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.

Date of Patent:
May. 27, 2025

Filed:

Dec. 21, 2020
Applicant:

Rolls-royce Corporation, Indianapolis, IN (US);

Inventors:

Robert Alexander Sean Golden, Noblesville, IN (US);

Matthew T. Kush, Martinsville, IN (US);

Assignee:

Rolls-Royce Corporation, Indianapolis, IN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 41/50 (2006.01); C04B 41/00 (2006.01); C04B 41/45 (2006.01); C04B 41/86 (2006.01);
U.S. Cl.
CPC ...
C04B 41/5022 (2013.01); C04B 41/009 (2013.01); C04B 41/4533 (2013.01); C04B 41/86 (2013.01);
Abstract

In some examples, a method including depositing a plurality of particles on a ceramic or ceramic matrix composite (CMC) substrate to form a barrier coating on the ceramic or CMC substrate, the plurality of particles including a silica-rich rare earth (RE) disilicate material and a second material, wherein the silica-rich RE disilicate material includes excess silica compared to a stoichiometric RE disilicate material, wherein the barrier coating includes a first domain including the silica-rich RE disilicate material and a second phase, the second phase being disposed at grain boundaries, splat boundaries, or both of the barrier coating.


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