Effect of sintering on the physical and mechanical properties of Co-Cr-Mo (F-75)/HAP composites

This paper reports on the effects of HAP addition and sintering temperature on the microstructure and properties of the F-75/HAP composites fabricated by powder metallurgy. Co-Cr-Mo (F-75) is used in orthopedics because of its excellent biocompatibility when implanted to human or animal body. Hydrox...

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Main Authors:	Nur Maizatul Shima Adzali, Shamsul Baharin Jamaludin, Mohd Nazree Derman
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2013
Online Access:	http://journalarticle.ukm.my/6687/ http://journalarticle.ukm.my/6687/ http://journalarticle.ukm.my/6687/1/11_Nur_Maizatul_Shima.pdf

id	ukm-6687
recordtype	eprints
spelling	ukm-66872016-12-14T06:41:55Z http://journalarticle.ukm.my/6687/ Effect of sintering on the physical and mechanical properties of Co-Cr-Mo (F-75)/HAP composites Nur Maizatul Shima Adzali, Shamsul Baharin Jamaludin, Mohd Nazree Derman, This paper reports on the effects of HAP addition and sintering temperature on the microstructure and properties of the F-75/HAP composites fabricated by powder metallurgy. Co-Cr-Mo (F-75) is used in orthopedics because of its excellent biocompatibility when implanted to human or animal body. Hydroxyapatite (HAP) powders have been used as fillers because HAP is the one of the most effective biocompatible materials with similarities to mineral constituents of bones and teeth. HAP powders (chemical formula Ca10(PO4)6 (OH)2) have been added to Co-Cr-Mo alloys in composition of 0 to 10 wt. %. The mixtures were then milled, cold compacted at 550 MPa, before sintered at 1100 and 1200°C in a tube furnace. The density, porosity, microhardness and compressive strength were measured. The composites that have been sintered at temperature 1200°C showed better physical and mechanical properties than those produced at 1100°C. After sintering at 1200°C, the samples show higher density, compared with the sample sintered at 1100°C. The sample with no HAP which have been sintered at 1200°C has the highest microhardness (208.9 HV), compared with the same sample sintered at 1100°C (194.3HV). As the temperature is increased from 1100 to 1200°C, the value of compressive strength increased from 184.538 to 341.086 MPa. Microstructural analysis for line scan showed that, as the sintering temperature was increased, there was good interface bonding between HAP particles and matrix F-75. Universiti Kebangsaan Malaysia 2013-12 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/6687/1/11_Nur_Maizatul_Shima.pdf Nur Maizatul Shima Adzali, and Shamsul Baharin Jamaludin, and Mohd Nazree Derman, (2013) Effect of sintering on the physical and mechanical properties of Co-Cr-Mo (F-75)/HAP composites. Sains Malaysiana, 42 (12). pp. 1763-1768. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	This paper reports on the effects of HAP addition and sintering temperature on the microstructure and properties of the F-75/HAP composites fabricated by powder metallurgy. Co-Cr-Mo (F-75) is used in orthopedics because of its excellent biocompatibility when implanted to human or animal body. Hydroxyapatite (HAP) powders have been used as fillers because HAP is the one of the most effective biocompatible materials with similarities to mineral constituents of bones and teeth. HAP powders (chemical formula Ca10(PO4)6 (OH)2) have been added to Co-Cr-Mo alloys in composition of 0 to 10 wt. %. The mixtures were then milled, cold compacted at 550 MPa, before sintered at 1100 and 1200°C in a tube furnace. The density, porosity, microhardness and compressive strength were measured. The composites that have been sintered at temperature 1200°C showed better physical and mechanical properties than those produced at 1100°C. After sintering at 1200°C, the samples show higher density, compared with the sample sintered at 1100°C. The sample with no HAP which have been sintered at 1200°C has the highest microhardness (208.9 HV), compared with the same sample sintered at 1100°C (194.3HV). As the temperature is increased from 1100 to 1200°C, the value of compressive strength increased from 184.538 to 341.086 MPa. Microstructural analysis for line scan showed that, as the sintering temperature was increased, there was good interface bonding between HAP particles and matrix F-75.
format	Article
author	Nur Maizatul Shima Adzali, Shamsul Baharin Jamaludin, Mohd Nazree Derman,
spellingShingle	Nur Maizatul Shima Adzali, Shamsul Baharin Jamaludin, Mohd Nazree Derman, Effect of sintering on the physical and mechanical properties of Co-Cr-Mo (F-75)/HAP composites
author_facet	Nur Maizatul Shima Adzali, Shamsul Baharin Jamaludin, Mohd Nazree Derman,
author_sort	Nur Maizatul Shima Adzali,
title	Effect of sintering on the physical and mechanical properties of Co-Cr-Mo (F-75)/HAP composites
title_short	Effect of sintering on the physical and mechanical properties of Co-Cr-Mo (F-75)/HAP composites
title_full	Effect of sintering on the physical and mechanical properties of Co-Cr-Mo (F-75)/HAP composites
title_fullStr	Effect of sintering on the physical and mechanical properties of Co-Cr-Mo (F-75)/HAP composites
title_full_unstemmed	Effect of sintering on the physical and mechanical properties of Co-Cr-Mo (F-75)/HAP composites
title_sort	effect of sintering on the physical and mechanical properties of co-cr-mo (f-75)/hap composites
publisher	Universiti Kebangsaan Malaysia
publishDate	2013
url	http://journalarticle.ukm.my/6687/ http://journalarticle.ukm.my/6687/ http://journalarticle.ukm.my/6687/1/11_Nur_Maizatul_Shima.pdf
first_indexed	2023-09-18T19:47:36Z
last_indexed	2023-09-18T19:47:36Z
_version_	1777406004219084800

Effect of sintering on the physical and mechanical properties of Co-Cr-Mo (F-75)/HAP composites

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