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Applications open for the fall cohort of Mentor Match
Applications are officially open for the second cohort of the American Nuclear Society’s newly redesigned mentoring program. Mentor Match is a unique opportunity available only to ANS members that offers year-round mentorship and networking opportunities to Society members at any point in their education.
The deadline to apply for membership in the fall cohort, which will take place October 1–November 30, is September 17. The application form can be found here.
Satoshi Konishi, T. Nagasaki, T. Hayashi, K. Okuno
Fusion Science and Technology | Volume 26 | Number 3 | November 1994 | Pages 668-672
Plasma Fueling and Fuel Cycle | Proceedings of the Eleventh Topical Meeting on the Technology of Fusion Energy New Orleans, Louisiana June 19-23, 1994 | doi.org/10.13182/FST94-A40234
Articles are hosted by Taylor and Francis Online.
Behavior and improvement of the ZrCo based intermetallic materials for tritium recovery, storage and supply are studied. Compound ZrCo was found to be subject to disproportionation at high temperature under high hydrogen pressure to form ZrCo2 and ZrH2. This process is completely reversed by vacuum treatment at temperature above 500°C for several hours. Kinetics of the disproportionation was described to be similar to phase transition that have apparent incuvation time to take place. The logarithmic reaction rate constant was related to the reciprocal temperature. With some precautions drawn from the results, this reaction is not a problem in practice. For the application that needs prolonged supply of relatively high-pressure tritium, solid solution of ZrCo and HfCo was developed as an improvement of the material. Materials otained by arc melting with compoistion of Zr(1−x)HfxCo (0<x<0.5) exhibits single plateaus in pressure - composition isotherms when hydrogenated. Repeated hydrognation - dehydrogenation cycles did not generate separate ZrCo and HfCo phases. The equilibrium hydrogen pressure in the plateau regions are expressed as a functio of reciprocal temperature and increases with increasing HfCo contents. This material provides controlled equilibrium hydrogen pressure required for specific applications of tritium storage nad supply.
