US4702813A — Multi-layered amorphous metal-based oxygen anodes

Claim 1

Independent Claim 88 words

Multi-layered amorphous metal-based anodes comprising: a substrate material; a first coating of an amorphous metal alloy applied thereto; and a second coating of a different amorphous metal alloy applied to said first coating wherein said first amorphous metal alloy is selected from the group consisting of alloys having the formula T.sub.100-x M.sub.x where T is Ti, Nb, Ta, Zr and mixtures thereof; M is N, P, As, Si, B, Ge, Al, Sb and mixtures thereof and x is greater than 0 and less than or equal to 25.

Claim 2

Dependent Claim 88 words

Multi-layered amorphous metal-based anodes comprising: a substrate material; a first coating of an amorphous metal alloy applied thereto; and a second coating of a different amorphous metal alloy applied to said first coating wherein said first amorphous metal alloy is selected from the group consisting of alloys having the formula T.sub.100-x M.sub.x where T is Ti, Nb, Ta, Zr and mixtures thereof; M is N, P, As, Si, B, Ge, Al, Sb and mixtures thereof and x is greater than 0 and less than or equal to 25.

Claim 3

Dependent Claim 55 words

Multi-layered amorphous metal-based anodes, as set forth in claim 1, wherein said second amorphous metal alloy is selected from the group consisting of alloys having the formula Pt.sub.100-y Q.sub.y where Q is P, As, Si, B, Ge, Al, Sb and mixtures thereof and y is greater than 0 and less than or equal to 25.

Claim 4

Dependent Claim 30 words

Multi-layered amorphous metal-based anodes, as set forth in claim 2, wherein said first amorphous metal alloy comprises Ti and P and said second amorphous metal alloy comprises Pt and P.

Claim 5

Dependent Claim 38 words

Multi-layered amorphous metal-based anodes, as set forth in claim 3, wherein said first amorphous metal alloy is Ti 80 P 20 ; said second amorphous metal alloy is Pt 90 P 10 and said substrate material is titanium.

Claim 6

Dependent Claim 38 words

Multi-layered amorphous metal-based anodes, as set forth in claim 1, wherein the thickness of said first coating ranges between about one to 20 microns and the thickness of said second coating ranges between about one to 20 microns.

Claim 7

Dependent Claim 24 words

Multi-layered amorphous metal-based anodes, as set forth in claim 1, wherein said first and second amorphous metal alloys are at least 50 percent amorphous.

Claim 8

Dependent Claim 24 words

Multi-layered amorphous metal-based anodes, as set forth in claim 1, wherein said first and second amorphous metal alloys are at least 80 percent amorphous.

Claim 9

Dependent Claim 23 words

Multi-layered amorphous metal-based anodes, as set forth in claim 1, wherein said first and second amorphous metal alloys are about 100 percent amorphous.

Claim 10

Dependent Claim 72 words

Multi-layered amorphous metal-based anodes, as set forth in claim 1, having a corrosion rate of less than about 15 mg/KAmp. Hr. as measured in an electrolyte consisting essentially of 10 percent by weight copper sulfate, 10 percent by weight sulfuric acid and 0.5 percent by weight nitric acid and in an electrolytic process conducted at a voltage of about five to 10 volts and a current density of 1 Amp/cm 2 .

Claim 11

Independent Claim 97 words

A method for the preparation of multi-layered amorphous metal-based anodes comprising the steps of: applying a first coating of an amorphous metal alloy to a substrate material; and applying a second coating of a different amorphous metal alloy to said first coating wherein said first amorphous metal alloy is selected from the group consisting of alloys having the formula T.sub.100-x M.sub.x where T is Ti, Nb, Ta, Zr and mixtures thereof: M is N, P, As, Si, B, Ge, Al, Sb and mixtures thereof and x is greater than 0 and less than or equal to 25.

Claim 12

Independent Claim 97 words

A method for the preparation of multi-layered amorphous metal-based anodes comprising the steps of: applying a first coating of an amorphous metal alloy to a substrate material; and applying a second coating of a different amorphous metal alloy to said first coating wherein said first amorphous metal alloy is selected from the group consisting of alloys having the formula T.sub.100-x M.sub.x where T is Ti, Nb, Ta, Zr and mixtures thereof: M is N, P, As, Si, B, Ge, Al, Sb and mixtures thereof and x is greater than 0 and less than or equal to 25.

Claim 13

Dependent Claim 53 words

A method, as set forth in claim 10, wherein said second amorphous metal alloy is selected from the group consisting of alloys having the formula Pt.sub.100-y Q.sub.y where Q is P, As, Si, B, Ge, Al, Sb and mixtures thereof and y is greater than 0 and less than or equal to 25.

Claim 14

Dependent Claim 28 words

A method, as set forth in claim 11, wherein said first amorphous metal alloy comprises Ti and P and said second amorphous metal alloy comprises Pt and P.

