الفهرس 
AcknowledgmentOnly 14 pages are availabe for public view
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Abstract
Most of scientists and engineers think that hydrogen gas could be considered as a clean energy carrier. Due to its low densi ty and the difficulty of liquefaction, it was tried to store it in the form of hydrides of some intermetallic compounds with the possibility of recovery at any time by just warming or releasing the pressure above the hydride. A drawback of this process is that the total quantity of the stored gas could not be withdrawn at the same temperature and pressure used during storing. This phenomena is known as the hysteresis phenomena which is considered as a loss in the efficiency of the hydriding-dehydriding cycles.