The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 2013
Filed:
Dec. 27, 2011
Bruce S. Kang, Morgantown, WV (US);
Minking K. Chyu, Pittsburgh, PA (US);
Mary Anne Alvin, Pittsburgh, PA (US);
Brian M. Gleeson, Sewickley, PA (US);
Bruce S. Kang, Morgantown, WV (US);
Minking K. Chyu, Pittsburgh, PA (US);
Mary Anne Alvin, Pittsburgh, PA (US);
Brian M. Gleeson, Sewickley, PA (US);
U.S. Department of Energy, Washington, DC (US);
Abstract
The disclosure provides a method for the production of composite particles utilizing a mechano chemical bonding process following by high energy ball milling on a powder mixture comprised of coating particles, first host particles, and second host particles. The composite particles formed have a grain size of less than one micron with grains generally characterized by a uniformly dispersed coating material and a mix of first material and second material intermetallics. The method disclosed is particularly useful for the fabrication of oxide dispersion strengthened coatings, for example using a powder mixture comprised of YO, Cr, Ni, and Al. This particular powder mixture may be subjected to the MCB process for a period generally less than one hour following by high energy ball milling for a period as short as 2 hours. After application by cold spraying, the composite particles may be heat treated to generate an oxide-dispersion strengthened coating.