Effects of mechanical milling on hydrogen storage properties of Ti0.32 Cr0.43 V0.25 alloy

Binod Kumar Singh; Gunchoo Shim; Sung Wook Cho

doi:10.1016/j.ijhydene.2007.07.010

Effects of mechanical milling on hydrogen storage properties of Ti_0.32 Cr_0.43 V_0.25 alloy

Binod Kumar Singh
, Gunchoo Shim
, Sung Wook Cho^*

^*Corresponding author for this work

Geography Education

Korea Institute of Geoscience and Mineral Resources

Research output: Contribution to journal › Journal article › peer-review

46 Scopus citations

Abstract

The hydrogen storage alloy of Ti_0.32 Cr_0.43 V_0.25 was prepared by arc melting and high energy ball milling. Effects of ball milling were studied for various time periods (30-300 min) at 200 rpm. The hydrogen storage capacity of the alloy decreased with the increase in milling time. The reasons for the drop in the hydrogen storage capacity are twofold: surface contamination of the alloy powder and the microstructural changes. The latter includes the increase in lattice strain, the decrease in crystallite size and the consequent increase in subgrain boundaries. Despite the microstructural changes, the BCC phase of the alloy was maintained and its lattice constant remained nearly the same.

Original language	English
Pages (from-to)	4961-4965
Number of pages	5
Journal	International Journal of Hydrogen Energy
Volume	32
Issue number	18
DOIs	https://doi.org/10.1016/j.ijhydene.2007.07.010
State	Published - 2007.12

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

BCC structure
Crystallite size
Hydrogen storage alloy
Lattice strain
Mechanical milling

Access to Document

10.1016/j.ijhydene.2007.07.010

Cite this

@article{0031076c8f734d448f994b94479f617c,

title = "Effects of mechanical milling on hydrogen storage properties of Ti0.32 Cr0.43 V0.25 alloy",

abstract = "The hydrogen storage alloy of Ti0.32 Cr0.43 V0.25 was prepared by arc melting and high energy ball milling. Effects of ball milling were studied for various time periods (30-300 min) at 200 rpm. The hydrogen storage capacity of the alloy decreased with the increase in milling time. The reasons for the drop in the hydrogen storage capacity are twofold: surface contamination of the alloy powder and the microstructural changes. The latter includes the increase in lattice strain, the decrease in crystallite size and the consequent increase in subgrain boundaries. Despite the microstructural changes, the BCC phase of the alloy was maintained and its lattice constant remained nearly the same.",

keywords = "BCC structure, Crystallite size, Hydrogen storage alloy, Lattice strain, Mechanical milling",

author = "Singh, \{Binod Kumar\} and Gunchoo Shim and Cho, \{Sung Wook\}",

year = "2007",

month = dec,

doi = "10.1016/j.ijhydene.2007.07.010",

language = "English",

volume = "32",

pages = "4961--4965",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

number = "18",

}

TY - JOUR

T1 - Effects of mechanical milling on hydrogen storage properties of Ti0.32 Cr0.43 V0.25 alloy

AU - Singh, Binod Kumar

AU - Shim, Gunchoo

AU - Cho, Sung Wook

PY - 2007/12

Y1 - 2007/12

N2 - The hydrogen storage alloy of Ti0.32 Cr0.43 V0.25 was prepared by arc melting and high energy ball milling. Effects of ball milling were studied for various time periods (30-300 min) at 200 rpm. The hydrogen storage capacity of the alloy decreased with the increase in milling time. The reasons for the drop in the hydrogen storage capacity are twofold: surface contamination of the alloy powder and the microstructural changes. The latter includes the increase in lattice strain, the decrease in crystallite size and the consequent increase in subgrain boundaries. Despite the microstructural changes, the BCC phase of the alloy was maintained and its lattice constant remained nearly the same.

AB - The hydrogen storage alloy of Ti0.32 Cr0.43 V0.25 was prepared by arc melting and high energy ball milling. Effects of ball milling were studied for various time periods (30-300 min) at 200 rpm. The hydrogen storage capacity of the alloy decreased with the increase in milling time. The reasons for the drop in the hydrogen storage capacity are twofold: surface contamination of the alloy powder and the microstructural changes. The latter includes the increase in lattice strain, the decrease in crystallite size and the consequent increase in subgrain boundaries. Despite the microstructural changes, the BCC phase of the alloy was maintained and its lattice constant remained nearly the same.

KW - BCC structure

KW - Crystallite size

KW - Hydrogen storage alloy

KW - Lattice strain

KW - Mechanical milling

UR - https://www.scopus.com/pages/publications/36549074615

U2 - 10.1016/j.ijhydene.2007.07.010

DO - 10.1016/j.ijhydene.2007.07.010

M3 - Journal article

AN - SCOPUS:36549074615

SN - 0360-3199

VL - 32

SP - 4961

EP - 4965

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 18

ER -