Title(Kor) TiMn2계 수소저장합금의 수소화에 따른 부피팽창
Title(Eng) Volume Expansion of TiMn2-type Hydrogen Storage Alloy with Hydrogenation
Keyword Hydrogen storage alloy(수소저장합금), AB2 alloy (AB2 합금), Volume expansion(
Author(Kor) 박충년†
Author(Eng) CHOONG-NYEON PARK†
Date 2017-10
Attach file 05-17-08-26(박충년)-459.pdf
Page Page. 459~464
Abstract(Kor)
Abstract(Eng)
The volume expansions of Ti0.95Zr0.05V0.4Mn1.45Fe0.1Cr0.05 alloy during hydrogenation with various conditions have been investigated. The theoretical volume expansion measured with XRD for this alloy with hydrogenation was 21%. The apparent volume expansion of this alloy ingot with hydrogenation was composed of two effects. One is a hydrogenation and the other is a pulverization. The apparent volume of free alloy powder was 1.8 times greater than that of an ingot, implying the pulverization effect on the apparent volume expansion is 80%. The apparent volume expansion of the alloy ingot with hydrogenation under a unconstrained condition was about 80 (±15)%, much smaller than that of free alloy powder which expected as 118%. In addition, The apparent volume expansion of the alloy ingot with hydrogenation under a constrained condition(Al container) was about 50%, much smaller than that of the unconsrained. This reduced apparent volume expansion of the alloy ingot could be attributed to an arrangement of alloy powder keeping its original shape of the ingot even after hydrogenation.



목록 뒤로가기