Ceramic coating of metal by laser heat treatment at ambient pressure and temperature

Pierre A. Picouet; Daniel McStay; Catherine Hunter; Kenneth Tonge

doi:10.1117/12.376957

1 February 2000 Ceramic coating of metal by laser heat treatment at ambient pressure and temperature

Pierre A. Picouet, Daniel McStay, Catherine Hunter, Kenneth Tonge

Proceedings Volume 3885, High-Power Laser Ablation II; (2000) https://doi.org/10.1117/12.376957
Event: Advanced High-Power Lasers and Applications, 1999, Osaka, Japan

Abstract

Initial results for a new laser based procedure to make ceramic coatings on ferrous metals are described. The procedure is performed at ambient temperature and pressure to avoid the use of a vacuum chamber. An Nd:YAG laser beam (1064 nm) coupled to a mechanical scanner is used to produce coating. The coating precursor materials are sprayed onto the metal sample before the laser-generated heat treatment. A jet of argon gas is used to avoid oxidation of the metallic substrate. The principal ingredients of the coating precursor are sodium tetraborate and a natural clay mineral. The product is a glassy ceramic. The product has been characterized by scanning electron microscopy, optical microscopy and hardness and adhesion tests. The results indicate that the surface material is a micrometric, single layer which adheres to the metal surface.

Citation Download Citation

Pierre A. Picouet, Daniel McStay, Catherine Hunter, and Kenneth Tonge "Ceramic coating of metal by laser heat treatment at ambient pressure and temperature", Proc. SPIE 3885, High-Power Laser Ablation II, (1 February 2000); https://doi.org/10.1117/12.376957

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