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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/12654
Title: Compression Molded Ultra High Molecular Weight Polyethylene-Hydroxyapatite-Aluminum Oxide-Carbon Nanotube Hybrid Composites forHard Tissue Replacement
Authors: Gupta A.
Tripathi G.
Lahiri, Debrupa
Balani K.
Published in: Journal of Materials Science and Technology
Abstract: Ultra high molecular weight polyethylene (UHMWPE) is widely used for articulating surfaces in total hip and knee replacements. In the present work, UHMWPE based polymer composites were synthesized by synergistic reinforcing of bioactive hydroxyapatite (HA), bioinert aluminum oxide (Al2O3), and carbon nanotubes (CNTs) using compression molding. Phase and microstructural analysis suggests retention of UHMWPE and reinforcing phases in the compression molded composites. Microstructural analysis elicited variation in densification due to the size effect of the reinforcing particles. The hybrid composites exhibited hardness, elastic modulus and toughness comparable to that of UHMWPE. The interfacial effect of reinforcement phases has evinced the effectiveness of Al2O3 over HA and CNT reinforcements, depicting synergistic enhancement in hardness and elastic modulus. Weak interfacial bonding of polymer matrix with HA and CNT requires utilization of coupling agents to achieve enhanced mechanical properties without deteriorating cytocompatible properties. © 2013 .
Citation: Journal of Materials Science and Technology (2013), 29(6): 514-522
URI: https://doi.org/10.1016/j.jmst.2013.03.010
http://repository.iitr.ac.in/handle/123456789/12654
Issue Date: 2013
Keywords: Aluminum oxide (Al2O3)
Carbon nanotubes (CNTs)
Compression molding
Hydroxyapatite
Nanoindentation
Ultra high molecular weight polyethylene (UHMWPE)
ISSN: 10050302
Author Scopus IDs: 57207924606
9279635300
26326345700
8218235100
Author Affiliations: Gupta, A., Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
Tripathi, G., Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
Lahiri, D., Department of Mechanical and Materials Engineering, Florida International University, Miami, FL 33174, United States
Balani, K., Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India
Funding Details: This research is funded by the Department of Biotechnology (DBT), Govt. of India . Authors acknowledge Prof. Bikramjit Basu, Indian Institute of Science, Bangalore, for his useful discussion, and Prof. Arvind Agarwal, Florida International University, Miami, for assisting with the nanoindentation of samples. Authors thank Celanese International Corporation, Mumbai, India for providing UHMWPE.
Corresponding Author: Balani, K.; Department of Materials Science and Engineering, Indian Institute of Technology Kanpur, Kanpur 208016, India; email: kbalani@iitk.ac.in
Appears in Collections:Journal Publications [MT]

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