발간논문

Home > KJMM 논문 > 발간논문

Vol.37, No.3, 369 ~ 377, 1999
Title
Research Paper / Meterials Processing : Formation of Mg2NiHx Hydrogen Absorbing Materials byHydrogen Induced Mechanical Alloying
홍태환Tae Whan Hong, 임재원Jae Won Lim, 김세광Shae Kwang Kim, 김영직Young Jig Kim, 박현순Hyun Soon Park
Abstract
For the economic manufacturing of Mg₂Ni hydrogen absorbing materials, Mg and Ni chips were mechanically alloyed under 20 bar`s hydrogen atmosphere. The homogeneous Mg₂NiH_x was formed after 48hr M.A (Mechanical Alloying). The hydrogen content of Mg₂NiH_x reaches 1.75wt.% and the dehydriding reaction starts at around 210℃ The specific magnetization value is reduced from 13.7 emu/g to 0.13 emu/g with respect to mechanical alloying time. The homogeneous Mg₂NiH_x composites were obtained after 96 hr M.A. They are composed of the crystalline matrix phase and the disordered interface phase which seems to be the reason of the elevated dehydriding kinetics and decreased magnetic intensity.
Key Words
| PDF
대한금속∙재료학회 │ (06633) 서울시 서초구 서초대로 56길 38 대한금속∙재료학회 회관 (서초1동 1666-12번지)
Tel : 070-4266-1646 │ FAX : 02-557-1080 │ E-mail : metal@kim.or.kr
Copyright ⓒ 2013 사단법인 대한금속∙재료학회 All rights reserved.