Journal article
Fabrication of compositionally and structurally graded Ti-TiO2 structures using laser engineered net shaping (LENS)
Acta biomaterialia, Vol.5(5), pp.1831-1837
06/2009
Handle:
https://hdl.handle.net/2376/112453
PMID: 19233752
Abstract
Novel structures with functional gradation in composition and structure were successfully made in Ti-TiO(2) combination using laser engineered net shaping. The addition of fully dense, compositionally graded TiO(2) ceramic on porous Ti significantly increased the surface wettability and hardness. The graded structures with varying concentrations of TiO(2) on the top surface were found to be non-toxic and biocompatible. In addition, the higher wettability of surfaces with TiO(2) can enhance their ability to form chemisorbed lubricating films, which can potentially lower the friction coefficient against ultrahigh molecular weight polyethylene liner, thus reducing its wear rate. These unitized structures with open porosity on one side and hard, low friction surface on the other side can eliminate the need for multiple parts with different compositions for load-bearing implants such as total hip prostheses.
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Details
- Title
- Fabrication of compositionally and structurally graded Ti-TiO2 structures using laser engineered net shaping (LENS)
- Creators
- Vamsi Krishna Balla - W. M. Keck Biomedical Materials Research Laboratory, School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164-2920, USAPaul Duteil DeVasConCellosWeichang XueSusmita BoseAmit Bandyopadhyay
- Publication Details
- Acta biomaterialia, Vol.5(5), pp.1831-1837
- Academic Unit
- Mechanical and Materials Engineering, School of
- Publisher
- England
- Identifiers
- 99900547886801842
- Language
- English
- Resource Type
- Journal article