Effect of laser irradiation on adhesion strength of diamond films on WC-6wt%Co hard metal substrate
- Univ. of Science and Technology, Beijing (China); and others
Effect of laser irradiation pre-treatment on adhesion strength of diamond films on WC-6wt% Co hard metal substrate was studied. Adhesion strength of diamond films on the hard metal substrate were measured by the Scraper Test, and were compared to those deposited in identical conditions but the substrate were subjected to etching in acidic solution. It was found that at a film thickness of 2-6{mu}m, laser pre-treatment almost doubled the adhesion strength as compared to acid etching pre-treatment. Detailed SEM examinations confirmed the mechanisms suggested by the present authors in their earlier work that the improvement in adhesion strength by laser pre-treatment was due to the surface Co depletion and surface modification by the high power density laser beam.
- OSTI ID:
- 230042
- Report Number(s):
- CONF-950840-; TRN: 96:000433-0041
- Resource Relation:
- Conference: International conference on applications of diamond films and related materials, Gaithersburg, MD (United States), 21-24 Aug 1995; Other Information: PBD: 1995; Related Information: Is Part Of Applications of diamond films and related materials: Third international conference; Feldman, A.; Yarbrough, W.A.; Murakawa, Masao; Tzeng, Yonhua; Yoshikawa, Masanori [eds.]; PB: 973 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
Improvement of adhesion of diamond coatings to WC(Co) tool substrates
Nucleation and adhesion of diamond films on Co cemented tungsten carbide