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Preliminary Characterization of Zr9Ni11 Alloy for Its Tritium Gettering Property in In-Ditu Irradiation Test

Kunihiko Tsuchiya, Hideki Imaizumi, Hiroshi Kawamura, Rokuro Oyamada, Toshiyuki Kabutomori, Yuichi Wakisaka

Fusion Science and Technology / Volume 28 / Number 3P2 / October 1995 / Pages 1431-1436

Tritium Storage, Distribution, and Transportation / Proceedings of the Fifth Topical Meeting on Tritium Technology In Fission, Fusion, and Isotopic Applications Belgirate, Italy May 28-June 3, 1995 / dx.doi.org/10.13182/FST95-A30613

An in-situ irradiation test of a fusion blanket is planned in JMTR (Japan Materials Testing Reactor) using lithium containing ceramics as the tritium breeder and beryllium as the neutron multiplier. Therefore, it is necessary to develop getters for the recovery of the tritium gas. In this study, Zr9Ni11 alloy was chosen as a getter, and pressure-composition isotherms between 20°C and 300°C, and other properties were measured for its application. The breakthrough test of hydrogen was carried out with Ar+H2 gas. The evaluation of the examined getter materials leads to the conclusion that the Zr9Ni11 alloy may be used for the in-situ irradiation test of fusion blanket.