Effect of Surface Pretreatment on Morphology and Microhardness on Carbon Coating Using PVD
| Periodical | Advanced Materials Research (Volumes 472 - 475) |
|---|---|
| Main Theme | Advanced Manufacturing Technology |
| Edited by | Wenzhe Chen, Xipeng Xu, Pinqiang Dai, Yonglu Chen and Zhengyi Jiang |
| Pages | 50-54 |
| DOI | 10.4028/www.scientific.net/AMR.472-475.50 |
| Citation | D.N. Awang Shri et al., 2012, Advanced Materials Research, 472-475, 50 |
| Online since | February, 2012 |
| Authors | D.N. Awang Shri, J. Ramli, N.A. Alang, M.M. Mahat |
| Keywords | Coating Technology, Cutting Tool, PVD, Surface Pretreatments |
| Price | US$ 28,- |
Alumina (Al2O3) cutting tools have been coated with carbon coating using physical vapor deposition (PVD) to improve its wear resistance. The cutting tools were subjected to surface pretreatments namely blasting and acid etching to improve the coating adhesion onto the substrates. The effects of pretreatments on the cutting tools topography prior to deposition were investigated using atomic force microscopy (AFM) while the surface morphology was investigated using scanning electron microscopy (SEM). The adhesion strength of the carbon coating was investigated using microscratch. This study shows that although the coating were deposited evenly on the surface, the cutting tool that was blasted prior to deposition has better adhesion strength when compared to acid etching and no-pretreatment.
