Methods for both coating a substrate with aluminum oxide and infusing the substrate with elemental aluminum
Patent
·
OSTI ID:1330697
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.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- Assignee:
- Battelle Memorial Institute (Richland, WA)
- Patent Number(s):
- 9,481,923
- Application Number:
- 12/469,888
- OSTI ID:
- 1330697
- Country of Publication:
- United States
- Language:
- English
Codepositing elements by halide-activated pack cementation
|
journal | November 1991 |
Intermetallic FeAl based coatings deposited by the electrospark technique: corrosion behavior in molten (Li+K) carbonate
|
journal | June 2004 |
Microstructure and corrosion resistance of Fe-Al intermetallic coating on 45 steel synthesized by double glow plasma surface alloying technology
|
journal | February 2009 |
Structure of Al-modified silicide coatings on an Nb-based ultrahigh temperature alloy prepared by pack cementation techniques
|
journal | January 2009 |
Similar Records
Protective aluminum oxide surface coatings and low-temperature forming process for high-temperature applications
Method of coating aluminum substrates with solid adsorbent
Metallic coatings on silicon substrates, and methods of forming metallic coatings on silicon substrates
Patent
·
2020
·
OSTI ID:1632629
Method of coating aluminum substrates with solid adsorbent
Patent
·
1992
·
OSTI ID:7201713
Metallic coatings on silicon substrates, and methods of forming metallic coatings on silicon substrates
Patent
·
2008
·
OSTI ID:970494