Enhanced thermal stability by introducing TiN diffusion barrier layer between W and SiC
- Shanghai Jiao Tong Univ. (China). National Key Lab. of Science and Technology on Micro/Nano Fabrication; Univ. of California, Berkeley, CA (United States)
- Univ. of California, Berkeley, CA (United States)
Abstract The combination of W and SiC has many applications such as a hot cell of a thermionic energy converter, nuclear material, and high temperature microelectronics. In this study, a 2 µm thick TiN film is introduced as a diffusion barrier between SiC and W to avoid the inter‐diffusion reaction at high temperature. The effect of annealing temperature on the surface morphology and microstructure of the TiN film is studied to explore its high temperature stability. Then 500 nm W film is sputtered on the TiN film to characterize the inter‐diffusion and stability of the W/TiN/SiC multilayer at 1100°C by XRD, Raman spectroscopy and cross‐sectional EDS mapping techniques. The results indicate that the W/TiN/SiC multilayer is very stable even when heated at 1100°C for 25 hours.
- Research Organization:
- Stanford Univ., CA (United States)
- Sponsoring Organization:
- USDOE Advanced Research Projects Agency - Energy (ARPA-E); USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AR0000664; AC02-05CH11231; DE‐AR0000664
- OSTI ID:
- 1613676
- Alternate ID(s):
- OSTI ID: 1498578
- Journal Information:
- Journal of the American Ceramic Society, Vol. 102, Issue 9; ISSN 0002-7820
- Publisher:
- American Ceramic SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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journal | December 2019 |
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