Publication detail

Tribological investigation of diamond-like carbon coated micro-dimpled surface under bovine serum and osteoarthritis oriented synovial fluid

GHOSH, S. CHOUDHURY, D. ROY, T. MAMAT, A. MASJUKI, H. PINGGUAN-MURPHY, B.

Original Title

Tribological investigation of diamond-like carbon coated micro-dimpled surface under bovine serum and osteoarthritis oriented synovial fluid

Type

journal article in Web of Science

Language

English

Original Abstract

Osteoarthritis-oriented synovial fluid (OASF), i.e., that typical of a patient with osteoarthritis, has different physical and biological characteristics than bovine serum (BS), a lubricant widely used in biotribological investigations. Micro-dimpled and diamond-like carbon-(DLC) coated surfaces are key emerging interfaces for orthopedic implants. In this study, tribological performances of dimpled surfaces, with and without DLC coating, have been investigated under both BS and OASF. The friction tests were performed utilizing a pin on a disk tribometer, whereas contact pressure, speed, and temperature were simulated to a 'medium walking gait' of hip joint conditions. The mechanical properties of the specimen and the physical properties of the lubricant were characterized before the friction test. Raman analysis was conducted to identify the coating condition both before and after the test. The DLC-coated dimpled surface showed maximum hardness and residual stress. A DLC-coated dimpled surface under an OASF lubricated condition yielded a lower friction coefficient and wear compared to those of plain and dimpled specimens. The higher graphitization of coated materials with increasing load was confirmed by Raman spectroscopy.

Keywords

friction; wear; DLC; dimple; OA synovial fluid

Authors

GHOSH, S.; CHOUDHURY, D.; ROY, T.; MAMAT, A.; MASJUKI, H.; PINGGUAN-MURPHY, B.

Released

1. 6. 2015

Publisher

IOP Publishing

Location

BRISTOL

ISBN

1878-5514

Periodical

Science and Technology of Advanced Materials

Year of study

16

Number

3

State

Japan

Pages from

1

Pages to

11

Pages count

11

URL

https://www.tandfonline.com/doi/full/10.1088/1468-6996/16/3/035002

Full text in the Digital Library

http://hdl.handle.net/11012/201332

BibTex

@article{BUT163344,
  author="Subir {Ghosh} and Dipankar {Choudhury} and Taposh {Roy} and Azuddin Bin {Mamat} and Haji Hassan {Masjuki} and Belinda {Pingguan-Murphy}",
  title="Tribological investigation of diamond-like carbon coated micro-dimpled surface under bovine serum and osteoarthritis oriented synovial fluid",
  journal="Science and Technology of Advanced Materials",
  year="2015",
  volume="16",
  number="3",
  pages="1--11",
  doi="10.1088/1468-6996/16/3/035002",
  issn="1878-5514",
  url="https://www.tandfonline.com/doi/full/10.1088/1468-6996/16/3/035002"
}