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US 12,278,017 B2Granted
Silicon carbide reinforced zirconium based cladding
AssigneeWestinghouse Electric Corp.
InventorEdward J. Lahoda
Life of this patent
Estimating the term…
Abstract
The present application relates to nuclear fuel claddings, and more particularly to zirconium alloy tubes with a ceramic covering. A first coating layer is applied to the ceramic covering. A second coating layer is over the first coating layer. The first coating layer includes Nb. The second coating layer includes Cr.
Claims5
A nuclear fuel cladding tube comprising:
- a zirconium alloy tube having a wall thickness between 100 and 1000 microns;
- a structural support member comprised of a ceramic covering applied directly onto the zirconium alloy tube;
- a first coating layer applied to the ceramic covering, wherein the first coating layer is made of a first material selected from the group consisting of Nb, Nb alloy, Nb oxide, and combinations thereof;
- and
- at least one second coating layer over the first coating layer, wherein the second coating layer is made of a second material selected from the group consisting of Cr, Cr alloys, Cr oxide, and combinations thereof.
2 more elements
A nuclear fuel cladding tube comprising:
- a zirconium alloy tube;
- a structural support member comprised of a ceramic covering applied directly onto the zirconium alloy tube;
- a first coating layer applied to the ceramic covering, wherein the first coating layer is made of a first material selected from the group consisting of Nb, Nb alloy, Nb oxide, and combinations thereof;
- and
- at least one second coating layer over the first coating layer, wherein the second coating layer is made of a second material selected from the group consisting of Cr, Cr alloys, Cr oxide, and combinations thereof.
2 more elements
A nuclear fuel cladding tube comprising:
- a zirconium alloy tube having a wall thickness between 100 and 1000 microns;
- a structural support member comprised of a SiC braided yarn covering applied directly onto the zirconium alloy tube;
- a first coating layer applied to the SiC braided yarn covering, wherein the first coating layer is made of a first material selected from the group consisting of Nb, Nb alloy, Nb oxide, and combinations thereof;
- and
- at least one second coating layer over the first coating layer, wherein the second coating layer is made of a second material selected from the group consisting of Cr, Cr alloys, Cr oxide, and combinations thereof.
2 more elements
Dependencies are inferred from the claim text.