Accession Number:

ADD014685

Title:

Diffusion Bonding Process for Aluminum and Aluminum Alloys.

Descriptive Note:

Patent Application, Filed 3 Jul 90,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

• Ferrando, William A.
• Divechi, Amarnath P.
• Karmarkar, Subhash D.

Report Date:

1990-07-03

Pagination or Media Count:

12.0

Abstract:

A method of forming diffusion bonds between aluminum and aluminum alloy surfaces by coating the surfaces with molten AgNO3 and then decomposing the AgNO3 to form a thin uniform layer of silver on the surfaces before form the diffusion bond. The AgNO3 coating and decomposition treatment permanently breaks up the Al2O3 coatings on the aluminum or aluminum alloy surfaces, making diffusion bonding possible. Patent applications. js

Descriptors:

• *ALUMINUM ALLOYS
• ALUMINUM
• COATINGS
• DECOMPOSITION
• DIFFUSION BONDING
• LAYERS
• PATENT APPLICATIONS
• SILVER
• SURFACES
• THINNESS

Subject Categories:

• Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE