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US 6,743,380 B2Granted
High temperature electrically conductive material
AssigneeCaterpillar Inc.
InventorsKurtis Chad Kelley, Jill Elizabeth Rockwood
Life of this patent
Estimating the term…
Abstract
An electrically conductive material that includes a phosphate glass having a chemical formula AB(PO4). Ag particles are dispersed within the phosphate glass in an amount of between about 8% to about 70% by volume. The invention includes a method for making the disclosed electrically conductive material.
Claims18
An electrically conductive material, comprising:
- a phosphate glass having a chemical formula AB(PO4), where A is a first metallic material and B is a second metallic material;
- and
- Ag particles dispersed within the phosphate glass in an amount of between about 8% to about 70% by volume,
- wherein the first metallic material is selected from one of Al, Fe, and oxides thereof.
1 more element
An electrically conductive material, comprising:
- a phosphate glass having a chemical formula AB(PO4), where A is selected from one of Al, Fe, and oxides thereof, and B is selected from one of Cr, Mo, and oxides thereof;
- and
- Ag particles of a size less than about 5 μm that are dispersed within the phosphate glass in an amount of between about 8% to about 70% by volume, wherein said electrically conductive material has a curing temperature of between about 180° C. and 230° C. and an operating temperature of up to about 900° C.
A method of making an electrically conductive material, comprising:
- beginning with a phosphate binder;
- adding Ag particles to the binder to obtain a mixture including Ag in an amount of between about 8% to about 70% by volume;
- drying the mixture for a predetermined length of time;
- and
- curing the mixture,
- wherein said phosphate binder has a chemical formula of AB(PO4), and A is selected from one of Al, Fe, and oxides thereof.
3 more elements
Dependencies are inferred from the claim text.