AUSSCHEIDUNGSGEHÄRTETE SELTENE ERDEN-NICKELLEGIERUNG, IHRE HERSTELLUNG UND NEGATIVE ELEKTRODE FÜR NICKEL-WASSERSTOFF-SEKUNDÄRZELLE

An AB5 type age-precipitating rare earth metal-nickel alloy having a composition expressed by (1): R(Ni1-xMx)5+y where R represents one or more of rare-earth elements including Y, M represents one or more selected from a group of Co, Al, Mn, Fe, Cu, Zr, Ti, Mo, W, and B and x and y respectively sati...

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Bibliographic Details
Main Authors TANIBUCHI, YUJI, YAMAMOTO, KAZUHIKO, OKADA, CHIKARA
Format Patent
LanguageGerman
Published 07.02.2002
Edition7
Subjects
ALLOYS
BASIC ELECTRIC ELEMENTS
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS ANDNON-FERROUS ALLOYS
CHEMISTRY
COMPOUNDS THEREOF
ELECTRICITY
FERROUS OR NON-FERROUS ALLOYS
INORGANIC CHEMISTRY
METALLURGY
NON-METALLIC ELEMENTS
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:An AB5 type age-precipitating rare earth metal-nickel alloy having a composition expressed by (1): R(Ni1-xMx)5+y where R represents one or more of rare-earth elements including Y, M represents one or more selected from a group of Co, Al, Mn, Fe, Cu, Zr, Ti, Mo, W, and B and x and y respectively satisfy the relations 0.05 </= x </= 0.5 and -0.45 </= y </= 0.45. The alloy has a precipitated phase of 0.1-20 mu m in average major axis. A raw alloy material having the composition expressed by formula (1) is subjected to a solid solution treatment at above 1000 DEG C, and aged for a period of time t which satisfies the relation (2): (830-T)/200 </= log t </= (1,200-T)/200 at a temperature T ( DEG C) of >/= 700 DEG C and < 1,000 DEG C so as to produce the precipitated phase having an average major axis of 0.1-20 mu m.
Bibliography:Application Number: DE19956023148T