Zr9Ni11合金を充填したトリチウム貯蔵容器の性能試験

概要

論文の詳細を見る
Reliable techniques for storage, supply and recovery of tritium gas are indispensable to ensure safe handling of amounts of tritium. From this viewpoint, we made a tritium container packed with Zr9Ni11 alloy (1.5g) in order to examine its feasibility by using deuterium gas an alternative of tritium. This container was made of 316 stainless steel with double containment concept and equipped with a handmade ohmic heater. This heater was able to elevate the temperature of the container up to 500℃will small power of 65 W. The as-received Zr9Ni11 alloy used consisted of a mixture of intermetallic compounds such as ZrNi, Zr9Ni11 and Zr7Ni10. It was easily activated with vacuum heating at 400℃ for 1 hr. It was revealed that the container is applicable to supply tritium gas of about 1 atm at 350℃ and to recover it with considerably high absorption rate at room temperature. Apparent absorption rate, however, has significantly been affected by desorption of the deuterium ad/absorbed on/in the inner tube of the container.