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Atomic environment changes in titanium-hydroxyapatite sintered powders induced by mechanical strain

V. SIMON1,* , D. LAZĂR1, C. POPA2, A. F. TAKÁCS3, M. NEUMANN3, S. SIMON1

Affiliation

  1. Babes-Bolyai University, Faculty of Physics, 400084 Cluj-Napoca, Romania
  2. Technical University of Cluj-Napoca, Faculty of Materials Science and Engineering, Cluj-Napoca 400020, Romania
  3. University of Osnabrück, Physics Department, 49069 Osnabrück, Germany

Abstract

The effects of mechanical strains induced in titanium-hydroxyapatite sintered powders compressed under different pressures are investigated using X-ray photoelectron and electron spin resonance spectroscopic data. New cationic sites with modified electronic charge densities are evidenced. Hydroxyl species which increase the surface ability for self-assembly of nanoscale hydroxyapatite like structures on endosseous implants are evidenced on the surface of samples compressed at higher pressure..

Keywords

Titanium-hydroxyapatite, Mechanical strain, Oxygen vacancy, XPS, EPR.

Submitted at: Nov. 15, 2006
Accepted at: March 15, 2007

Citation

V. SIMON, D. LAZĂR, C. POPA, A. F. TAKÁCS, M. NEUMANN, S. SIMON, Atomic environment changes in titanium-hydroxyapatite sintered powders induced by mechanical strain, Journal of Optoelectronics and Advanced Materials Vol. 9, Iss. 3, pp. 587-590 (2007)