HYDROGEN STORAGE ALLOY AND ITS PRODUCTION

摘要

PURPOSE: To suppress pulverizing of hydrogen storage alloy by crystal orientation effect after pulverizing in the initial phase while easily pulverizing in the initial phase of storage/discharge of hydrogen. CONSTITUTION: An alloy molten metal 10 in a container 5 is jetted from the tip of a nozzle 6, an inert gas containing the fine powder of hydrogen storage material having the crystal structure different from that of molten metal is blown to the jet flow from an introducing pipe 9, the fine powder is taken into the inside of jet flow to be rapidly solidified. The hydrogen storage material is constituted so that a second alloy grain having the crystal structure different from that of a first alloy coexists in the crystal boundary of a first alloy in which the crystal is oriented in the fixed direction.