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- Title
Effect of Nano-Sized TiN Additions on the Electrical Properties of Vacuum Cold Sprayed SiC Coatings.
- Authors
Liu, Y.; Wang, Y.-Y.; Yang, G.-J.; Feng, J.-J.; Kusumoto, K.
- Abstract
Three different contents of nano-sized TiN powers of 20 nm in size were added to nano-sized SiC powders of 40 nm. Vacuum cold spray (VCS) process was used to deposit SiC-TiN composite coatings on AlO substrates. Microstructure and phase structure analysis of the samples was performed by scanning electron microscopy (SEM) and x-ray diffraction (XRD). Sheet resistance of the VCS coatings was measured using a four-point probe method. The influences of TiN additions on the electrical resistivity of SiC-TiN composite coatings and the conductive mechanisms were investigated. The electrical resistivity of SiC-TiN coatings decreases with increasing TiN contents, reaching a minimum of 1.82 Ω m with 50 mol% TiN.
- Subjects
SCANNING electron microscopy; DIFFRACTIVE scattering; SUBSTRATES (Materials science); SURFACE coatings; COMPOSITE materials
- Publication
Journal of Thermal Spray Technology, 2010, Vol 19, Issue 6, p1238
- ISSN
1059-9630
- Publication type
Article
- DOI
10.1007/s11666-010-9544-6