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CFS working with NVIDIA, Siemens on SPARC digital twin
Commonwealth Fusion Systems, a fusion firm headquartered in Devens, Mass., is collaborating with California-based computing infrastructure company NVIDIA and Germany-based technology conglomerate Siemens to develop a digital twin of its SPARC fusion machine. The cooperative work among the companies will focus on applying artificial intelligence and data- and project-management tools as the SPARC digital twin is developed.
E. Willin, M. Sirch, R.-D. Penzhorn, M. Devillers
Fusion Science and Technology | Volume 14 | Number 2 | September 1988 | Pages 756-763
Tritium Properties and Interactions with Material | Proceedings of the Third Topical Meeting on Tritium Technology in Fission, Fusion and Isotopic Applications (Toronto, Ontario, Canada, May 1-6, 1988) | doi.org/10.13182/FST88-A25226
Articles are hosted by Taylor and Francis Online.
Whereas titanium is a getter material mainly suitable for the long-term storage of tritium, zirconium cobalt alloy can also be employed for the interim storage and transport of this gas. Activated zirconium cobalt alloy reacts within minutes with hydrogen at room temperature. At the composition of ZrCoH0.8 the dissociation pressure at room temperature is estimated to be 10−3 Pa. The zirconium cobalt / H2 system is not pyrophoric at room temperature. Methane is partially cracked on Ti and on ZrCo at temperatures above 600 and 300°C respectively. With titanium the corresponding carbide is formed without affecting the storage properties of the getter. After reaction of ZrCo with CH4 or N2 the hydrogen absorption capacity is reduced. Titanium powder, sponge or sheet react with nitrogen at temperatures above 750°C with a parabolic rate law. In the overlayer of the metal substrate the phases N dissolved in α-Ti, Ti2N and TiN were identified. The same phases were observed when NH3 reacts with this metal.
