Abstract
A novel coating process to apply a titanium nitride film on metallic substrates has been developed. The new process differs from all others in that the coating is thermally grown from a predeposited titanium-nickel alloy applied by hot dipping. The coating consists of an outer TiN thin film and an inner TiNi layer next to the original substrate surface. The interdiffusion of titanium from the predeposited layer and iron from the substrate across the interface provides excellent bonding between the coating and the substrate. Auger electron spectroscopy, X-ray photoelectron spectroscopy and scanning electron microscopy were used to characterize the coating morphology, composition and microstructure. The new technique is simple, capable of coating complex shapes and potentially applicable to other coatings. The coating produced is crack free, uniform in thickness, has excellent adhesion to the substrate and can be easily regrown when its life is used up by heating in pure nitrogen.
| Original language | English |
|---|---|
| Pages (from-to) | 1047-1055 |
| Number of pages | 9 |
| Journal | Surface and Coatings Technology |
| Volume | 44 |
| Issue number | 1-3 |
| State | Published - 1 Jan 1990 |
ASJC Scopus subject areas
- General Chemistry
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry