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Proceedings Paper

Ceramic coating of metal by laser heat treatment at ambient pressure and temperature
Author(s): Pierre A. Picouet; Daniel McStay; Catherine Hunter; Kenneth Tonge
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Paper 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.

Paper Details

Date Published: 1 February 2000
PDF: 8 pages
Proc. SPIE 3885, High-Power Laser Ablation II, (1 February 2000); doi: 10.1117/12.376957
Show Author Affiliations
Pierre A. Picouet, The Robert Gordon Univ. (United Kingdom)
Daniel McStay, The Robert Gordon Univ. (United Kingdom)
Catherine Hunter, The Robert Gordon Univ. (United Kingdom)
Kenneth Tonge, The Robert Gordon Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 3885:
High-Power Laser Ablation II
Claude R. Phipps; Masayuki Niino, Editor(s)

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