Single crystal articles having controlled secondary crystallographic orientation
CA 1185537 A · Owner: United Technologies Corporation · Inventors: Gemma, Anthony E.; Dierberger, James A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
39-, Abstract, Alignment of the 001 crystal axis of a face centered cubic metal with the primary z axis of a single crystal axticle provides good thermal fatigue resistance along the z axis, and minimizes cracking transverse to the axis. However, significant cracking is still observed parallel the z axis in severe applications. This cracking can be reduced by controlling the secondary crystallographic orientation (i.e. orientation of crystal axes within x-y planes transverse to the z axis) to make the 110 crystal axis tangent to the article surface in the region most prone to thermal fatigue cracking. Algorithims derived from empirical relationships enable calculation of the orientation …
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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 April 16, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 16, 2002.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.