Tribological analysis of alumina nanocomposites for orthopedics applications

Carlos Morillo, Yoshinori Sawae, Teruo Murakami

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study the tribological analysis of Al 2O 3 nanocomposites/Al 2O 3 pair; proposed as a candidate material to fabricate hip prostheses was carried out. Nanopowders of Al 2O 3 (AKP 50, 300 nm), TiO 2 (PS-25, 50 nm) and Co metallic powder (Nilaco, 28 nm) were mixed and hot pressed. Wear test was carried out in a pin-on-plate tribometer, with a frequency of 1 Hz, a load of 49 N, for 4h; the counterface used was Al 2O 3. Mechanical properties as Vickers hardness, fracture toughness and Young's modulus were estimated using the indentation method. Distilled water and fetal bovine serum solution (FBSS) were used as environment. It was found that the specific wear rate of Al 2O 3 nanocomposites was about 10 -8 mm 3/N*m and the coefficients of friction were around 0.3-0.5 for FBSS. Worn surfaces were observed using SEM.

Original languageEnglish
Title of host publication2008 Proceedings of the STLE/ASME International Joint Tribology Conference, IJTC 2008
Pages127-129
Number of pages3
Publication statusPublished - 2009
Event2008 STLE/ASME International Joint Tribology Conference, IJTC 2008 - Miami, FL, United States
Duration: Oct 20 2008Oct 22 2008

Other

Other2008 STLE/ASME International Joint Tribology Conference, IJTC 2008
CountryUnited States
CityMiami, FL
Period10/20/0810/22/08

Fingerprint

Aluminum Oxide
Orthopedics
Nanocomposites
Alumina
Wear of materials
Hip prostheses
Vickers hardness
Indentation
Powders
Fracture toughness
Elastic moduli
Friction
Mechanical properties
Scanning electron microscopy
Water

All Science Journal Classification (ASJC) codes

  • Fluid Flow and Transfer Processes
  • Process Chemistry and Technology
  • Mechanical Engineering

Cite this

Morillo, C., Sawae, Y., & Murakami, T. (2009). Tribological analysis of alumina nanocomposites for orthopedics applications. In 2008 Proceedings of the STLE/ASME International Joint Tribology Conference, IJTC 2008 (pp. 127-129)

Tribological analysis of alumina nanocomposites for orthopedics applications. / Morillo, Carlos; Sawae, Yoshinori; Murakami, Teruo.

2008 Proceedings of the STLE/ASME International Joint Tribology Conference, IJTC 2008. 2009. p. 127-129.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Morillo, C, Sawae, Y & Murakami, T 2009, Tribological analysis of alumina nanocomposites for orthopedics applications. in 2008 Proceedings of the STLE/ASME International Joint Tribology Conference, IJTC 2008. pp. 127-129, 2008 STLE/ASME International Joint Tribology Conference, IJTC 2008, Miami, FL, United States, 10/20/08.
Morillo C, Sawae Y, Murakami T. Tribological analysis of alumina nanocomposites for orthopedics applications. In 2008 Proceedings of the STLE/ASME International Joint Tribology Conference, IJTC 2008. 2009. p. 127-129
Morillo, Carlos ; Sawae, Yoshinori ; Murakami, Teruo. / Tribological analysis of alumina nanocomposites for orthopedics applications. 2008 Proceedings of the STLE/ASME International Joint Tribology Conference, IJTC 2008. 2009. pp. 127-129
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