Optical and mechanical properties of nanocrystalline ZrC thin films grown by pulsed laser deposition.
- National Institute for Laser, Plasma, and Radiation Physics, Magurele (Romania)
- Univ. of Florida, Gainesville, FL (United States)
- Ramapo College of New Jersey, Mahwah, NJ (United States)
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Thin ZrC films (<500 nm) were grown on (100) Si substrates at a substrate temperature of 500 °C by the pulsed laser deposition (PLD) technique using a KrF excimer laser under different CH4 pressures. Glancing incidence X-ray diffraction showed that films were nanocrystalline, while X-ray reflectivity studies found out films were very dense and exhibited a smooth surface morphology. Optical spectroscopy data shows that the films have high reflectivity (>90%) in the infrared region, characteristic of metallic behavior. Nanoindentation results indicated that films deposited under lower CH4 pressures exhibited slightly higher nanohardness and Young modulus values than films deposited under higher pressures. As a result, tribological characterization revealed that these films exhibited relatively high wear resistance and steady-state friction coefficients on the order of μ = 0.4.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Organization:
- unfunded; USDOE National Nuclear Security Administration (NNSA)
- Grant/Contract Number:
- AC04-94AL85000
- OSTI ID:
- 1236229
- Alternate ID(s):
- OSTI ID: 1247552
- Report Number(s):
- SAND-2015-0364J; 562238
- Journal Information:
- Applied Surface Science, Vol. 352, Issue C; ISSN 0169-4332
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Reactive carbothermal reduction of ZrC and ZrOC using Spark Plasma Sintering
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journal | October 2018 |
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