Claim 15

Dependent Claim 36 words

A method, as set forth in claim 12, wherein said first amorphous metal alloy is Ti 80 P 20 ; said second amorphous metal alloy is Pt 90 P 10 and said substrate material is titanium.

Claim 16

Dependent Claim 36 words

A method, as set forth in claim 10, wherein the thickness of said first coating ranges between about one to 20 microns and the thickness of said second coating ranges between about one to 20 microns.

Claim 17

Dependent Claim 22 words

A method, as set forth in claim 10, wherein said first and second amorphous metal alloys are at least 50 percent amorphous.

Claim 18

Dependent Claim 22 words

A method, as set forth in claim 10, wherein said first and second amorphous metal alloys are at least 80 percent amorphous.

Claim 19

Dependent Claim 21 words

A method, as set forth in claim 10, wherein said first and second amorphous metal alloys are about 100 percent amorphous.

Claim 20

Dependent Claim 18 words

A method, as set forth in claim 10, wherein said steps of applying are conducted by ion plating.

Claim 21

Dependent Claim 17 words

A method, as set forth in claim 10, wherein said steps of applying are conducted by sputtering.

Claim 22

Dependent Claim 73 words

A method, as set forth in claim 10, said anode having a corrosion rate of less than about 15 mg/KAmp. Hr. as measured in an electrolyte consisting essentially of 10 percent by weight copper sulfate, 10 percent by weight sulfuric acid and 0.5 percent by weight nitric acid and in an electrolytic process conducted at a voltage of from about five to 10 volts and a current density of 1 Amp/cm 2 .

Claim 23

Dependent Claim 107 words

An electrolytic process employing oxygen anodes comprising the step of: conducting said electrolytic process in an electrolytic cell having a multi-layered amorphous metal-based anode comprising a substrate material, a first coating of an amorphous metal alloy applied thereto; and a second coating of a different amorphous metal alloy applied to said first coating wherein said first amorphous metal is selected from the group consisting of alloys having the formula T.sub.100-x M.sub.x where T is Ti, Nb, Ta, Zr and mixtures thereof; M is N, P, As, Si, B, Ge, Al, Sb and mixtures thereof and x is greater than 0 and less than or equal to 25.

Claim 24

Dependent Claim 107 words

An electrolytic process employing oxygen anodes comprising the step of: conducting said electrolytic process in an electrolytic cell having a multi-layered amorphous metal-based anode comprising a substrate material, a first coating of an amorphous metal alloy applied thereto; and a second coating of a different amorphous metal alloy applied to said first coating wherein said first amorphous metal is selected from the group consisting of alloys having the formula T.sub.100-x M.sub.x where T is Ti, Nb, Ta, Zr and mixtures thereof; M is N, P, As, Si, B, Ge, Al, Sb and mixtures thereof and x is greater than 0 and less than or equal to 25.

Claim 25

Dependent Claim 53 words

An electrolytic process, as set forth in claim 21, wherein said second amorphous metal is selected from the group consisting of alloys having the formula Pt.sub.100-y Q.sub.y where Q is P, As, Si, B, Ge, Al, Sb and mixtures thereof and y is greater than 0 and less than or equal to 25.

Claim 26

Dependent Claim 29 words

An electrolytic process, as set forth in claim 22, wherein said first amorphous metal alloy comprises Ti and P and said second amorphous metal alloy comprises Pt and P.

Claim 27

Dependent Claim 37 words

An electrolytic process, as set forth in claim 23, wherein said first amorphous metal alloy is Ti 80 P 20 , said second amorphous metal alloy is Pt 90 P 10 and said substrate material is titanium.

Claim 28

Dependent Claim 37 words

An electrolytic process, as set forth in claim 21, wherein the thickness of said first coating ranges between about one to 20 microns and the thickness of said second coating ranges between about one to 20 microns.

Claim 29

Dependent Claim 23 words

An electrolytic process, as set forth in claim 21, wherein said first and second amorphous metal alloys are at least 50 percent amorphous.

Claim 30

Dependent Claim 23 words

An electrolytic process, as set forth in claim 21, wherein said first and second amorphous metal alloys are at least 80 percent amorphous.

Claim 31

Dependent Claim 22 words

An electrolytic process, as set forth in claim 21, wherein said first and second amorphous metal alloys are about 100 percent amorphous.

Claim 32

Dependent Claim 74 words

An electrolytic process, as set forth in claim 21, said anode having a corrosion rate of less than about 15 mg/KAmp. Hr. as measured in an electrolyte consisting essentially of 10 percent by weight copper sulfate, 10 percent by weight sulfuric acid and 0.5 percent by weight nitric acid and in an electrolytic process conducted at a voltage of from about five to 10 volts and a current density of 1 Amp/cm 2 .

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1990-10-26	1991-04-27	1991-10-27	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1994-10-26	1995-04-27	1995-10-27	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1998-10-26	1999-04-27	1999-10-27	$7700.00	Window Closed / Lapsed

Multi-layered amorphous metal-based oxygen anodes

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