Laser Cladding Applied to the Construction of PFC's with Integral Tritium Diffusion Barriers (Final Report)
- Nanohmics, Inc., Austin, TX (United States)
This report summarizes progress during the performance period of 02 February 2013 through 02 December 2013 for contract number DE-SC0009685. During this period Nanohmics Inc., in partnership with Dr. Y. C. Shin of Purdue Universities’ Mechanical Engineering Department, have successfully developed a design and a process for constructing PFC tiles suitable for incorporation in fusion reactors. The tiles consist of an ODS steel substrate with tungsten cladding, an integral SiC tritium diffusion barrier layer and a top cap of tungsten. The close match of the coefficient of linear expansion (CTE) between the tungsten and the SiC layer allow high temperature operation without layer delamination of cracking. Furthermore, similar samples constructed by Nanohmics were tested at MIT’s Plasma Science Fusion Center and demonstrated the SiC layer to be an excellent barrier for hydrogen isotope diffusion. The cladding process for applying tungsten to the ODS substrate is unique and provides a quick means of joining complex ODS structures to tungsten layers.
- Research Organization:
- Nanohmics, Inc., Austin, TX (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- SC0009685;
- OSTI ID:
- 1150747
- Type / Phase:
- SBIRL
- Report Number(s):
- DE-SC0009685--FINAL REPORT
- Country of Publication:
- United States
- Language:
- English
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