Abstract: Described are aluminum alloy products that generally have a microstructure and composition that resists corrosion. This corrosion resistance, in turn, allows the aluminum alloy products to exhibit favorable bond durability performance, such as when adhesively bonded to another product. The corrosion resistance can be achieved by controlling the composition of the aluminum alloy, including the presence and/or concentration of certain intermetallic particles, such as ?-phase intermetallic particles and ?-phase intermetallic particles.

Abstract: Disclosed is a metal foil capacitor, preferably an aluminum capacitor, comprising a modified metal foil comprising a base metal, preferably an aluminum foil. The modified metal foil capacitor may satisfy at least two of the following conditions: (a) the modified metal foil has a surface area of at least 10 times greater than an unmodified metal foil; (b) the modified metal foil has a dielectric constant (k) of at least 5; (c) the modified metal foil has a thickness of at least 1 micron; and/or (d) the modified metal foil comprises at least one metal in addition to the base metal, wherein the at least one metal is present in an amount of at least 0.01 wt. % based on the total weight of the modified metal foil. Methods for preparing the metal foil capacitor are also disclosed.

Abstract: Disclosed herein are systems and methods for engineering a metal substrate surface via a dry chemical deposition technique. Also described herein are the resulting surface engineered metal substrates. More particularly, disclosed are surface engineered metal substrates having thin films deposited via flame pyrolysis of a mixture of a gas mixture comprising an oxidizer and a combustible gas, a chemical precursor comprising a silicon-containing compound and/or a phosphorus-containing compound, and a chemical additive.

Abstract: This application discloses a material including an aluminum metal alloy cladding fusion-cast to a metal alloy core. Also disclosed is a material having a metal core with a high content of scrap metal and having two sides, a first aluminum metal cladding fusion cast to the first side of the core layer, and a second aluminum metal cladding fusion cast to the second side of the core layer. The materials can be in a form of a sheet. Sheets are roll bonded together to create permanent metallurgical bonds except at regions where a weld-stop ink is applied. The sheets are used to make corrosion resistant heat exchangers.

Abstract: This application discloses a material including an aluminum metal alloy cladding fusion-cast to a metal alloy core. Also disclosed is a material having a metal core with a high content of scrap metal and having two sides, a first aluminum metal cladding fusion cast to the first side of the core layer, and a second aluminum metal cladding fusion cast to the second side of the core layer. The materials can be in a form of a sheet. Sheets are roll bonded together to create permanent metallurgical bonds except at regions where a weld-stop ink is applied. The sheets are used to make corrosion resistant heat exchangers.

Abstract: This application discloses a material comprising an aluminum metal alloy cladding fusion-cast to a metal alloy core. Also disclosed is a material comprising a metal core comprising a high content of scrap metal and having two sides, a first aluminum metal cladding fusion cast to the first side of the core layer, and a second aluminum metal cladding fusion cast to the second side of the core layer. The materials can be in a form of a sheet. Sheets are roll bonded together to create permanent metallurgical bonds except at regions where a weld-stop ink is applied. The sheets are used to make corrosion resistant heat exchangers.

Abstract: The invention relates to a solar energy absorber unit for a solar energy device, and methods of producing the same. The unit includes a collector plate having a front surface adapted to absorb solar energy and a rear surface. A rear panel has an inner surface attached to areas of the rear surface of the collector plate via a fluid-tight bond but leaving a fluid-conveying channel between the areas of the rear surface of the plate where the panel is attached. The collector plate and preferably the rear panel are each made of a core layer of an aluminum alloy provided with a cladding layer formed on a side of the core layer that confronts the fluid-conveying channel, the cladding layer being made of aluminum or an aluminum alloy having a total content of alloying elements and impurities, if any, of no more than 0.5 wt. %.

Abstract: The invention relates to a solar energy absorber unit for a solar energy device, and methods of producing the same. The unit includes a collector plate having a front surface adapted to absorb solar energy and a rear surface. A rear panel has an inner surface attached to areas of the rear surface of the collector plate via a fluid-tight bond but leaving a fluid-conveying channel between the areas of the rear surface of the plate where the panel is attached. The collector plate and preferably the rear panel are each made of a core layer of an aluminum alloy provided with a cladding layer formed on a side of the core layer that confronts the fluid-conveying channel, the cladding layer being made of aluminum or an aluminum alloy having a total content of alloying elements and impurities, if any, of no more than 0.5 wt. %.

Abstract: A cold rolling process for impressing a pattern on a surface of a sheet metal article involves passing the sheet article through a pair of rolls and engaging a patterning feature with isolated areas of a surface of the sheet article, at a localized pressure to plastically deform at least the surface of the sheet article. A rolling pressure is maintained on other areas of the sheet article that is less than the bulk elastic yield strength of the metal. A cold rolling apparatus is also described having a pair of rolls, each with partially cylindrical outer surfaces. The rolls have a gap between the cylindrical parts. One of the rolls has a localized surface region that is displaced relative to the surface of the roll. When the localized region is brought near the other roll, a spacing exists that is narrower than the gap. One of the rolls has a localized patterning feature that aligns with the localized surface region to impress a pattern into the sheet article.

Abstract: A cold rolling process for impressing a pattern on a surface of a sheet metal article involves passing the sheet article through a pair of rolls and engaging a patterning feature with isolated areas of a surface of the sheet article, at a localized pressure to plastically deform at least the surface of the sheet article. A rolling pressure is maintained on other areas of the sheet article that is less than the bulk elastic yield strength of the metal. A cold rolling apparatus is also described having a pair of rolls, each with partially cylindrical outer surfaces. The rolls have a gap between the cylindrical parts. One of the rolls has a localized surface region that is displaced relative to the surface of the roll. When the localized region is brought near the other roll, a spacing exists that is narrower than the gap. One of the rolls has a localized patterning feature that aligns with the localized surface region to impress a pattern into the sheet article.