NDLI: A tribological and biomimetic study of PI–CNT composites for cartilage replacement

Content Provider	Springer Nature Link
Author	Ribeiro, R. Banda, S. Ounaies, Z. Ucisik, H. Usta, M. Liang, H.
Copyright Year	2011
Abstract	This article presents an investigation into the possible matching of mechanical properties of a polyimide (PI)–carbon nanotube (CNT) composite system to natural cartilage tissue. Currently used ultrahigh molecular weight polyethylene (UHMWPE) used in total joint replacements presents certain drawbacks due to a mismatch in mechanical and tribological properties with those of a natural bone joint. Natural cartilage tissue is a composite material itself, being composed of collagen fibers, hydrophilic proteoglycan molecules, cells and other constituents. The current investigation attempts to mimic the mechanical and tribological properties of natural cartilage tissue by varying the CNT concentration in a PI matrix. Nanoindentation and pin-on-flat tribological tests were conducted for this purpose. It was found that the coefficient of friction (COF) reached a minimum at a concentration of 0.5% CNT (by volume) when articulated against Ti6Al4V alloy. When articulated against Ti6Al4V alloy in the presence of a lubricant, the minimum COF was obtained at a concentration of 0.2% CNT. The maximum penetration depth under nanoindentation varied with CNT concentration and indicated that the mechanical properties could be tailored to match that of cartilage tissue. A closer investigation into this behavior was carried out using scanning electron, transmission electron, and atomic force microscopy. It was noticed that there is good bonding between the CNTs and polyimide matrix. There was a ductile to brittle transition as the concentration of CNT was increased. Competing interactions between nanotube–matrix and nanotube–nanotube are possible reasons for the deformation and friction behavior identified.
Starting Page	649
Ending Page	658
Page Count	10
File Format	PDF
ISSN	00222461
Journal	Journal of Materials Science
Volume Number	47
Issue Number	2
e-ISSN	15734803
Language	English
Publisher	Springer US
Publisher Date	2011-08-11
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Continuum Mechanics and Mechanics of Materials Mechanics Polymer Sciences Crystallography Materials Science Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Mechanics of Materials Mechanical Engineering Polymers and Plastics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Enhanced compressive response of hybrid Mg–CNT nano-composites

Mechanical and tribological behavior of clay–polypropylene nanocomposites

Review: Tribological behavior of polyethylene-based nanocomposites

Flexural and tribological properties of polyester-clay nanocomposites

Lubricious zinc oxide films: synthesis, characterization and tribological behaviour

Formation of opaque films by biomimetic process

Tribological properties of MoS$_{2}$ and carbon fiber reinforced polyimide composites

Tribological properties of PTFE composites filled with surface-treated carbon fiber

Sensitivity and dynamic electrical response of CNT-reinforced nanocomposites

A tribological and biomimetic study of PI–CNT composites for cartilage replacement

Similar Documents

Enhanced compressive response of hybrid Mg–CNT nano-composites

Mechanical and tribological behavior of clay–polypropylene nanocomposites

Review: Tribological behavior of polyethylene-based nanocomposites

Flexural and tribological properties of polyester-clay nanocomposites

Lubricious zinc oxide films: synthesis, characterization and tribological behaviour

Formation of opaque films by biomimetic process

Tribological properties of MoS$_{2}$ and carbon fiber reinforced polyimide composites

Tribological properties of PTFE composites filled with surface-treated carbon fiber

Sensitivity and dynamic electrical response of CNT-reinforced nanocomposites

A tribological and biomimetic study of PI–CNT composites for cartilage replacement