Hydroxyapatite Lanthanum Oxide Composites

Y. Bozkurta, S. Pazarlioglub, H. Gokcec, I. Gurlerd, S. Salmane aMarmara University, Technology Faculty, Metallurgy and Materials, Engineering Department, 34722 Istanbul, Turkey bMarmara University, Technical Education Faculty, Metal Education, Deparment, Goztepe Campus, 34722, Istanbul/ Turkey cIstanbul Technical University, Prof. Dr. Adnan Tekin Material Science, & Production Technologies Applied Research Center, 34469 Istanbul/ Turkey dMarmara University, Institute of Pure and Applied Sciences, Metal Education, Deparment, 34722 Istanbul/ Turkey eMehmet Akif Ersoy University, Faculty of Engineering & Architecture, Mechanical, Engineering Department, Istiklal Campus, 15100, Burdur/Turkey

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In the present study a commercially synthetic hydroxyapatite powders (CSHAp) were doped with lanthanum oxide (5 and 10 wt.% La2O3). The composite powders were well homogenized and pelleted in an uniaxial mould at 350 MPa. Pelleted green bodies were sintered at five different temperatures. Finally, the effect of La2O3 amount on the microstructural and mechanical properties of CSHA was investigated. Microstructural properties were detected by X-ray diffraction patterns (XRD) and scanning electron microscope (SEM). Mechanical properties of the sintered samples were determined by the density, hardness and compression strength measurements. Experimental results show that the mechanical properties of HA can be improved by the doping of La2O3

DOI: 10.12693/APhysPolA.127.1407 PACS numbers: 87.85.jf