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 Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1330697
- Patent Number(s):
- 9481923
- Application Number:
- 12/469,888
- Assignee:
- Battelle Memorial Institute (Richland, WA)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C23 - COATING METALLIC MATERIAL C23C - COATING METALLIC MATERIAL
- 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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