Patent · US Expired

Magnesium mechanical alloys for thermal hydrogen storage

US5916381A · kind A · utility

10Cited by

3References

9Claims

0Family size

Assignee

Energy Conversion Devices, Inc. · US

Inventors

Krishna Sapru · Troy, US
Lu Ming · Troy, US
Subramanian Ramachandran · Milton, US

Key dates

Filing date	Oct 15, 1996
Grant date	Jun 29, 1999
Priority date	—
Expiry date	Oct 15, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S420/90
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

Mechanically alloyed hydrogen storage materials having a major atomic percentage of magnesium and a minor atomic percentage of at least two elements selected from the group consisting of nickel, molybdenum, iron and titanium. Preferably the mechanical alloy comprises a multi-phase material, including at least one amorphous phase. Also, the at least two elements are preferably either nickel (from about 5 to 15 at. %) and molybdenum (from about 0.5 to 5 at. %) or iron (from about 5 to 15 at. %) and titanium (from about 5 to 15 at. %). The hydrogen storage materials are created by mechanical alloying in a milling apparatus under an inert atmosphere, such as argon, or a mixed atmosphere, such as argon and hydrogen. The speed and length of the milling are varied.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.