Journal article
High temperature in-situ phase stability of sputtered TiAlxN coatings
Journal of Alloys and Compounds, Vol.786, pp.507-514
2019
Abstract
The temperature dependence of phase composition and lattice parameters, for TiAlxN thin film coating, are experimentally investigated by in-situ synchrotron radiation X-ray diffraction (SR-XRD), at temperatures between 25 °C and 700 °C. Mechanical properties, such as: Young's modulus (E), hardness (H) and plastic deformation index (PDI) – were experimentally determined by nanoindentation, at 25 °C. Crystalline structural analysis, of SR-XRD results, indicates the major phases are TiN and AlN; with Ti2O and TiO2 phases also present above 600 °C. The lattice constants increased with an increase in temperature. Atomic and phase compositions, at 25 °C, were also verified by X-ray photoelectron spectroscopy (XPS). Field emission scanning electron microscopy (FESEM) images display an increase in surface roughness and reduction in grain size, with increasing Aluminium percentage (Al%). Nanoindentation analysis showed a maximum hardness of 25.1 ± 1.5 GPa (sample containing 12% Al), which was subsequently reduced upon addition of more Aluminium. Finite element modelling (FEM), including von Mises stress distribution, indicates lower mechanical integrity, for samples with high Al% content.
Details
- Title
- High temperature in-situ phase stability of sputtered TiAlxN coatings
- Authors/Creators
- S.B. Patel (Author/Creator)E. Mohammadpour (Author/Creator)N. Mondinos (Author/Creator)X. Zhao (Author/Creator)J-P Veder (Author/Creator)Z. Zhou (Author/Creator)T.S.Y. Moh (Author/Creator)W.Y. Hsien Liew (Author/Creator)S. Lee (Author/Creator)Z-T Jiang (Author/Creator)
- Publication Details
- Journal of Alloys and Compounds, Vol.786, pp.507-514
- Publisher
- Elsevier
- Identifiers
- 991005545339207891
- Copyright
- © 2019 Published by Elsevier B.V.
- Murdoch Affiliation
- School of Engineering and Information Technology
- Language
- English
- Resource Type
- Journal article
Metrics
56 File views/ downloads
48 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 5 Physics
- 5.188 Deposition, Hardening & Coating
- 5.188.318 Nitride Coatings
- Web Of Science research areas
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Metallurgy & Metallurgical Engineering
- ESI research areas
- Materials Science