Metal alloy
AssigneeVsca AS
InventorsDavid Jarvis, Rosanna Jarvis
Life of this patent
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Abstract
The present invention relates to conductive multicomponent multiphase metal alloy. The metal alloy has the following (in atom-%):Ni, in a total amount of 35-70; wherein the remaining 30-65 comprises at least three elements selected from the list consisting of Sn, Nb, Ta, B, Cr, Ce, Fe, La, Nd, Sm, Gd, Ti, Zr, Mn, Hf, Si, P, Al, Y and V in a total amount of at least 30. The metal alloy comprises at least three distinct crystalline phases, at least one phase being an intermetallic phase. The present invention also relates to an electrode material comprising said alloy, to a method for forming a coating on said alloy, and to a method for manufacturing said alloy.
Claims21
A conductive electrode for aluminum processing comprising:
- a conductive multicomponent multiphase metal alloy;
- and
- a coating on at least one outer surface of the conductive multicomponent multiphase metal alloy,
- the conductive multicomponent multiphase metal alloy having the following composition (in atom-% of the metal alloy)
- Ni, in a total amount of 35-70;
- at least three elements selected from the list consisting of Sn, Nb, Ta, B, Cr, Ce, Fe, La, Nd, Sm, Gd, Ti, Zr, Mn, Hf, Si, P, Y and V in a total amount of at least 30-65;
- the balance being Ni and optionally naturally occurring impurities in an amount of less than 0.4, wherein the conductive multicomponent multiphase metal alloy does not include aluminum;
- wherein
- the metal alloy comprises at least three distinct crystalline phases, at least one phase being an intermetallic phase,
- wherein the coating is selected from the list of IMA approved minerals consisting of:
- Zircon
- (Zr, Hf)SiO4
- Hafnon
- (Hf, Zr)SiO4
- Stetindite
- (Ce, REE)SiO4
- Xenotime
- (Y, Ce, La, REE)PO4
- Wakefieldite
- (Ce, La, Y, Nd, Pb)VO4
- Schiavinatoite
- (Nb, Ta)BO4
- Béhierite
- (Ta, Nb)BO4
- Ixiolite
- (Ta, Nb, Sn, Fe, Mn, Zr, Hf, Ti)4O8
- Wodginite
- (Mn, Ti, Sn, Fe, Ce, La)(Ta, Nb)2O8
- Samarskite
- (Y, Fe, Mn, REE, Th, U, Ca)2(Nb, Ta, Ti)2O8
- Euxenite
- (Y, Ca, Ce, La, Th, U)(Nb, Ta, Ti)2O6
- Polycrase
- (Y, Ca, Ce, La, Th, U)(Ti, Nb, Ta)2O6
- Tapiolite
- (Fe, Mn)(Ta, Nb)2O6
- Fersmite
- (Ca, Ce, La, Na)(Nb, Ta, Sn, Ti)2O5F
- Aeschynite
- (Ce, Ca, Fe, Th, Nd, Y)(Ti, Nb)2O6
- Fluornatromicrolite
- (Na, Ca, Ce, La, REE, U, Pb)2(Ta, Nb, Sn, Ti)2O6F
- Zirconolite
- (Ca, Y, REE)Zr(Ti, Nb, Al, Fe)2O6F
- Kobeite
- (REE, Fe, U)3Zr(Ti, Nb)3O12
- Gagarinite
- Na(Ca, Ce, La, Y, REE)2F6
- Davidite
- (La, Ce, Ca)(Y, U)(Ti, Fe)20O38
- Fluocerite
- (Ce, La, Y, REE, Ca)F3
- Simpsonite
- Al4(Ta, Nb, Sn, Ti)3O13
- Albite
- (Na, Ca)AlSi3O8
- Wöhlerite
- NaCa2(Zr, Hf, Nb, Ta, Ti)Si2O7F2
- Nioboholtite
- (Nb, Ta)Al6BSi3O18
- Vigezzite
- (Ca, Ce, La)(Nb, Ta, Ti)2O6)
- Loparite-Ce
- Na(Ce, La, REE)(Ti, Nb, Ta)2O6
- Vlasovite
- (Na2ZrSi4O11)
- Normandite
- (NaCa(Mn, Fe)(Ti, Nb, Ta, Zr)(Si2O7)OF)
- Lakargiite
- Ca(Zr, Sn, Ti)O3
- Foordite
- Sn(Nb, Ta)2O6
- Ainalite
- Sn(Nb, Fe, Ta)O2.
- wherein the electrode is devoid of FezNiO4 in both a bulk of the conductive multicomponent multiphase metal alloy and in an outer surface of the conductive multicomponent multiphase metal alloy.
A method for manufacturing a conductive electrode comprising
- providing Ni in an amount of at least 35-70 atom-% of the metal alloy;
- providing a total of 30-65 atom-% of at least three elements selected from the list consisting of Sn, Nb, Ta, B, Cr, Ce, Fe, La, Nd, Sm, Gd, Ti, Zr, Mn, Hf, Si, P, Al and V;
- melting the provided elements to form a melt;
- agitating said melt;
- and
- solidifying said melt to form a metal alloy.
Dependencies are inferred from the claim text.