Abstract
Double-layer TiN/PSZ film coatings were deposited on Si wafers and WC-Co cutting tools from Ti-, Zr-, and Y-alkoxide solutions by thermal plasma chemical vapor deposition (CVD) containing water vapor. The partially stabilized zirconia (PSZ) layer was coated on a TiN film by oxidation of Zr- and Y-alkoxides with H2O supplied by both constant and step-wise methods. Double-layer TiN/PSZ coatings deposited on Si wafers and WC-Co by the two H2O supply methods were approximately 2 μm thick. TEM observation showed that the interface between the TiN and PSZ in the double-layer TiN/PSZ formed by the step-wise H2O supply is more adhesive than under constant H2O supply. Double-layer TiN/PSZ films coated on WC-Co substrates by the step-wise supply exhibited good crater wear resistance, comparable to a commercial double-layer TiN/Al2O3 coating by thermal CVD.
Original language | English |
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Pages (from-to) | 201-206 |
Number of pages | 6 |
Journal | Materials Science and Engineering B: Solid-State Materials for Advanced Technology |
Volume | 172 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2010 Aug 25 |
Externally published | Yes |
Keywords
- Chemical vapor deposition
- Partial stabilized zirconia
- Thermal plasma
- Thin films
- Wear resistance
ASJC Scopus subject areas
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering