GETTER MATERIAL FOR VACUUM HEAT INSULATION OF LIQUID HYDROGEN- STORING VESSEL OR ITS TRANSPORTATION LINE

摘要

A getter material which efficiently sorbs gases at low pressure but, when a system failure cau'ses high pressures of hydrogen and oxygen of air to be present, does not increase its temperture to that which would cause explosive ignition of the hydrogen-oxygen mixture, comprises an alloy having the general formula Zr1-a Tia V2-x Fex-y Niy in which a = 0-0.3; x = 0.5-1.5; y = 0-x. u