By T. S. Sudarshan, K. A. Khor, M. Jeandin
The forty six papers provided at this occasion hide demanding fabrics, Lasers and floor Melting, Electrodeposition and assessment of transformed Surfaces, Thermal Spray suggestions, Nitride Coatings and evaluate of changed Surfaces.
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Additional resources for Surface Modification Technologies XIII: Proceedings of a conference held in Singapore, 7-10 October 1999
Example text
The main difference is that Ar ions are attracted by the negative potential field applied and that increases the energy at which the ions collide with the substrate surface. This energy will increase proportionally with increasing bias potential. Other than transfer of energy, the bombarding ions also tend to increase the imperfections on the materials deposited on substrate by increasing the dislocation density. This project attempts to study the effects of variation in the negative bias voltage applied to the substrate during sputtering.
Resolving the stress in the radial and circumferential direction, it is seen that tensile stress acts in the circumferential direction while compressive stress acts in the radial direction. In both directions, the magnitude of the stress increases as the applied bias voltage increases. This result agrees in several aspects with those found by Bain et al. 3 Firstly, they detected tensile stresses in the tangential direction and compressive stresses in the radial direction. Secondly, it is common that the tensile stresses are lower in magnitude than the compressive stresses.
Terry Beach and Mr. Steve Bihari for their perfect work at manufacturing the apparatus for the new process. 0 References 1. Z. M. Bell, Process of Single Ion Beam Deposition of Diamond like Carbon Films on Steel Surface, (To be published). 2. S. K. S. Q. P. I. 7234-7240. 3. A. C. 3823-3830. 4. R. Locher, C. Wild, and P. 426-432. 5. K. Cheah, X. K. Tay, and E. 91-96. 6. H. Pierson, Handbook of Carbon, Graphite, Diamond and Fullerenes, Noyes Publications, New York, 1993. 7. H. Zhu, X. Liu, C. Ren, Y.