Abstract
Cemented carbide (WC-6%Co) inserts were coated with 3-4 μm TiC by chemical vapor deposition at 1200 °C. High resolution electron microscopic observation showed the presence of Co6W6C (n1-phase) around the interface WC-Co, on top of which a TiC film 50-100 nm in size was observed. There was no particular crystallographic orientation relationship between the n1-phase and TiC films. The presence of W atoms in the films was confirmed using EDX by focusing an electron beam of size approximately 5 nm. In addition, the Σ = 2 boundary, which was attributed to the identical c/a ratio of WC, was observed between WC-WC grains.
Original language | English |
---|---|
Pages (from-to) | 268-275 |
Number of pages | 8 |
Journal | Surface and Coatings Technology |
Volume | 79 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - 1996 Feb |
Externally published | Yes |
Keywords
- Cemented carbide
- High resolution electron microscopy
- Interface
- TiC film
- η-phase
ASJC Scopus subject areas
- Chemistry(all)
- Condensed Matter Physics
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry