| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1683509 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2007 | 5 Pages |
Abstract
Among ceramics, alumina is being widely used as biomaterials now these days. It is being used as hip joints, tooth roots etc. Ion implantation has been employed to modify its surface without changing it bulk properties. 30Â keV nitrogen with varying ion dose ranging from 5Â ÃÂ 1015Â ions/cm2 to 5Â ÃÂ 1017Â ions/cm2 is implanted in alumina. Surface morphology has been studied with optical microscope and atomic force microscope (AFM). Improvement in brittleness has been observed with the increase in ion dose. Compound formation and changes in grain size have been studied using X-Ray diffraction (XRD). AlN compound formation is also observed by Fourier transform infrared spectroscopy (FTIR). The change in the grain size is related with the nanohardness and Hall-Petch relationship is verified.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
Deep Shikha, Usha Jha, S.K. Sinha, P.K. Barhai, G. Sarkhel, K.G.M. Nair, S. Dash, A.K. Tyagi, D.C. Kothari,