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US4710246A Expired / Lapsed US ⏱️ 0.0 years remaining

Amorphous aluminum-based alloys

Assignee: CENTRE de la RECHERCHE SCIENTIFIQUE "CNRS" 15 QUAI ANATOLE FRANCE 75700 PARIS-FRANCE
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Filing: 1984-09-27
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Granted: 1987-12-01
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Expires: 2004-09-27
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Abstract

Abstract A substantially amorphous or microcrystalline Al-based alloy, wherein said Al-based alloy is represented by the formula: AlaMbM'cXdYe in which: a+b+c+d+e=100 50</=a</=95 atom % 0</=b</=40 atom % 0</=c</=15 atom % 0</=d</=20 atom % 0</=e</=3 atom % wherein at least two of the subscripts b, c or d are strictly positive, and wherein M is at least one metal selected from the group consisting of Mn, Ni, Cu, Zr, Cr, Ti, V, Fe and Co; M' is Mo, W, or a mixture thereof, X is at least one element selected from the group consisting of Ca, Li, Mg, Ge, Si, and Zn; and Y is the inevitable production impurities, with the proviso that when element M is Co, Mn and/or Ni, the total amount of these elements is at least 12 wt % of the alloy.

Inventors

  • 👤 Gerard Le Caer
  • 👤 Jean-Marie Dubois

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 17:34
CPC Classifications
C; C22; C22C; C22C45/00; C22C45/08

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 136 words
A substantially amorphous Al-based alloy, wherein said Al-based alloy is represented by the formula: Al.sub.a M.sub.b M'.sub.c X.sub.d Y.sub.e in which: a+b+c+d+e=100 50≦a≦95 atom % 0≦b≦40 atom % 0≦c≦15 atom % 0≦d≦20 atom % 0≦e≦3 atom % wherein at least two of the subscripts b, c or d are strictly positive, and wherein M is at least one metal selected from the group consisting of Mn, Ni, Cu, Zr, Cr, Ti, V, Fe and Co; M' is Mo, W, or a mixture thereof X is at least one element selected from the group consisting of Ca, Li, Mg, Ge, Si, and Zn; and Y is the inevitable production impurities, with the proviso that when element M is Co, Mn and/or Ni, the total amount of these elements is at least 12 wt % of the alloy.
Claim 2
Dependent Claim 136 words
A substantially amorphous Al-based alloy, wherein said Al-based alloy is represented by the formula: Al.sub.a M.sub.b M'.sub.c X.sub.d Y.sub.e in which: a+b+c+d+e=100 50≦a≦95 atom % 0≦b≦40 atom % 0≦c≦15 atom % 0≦d≦20 atom % 0≦e≦3 atom % wherein at least two of the subscripts b, c or d are strictly positive, and wherein M is at least one metal selected from the group consisting of Mn, Ni, Cu, Zr, Cr, Ti, V, Fe and Co; M' is Mo, W, or a mixture thereof X is at least one element selected from the group consisting of Ca, Li, Mg, Ge, Si, and Zn; and Y is the inevitable production impurities, with the proviso that when element M is Co, Mn and/or Ni, the total amount of these elements is at least 12 wt % of the alloy.
Claim 3
Dependent Claim 137 words
A substantially amorphous Al-based alloy, wherein the said Al-based alloy is represented by the formula: Al.sub.a M.sub.b M'.sub.c X.sub.d Y.sub.e in which: a+b+c+d+e=100; 50≦a≦85 atom %; 0≦b≦40 atom %; 0≦c≦15 atom %; 0≦d≦20 atom %; 0≦e≦3 atom % wherein at least two of the subscripts b, c or d are strictly positive, and wherein M is at least one metal selected from the group consisting of Mn, Ni, Cu, Zr, Cr, Ti, V, Fe and Co; M' is Mo, W, or a mixture thereof; X is at least one element selected from the group consisting of Ca, Li, Mg, Ge, Si, and Zn; and Y is the inevitable production impurities, with the proviso that when element M is Co, Mn or Ni, the total amount of these elements is at least 12 weight % of the alloy.
Claim 4
Dependent Claim 137 words
A substantially amorphous Al-based alloy, wherein the said Al-based alloy is represented by the formula: Al.sub.a M.sub.b M'.sub.c X.sub.d Y.sub.e in which: a+b+c+d+e=100; 50≦a≦85 atom %; 0≦b≦40 atom %; 0≦c≦15 atom %; 0≦d≦20 atom %; 0≦e≦3 atom % wherein at least two of the subscripts b, c or d are strictly positive, and wherein M is at least one metal selected from the group consisting of Mn, Ni, Cu, Zr, Cr, Ti, V, Fe and Co; M' is Mo, W, or a mixture thereof; X is at least one element selected from the group consisting of Ca, Li, Mg, Ge, Si, and Zn; and Y is the inevitable production impurities, with the proviso that when element M is Co, Mn or Ni, the total amount of these elements is at least 12 weight % of the alloy.

References Cited (Backward Citations)

US4347076A Cited
US4595429A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1990-11-30 1991-06-01 1991-12-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1994-11-30 1995-06-01 1995-12-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1998-11-30 1999-06-01 1999-12-01 $7700.00 Window Closed / Lapsed

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