2015 Fiscal Year Final Research Report

Hydrogen absorption and desorption amount and temperature of Mg based alloys improved with fined, thinned and multilayered.

Research Project

Project/Area Number	25420035
Research Category	Grant-in-Aid for Scientific Research (C)
Allocation Type	Multi-year Fund
Section	一般
Research Field	Materials/Mechanics of materials
Research Institution	Meiji University
Principal Investigator	notomi mitsuo 明治大学, 理工学部, 教授 (70218288)
Research Collaborator	中島洋平前田直樹山崎大輔橋本卓磨伊藤秀平吉平拓朗山田優一朗
Project Period (FY)	2013-04-01 – 2016-03-31
Keywords	水素吸蔵合金 / 水素貯蔵材料
Outline of Final Research Achievements	Magnesium is one of alternative materials for hydrogen storage since that is abundant and reasonable resource although the high temperature more than 300 °C is needed for nucleating its hydride and dissolving and what is a barrier of the application to automobile and so on. Alloying it to some transition metals might be one of the solutions to improving the property and it has not been got the enough result for the application. It was shown that the three kinds of processing, grinding the crystal grain by mechanical alloying, thinning the film by vacuum deposition and super-layering thin film by cold pressing are effective for better hydrogen absorption and desorption. It was also shown that the activated Knudsen flow developed the amount of hydrogen absorption and desorption for LaNi5 property.
Free Research Field	材料力学，機械材料