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Title: Methods for both coating a substrate with aluminum oxide and infusing the substrate with elemental aluminum

Abstract

Methods of aluminizing the surface of a metal substrate. The methods of the present invention do not require establishment of a vacuum or a reducing atmosphere, as is typically necessary. Accordingly, aluminization can occur in the presence of oxygen, which greatly simplifies and reduces processing costs by allowing deposition of the aluminum coating to be performed, for example, in air. Embodiments of the present invention can be characterized by applying a slurry that includes a binder and powder granules containing aluminum to the metal substrate surface. Then, in a combined step, a portion of the aluminum is diffused into the substrate and a portion of the aluminum is oxidized by heating the slurry to a temperature greater than the melting point of the aluminum in an oxygen-containing atmosphere.

Inventors:
;
Issue Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1330697
Patent Number(s):
9,481,923
Application Number:
12/469,888
Assignee:
Battelle Memorial Institute (Richland, WA)
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Patent
Resource Relation:
Patent File Date: 2009 May 21
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Choi, Jung-Pyung, and Weil, Kenneth Scott. Methods for both coating a substrate with aluminum oxide and infusing the substrate with elemental aluminum. United States: N. p., 2016. Web.
Choi, Jung-Pyung, & Weil, Kenneth Scott. Methods for both coating a substrate with aluminum oxide and infusing the substrate with elemental aluminum. United States.
Choi, Jung-Pyung, and Weil, Kenneth Scott. Tue . "Methods for both coating a substrate with aluminum oxide and infusing the substrate with elemental aluminum". United States. https://www.osti.gov/servlets/purl/1330697.
@article{osti_1330697,
title = {Methods for both coating a substrate with aluminum oxide and infusing the substrate with elemental aluminum},
author = {Choi, Jung-Pyung and Weil, Kenneth Scott},
abstractNote = {Methods of aluminizing the surface of a metal substrate. The methods of the present invention do not require establishment of a vacuum or a reducing atmosphere, as is typically necessary. Accordingly, aluminization can occur in the presence of oxygen, which greatly simplifies and reduces processing costs by allowing deposition of the aluminum coating to be performed, for example, in air. Embodiments of the present invention can be characterized by applying a slurry that includes a binder and powder granules containing aluminum to the metal substrate surface. Then, in a combined step, a portion of the aluminum is diffused into the substrate and a portion of the aluminum is oxidized by heating the slurry to a temperature greater than the melting point of the aluminum in an oxygen-containing atmosphere.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {11}
}

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Works referenced in this record:

Structure of Al-modified silicide coatings on an Nb-based ultrahigh temperature alloy prepared by pack cementation techniques
journal, January 2009


Intermetallic FeAl based coatings deposited by the electrospark technique: corrosion behavior in molten (Li+K) carbonate
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Codepositing elements by halide-activated pack cementation
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