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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/12861
Title: Improvement in mechanical properties of plasma sprayed hydroxyapatite coatings by Al2O3 reinforcement
Authors: Mittal M.
Nath S.K.
Prakash S.
Published in: Materials Science and Engineering C
Abstract: Thermal sprayed hydroxyapatite coatings suffer from poor mechanical properties like tensile strength, wear resistance, hardness, toughness and fatigue. The mechanical properties of hydroxyapatite coatings can be enhanced via incorporation of secondary bioinert reinforcement material. In this study an attempt has been made to improve the mechanical properties of plasma sprayed hydroxyapatite by reinforcing it with 10, 20 and 30% Al2O 3. The plasma sprayed coatings have been characterized using FE-SEM/EDAX, XRD, AFM and FTIR spectroscopy. Corrosion studies have been done in simulated body fluid and abrasive wear studies have been performed on flat specimens on a disk wear tester. Microhardness, tensile strength and wear resistance are found to be increased with increasing Al2O3 content. All types of coatings show superior resistance against corrosion in simulated body fluid. © 2013 Elsevier B.V.
Citation: Materials Science and Engineering C (2013), 33(5): 2838-2845
URI: https://doi.org/10.1016/j.msec.2013.03.005
http://repository.iitr.ac.in/handle/123456789/12861
Issue Date: 2013
Keywords: AFM
Aluminum oxide
Bioceramic
Corrosion
FTIR
Wear
ISSN: 9284931
Author Scopus IDs: 7005578966
7102759700
36830433000
Author Affiliations: Mittal, M., Metallurgical and Materials Engineering Department, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
Nath, S.K., Metallurgical and Materials Engineering Department, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
Prakash, S., Metallurgical and Materials Engineering Department, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
Corresponding Author: Mittal, M.; Metallurgical and Materials Engineering Department, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India; email: manojmittal74@yahoo.com
Appears in Collections:Journal Publications [MT]

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