Rev. Phys. Appl. (Paris) 25, 1197-1204 (1990)
DOI: 10.1051/rphysap:0199000250120119700

A complex investigation of structure and properties of thermally sprayed Ni and Cu-based coatings

B. Gergov¹, I. Iordanova² et Ts. Velinov<sup>2

1</sup>  Institute of mine building, blvd. Chr. Kabakchiev 23, 1505 Sofia, Bulgaria
²  Sofia University, Faculty of Physics, blvd. A. Ivanov 5, 1126 Sofia, Bulgaria

Abstract
A number of experimental methods including X-ray analysis, optical and electron microscopy, porosity measurements and thermal wave interferometry are applied for investigation of the properties of thermally sprayed coatings. Some conclusions about the influence of the chemical composition and the technological parameters on the structure and mechanical properties of the coatings are drawn.

Résumé
Plusieurs méthodes expérimentales, notamment analyse par rayons X, microscopie optique et électronique, mesure de la porosité et interférence d'ondes thermiques sont appliquées afin de rechercher les propriétés des couches métallisées par projection thermique. Certaines conclusions concernant l'influence de la composition chimique et de la technologie sur la structure et les propriétés mécaniques et physiques des couches sont présentées.

PACS
6855 - Thin film growth, structure, and epitaxy.
6820 - Solid surface structure.
6860 - Physical properties of thin films, nonelectronic.
6825 - Mechanical and acoustical properties of solid surfaces and interfaces.

Key words
copper alloys -- electron microscope examination of materials -- interferometry -- mechanical properties of substances -- nickel alloys -- spray coatings -- surface structure -- X ray chemical analysis -- optical microscopy -- structure -- thermally sprayed Ni -- Cu based coatings -- X ray analysis -- electron microscopy -- porosity -- thermal wave interferometry -- thermally sprayed coatings -- chemical composition -- technological parameters -- mechanical properties -- Fe Si Ni Cr Al B W C -- Ni Al Cu