Process for forming unusually strong joints between metals and ceramics by brazing at temperatures that do not exceed 750.sup.oc
CA 1259780 A · Owner: United States Of America (Government Of The) United States Department Of Energy · Inventors: Hammond, Joseph P.; David, Stan A.; Woodhouse, John J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
PROCESS FOR FORMING UNUSUALLY STRONG JOINTS BETWEEN METALS AND CERAMICS BY BRAZING AT TEMPERATURES THAT DO NOT EXCEED 750°C Abstract of the Disclosure, This invention is a process for joining metals to ceramics to form very strong bonds using low brazing temperature i.e. less than, 750°C, and particularly for joining nodular cast iron to partially stabilized zirconia. The process provides that the ceramic be coated with an active metal, such as titanium that can form an intermetallic, with a low melting point brazing alloy such as 60Ag-30Cu-10Sn. The nodular cast iron is coated with a noncarbon containing metal such as, copper, to prevent carbon in the nodular cast iron from dissolving in …
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.