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Title: Methods of removing a ceramic coating from a substrate

Abstract

A method for removing a ceramic coating from a substrate is presented. The method includes contacting the ceramic coating with a composition including a fluoride source and nitric acid. A method of forming a component having a variation in saturation magnetization is presented. The method includes masking selected portions of a surface of a metallic component using a ceramic coating to form a masked metallic component; selectively diffusing nitrogen into the metallic component by exposing the masked metallic component to a nitrogen-rich atmosphere; and removing the ceramic coating from the surface of the metallic component by contacting the ceramic coating with a composition including the fluoride source and nitric acid.

Inventors:
Issue Date:
Research Org.:
General Electric Company, Schenectady, NY (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1600379
Patent Number(s):
10,501,839
Application Number:
15/950,510
Assignee:
General Electric Company (Schenectady, NY)
DOE Contract Number:  
EE0007755
Resource Type:
Patent
Resource Relation:
Patent File Date: 04/11/2018
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Kool, Lawrence Bernard. Methods of removing a ceramic coating from a substrate. United States: N. p., 2019. Web.
Kool, Lawrence Bernard. Methods of removing a ceramic coating from a substrate. United States.
Kool, Lawrence Bernard. Tue . "Methods of removing a ceramic coating from a substrate". United States. https://www.osti.gov/servlets/purl/1600379.
@article{osti_1600379,
title = {Methods of removing a ceramic coating from a substrate},
author = {Kool, Lawrence Bernard},
abstractNote = {A method for removing a ceramic coating from a substrate is presented. The method includes contacting the ceramic coating with a composition including a fluoride source and nitric acid. A method of forming a component having a variation in saturation magnetization is presented. The method includes masking selected portions of a surface of a metallic component using a ceramic coating to form a masked metallic component; selectively diffusing nitrogen into the metallic component by exposing the masked metallic component to a nitrogen-rich atmosphere; and removing the ceramic coating from the surface of the metallic component by contacting the ceramic coating with a composition including the fluoride source and nitric acid.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {12}
}

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Works referenced in this record:

Method for masking selected regions of a substrate
patent, May 2010


Process for removing aluminosilicate material from a substrate, and related compositions
patent, July 2005


Method for removing the coating from a gas turbine component
patent, December 2015


Stop-off composition
patent, December 1988


Apparatus and process to clean and strip coatings from hardware
patent, March 2002


Method for delamination of ceramic hard material layers from steel and cemented carbide substrates
patent, January 2018


Multiplex aluminide-silicide coating
patent, August 1996


Method of patterning aluminum containing group IIIb Element
patent, December 1996