Patent · US Expired

Method of making a titanium-containing hydrogen storage alloy

US4643874A · kind A · utility

2Cited by

1References

3Claims

0Family size

Assignee

GfE Gesellschaft fur Elektrometallurgie mbH · DE

Inventors

Rudolf Fichte · Nuremberg, DE
Hans-Joachim Retelsdorf · Zirndorf, DE
Peter Kunert · Laufenbürg, DE

Key dates

Filing date	Mar 22, 1985
Grant date	Feb 17, 1987
Priority date	—
Expiry date	Mar 22, 2005

Classification

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

Abstract

Titanium-containing hydrogen storage alloys with a Laves phase composition AB.sub.2 are made in which the A component is titanium and possibly an element from the start of the transition metal groups of the Periodic Table. According to the invention a titanium-free prealloy is first formed and this prealloy is comminuted and smelted again with addition of titanium and possibly zirconium in a second vacuum furnace stage. The latter melt is then deoxidized with cerium mischmetal. Hydrogen storage capacities of about 2% by weight and above that conventionally obtained can be made.

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