical:

Key Engineering Materials (Volumes 493-494)

Pages:

199-204

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.493-494.199

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Online since:

October 2011

Authors:

Ilker Ozden, M. Ipekoglu, N. Mahmutyazicioglu, S. Altıntaş

Keywords:

Ceramic Additive, Grinding, Hydroxyapatite (HAP), Mechanical Strength, Sintering

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