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Title: Method of applying a cerium diffusion coating to a metallic alloy

Abstract

A method of applying a cerium diffusion coating to a preferred nickel base alloy substrate has been discovered. A cerium oxide paste containing a halide activator is applied to the polished substrate and then dried. The workpiece is heated in a non-oxidizing atmosphere to diffuse cerium into the substrate. After cooling, any remaining cerium oxide is removed. The resulting cerium diffusion coating on the nickel base substrate demonstrates improved resistance to oxidation. Cerium coated alloys are particularly useful as components in a solid oxide fuel cell (SOFC).

Inventors:
 [1];  [2]
  1. Salem, OR
  2. Benton, OR
Issue Date:
Research Org.:
Albany Research Center (ARC), Albany, OR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
963875
Patent Number(s):
7553517
Application Number:
11/226,283
Assignee:
The United States of America as represented by the United States Department of Energy (Washington, DC)
Patent Classifications (CPCs):
C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Jablonski, Paul D, and Alman, David E. Method of applying a cerium diffusion coating to a metallic alloy. United States: N. p., 2009. Web.
Jablonski, Paul D, & Alman, David E. Method of applying a cerium diffusion coating to a metallic alloy. United States.
Jablonski, Paul D, and Alman, David E. Tue . "Method of applying a cerium diffusion coating to a metallic alloy". United States. https://www.osti.gov/servlets/purl/963875.
@article{osti_963875,
title = {Method of applying a cerium diffusion coating to a metallic alloy},
author = {Jablonski, Paul D and Alman, David E},
abstractNote = {A method of applying a cerium diffusion coating to a preferred nickel base alloy substrate has been discovered. A cerium oxide paste containing a halide activator is applied to the polished substrate and then dried. The workpiece is heated in a non-oxidizing atmosphere to diffuse cerium into the substrate. After cooling, any remaining cerium oxide is removed. The resulting cerium diffusion coating on the nickel base substrate demonstrates improved resistance to oxidation. Cerium coated alloys are particularly useful as components in a solid oxide fuel cell (SOFC).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {6}
}

Patent:

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