This composite heat transfer member (9) has a carbon plate (1) and a metal cast-molded article (8) covering the surfaces of the plate (1).

Certain aspects of the present disclosure provide a heat-dissipating device with enhanced interfacial properties. One example heat-dissipating device generally includes a first heat spreader configured to be thermally coupled to a region configured to generate heat, a second heat spreader, an interposer thermally coupled to at least one of the first heat spreader or the second heat spreader, at least one interfacial layer comprising a graphene material disposed on at least one surface of the interposer, and a phase change material disposed between the at least one interfacial layer and at least one of the first heat spreader or the second heat spreader and thermally coupled to at least one of the first heat spreader or the second heat spreader.

The disclosure provides a liquid cooling heat exchanger, comprising a first cover plate, a second cover plate and a fin, the first cover plate and the second cover plate stacked on each other so as to form a chamber therebetween, the fin disposed within the chamber, the first cover plate made of a composite material, wherein there is a bonding layer between the first cover plate and the second cover plate, and the bonding layer has a melting point lower than melting points of the first cover plate, the second cover plate and the fin. The disclosure also relates to a method for making the liquid cooling heat exchanger.

Brazing sheet having a core layer made of a first aluminium alloy, attached to one side of said core layer a sacrificial cladding made of a second aluminium alloy, and attached to the other side of said core layer a braze cladding made of a third aluminium alloy. The first aluminium alloy consists of: Si 0.6 wt %; Fe 0.7 wt %; Cu 0.4-0.9 wt %; Mn 1.0-1.6 wt %; Mg 0.2 wt %; Cr 0.05-0.15 wt %; Zr 0.05-0.15 wt %; Ti 0.05-0.15 wt %; other elements 0.05 wt % each and 0.2 wt % total; Al balance up to 100 wt %; the second aluminium alloy consists of: Si 0.65-1.0 wt %; Fe 0.4 wt %; Cu 0.05 wt %; Mn 1.4-1.8 wt %; Zn 1.5-4.0 wt %; Zr 0.05-0.20 wt %; other elements 0.05 wt % each and 0.2 wt % total; Al balance up to 100 wt %. The third aluminium alloy has a melting point lower than said first and second aluminium alloys.

An aluminum alloy brazing sheet for a heat exchanger includes a three-layer material in which a brazing material layer, an intermediate layer, and a core material are cladded and stacked, the intermediate layer is formed of an aluminum alloy which can include Mn, Si, Fe, and Cu, with the balance being Al and inevitable impurities, the core material is formed of an aluminum alloy which can include Si, Fe, Cu, and Mn, with the balance being Al and inevitable impurities, and the brazing material layer is formed of an aluminum alloy including Si, with the balance being Al and inevitable impurities.

A heat-dissipating structure includes a plurality of heat-dissipating layers and at least one heat-buffering layer. The heat-dissipating layers are stacked together. Each of the heat-dissipating layers is formed by a thermally conductive metal coated polymer fiber or thermally conductive metal fiber. The at least one heat-buffering layer is disposed between the heat-dissipating layers.

A collector tube for a heat exchanger, which may have at least one flat tube, may include a base and a cover arranged opposite one another and embodying a longitudinal duct. The base may have at least one passage having an opening for accommodating the at least one flat tube of the heat exchanger. The at least one passage may have a collar, which may extend away from the longitudinal duct. The cover may have at least one notch, which may be located opposite the at least one passage and which may be embodied for accommodating a subarea of the at least one flat tube.

Provided is an aluminum alloy clad material including an aluminum alloy core material, an intermediate layer material that is clad on one surface of the core material, and a first brazing filler metal that is clad on a surface of the intermediate layer material, the surface not being on the core material side, wherein the core material, the intermediate layer material, and the first brazing filler metal each include an aluminum alloy having a predetermined composition, the existence density of AlMn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 m inclusive in the intermediate layer material before brazing heating is at least 1.010.sup.5 pieces/mm.sup.2, and the existence density of AlMn based intermetallic compounds having a circle-equivalent diameter between 0.1 and 1.0 m inclusive in the intermediate layer material after brazing heating is at least 1.010.sup.4 pieces/mm.sup.2. Further provided is a method for producing the aluminum alloy clad material.

An aluminum alloy brazing sheet used for brazing aluminum, without using a flux, in an inert gas atmosphere or vacuum is formed by arranging a brazing material on one side or both sides of a core material made of pure aluminum or aluminum alloy, the brazing material including 6% to 13% by mass of Si and the balance being Al and inevitable impurities, and performing cladding with an intermediate material interposed between the core material and the brazing material, the intermediate material including 0.01% to 1.5% by mass of Bi, 1.5% to 13% by mass of Si, and the balance being Al and inevitable impurities, the intermediate material having a thickness of 2% to 35% of a thickness of the brazing material, wherein one or both of the intermediate material and the core material includes 0.4% to 6% by mass of Mg.

Disclosed is a technology for improving corrosion resistance of aluminum tubes, aluminum fins, and aluminum headers of a heat exchanger. The heat exchanger includes one or more tubes made of aluminum alloy, one or more headers made of aluminum alloy, one or more brazing header clads, one or more fins (or heat sinks) made of aluminum alloy, and one or more brazing fin clads. The corrosion potential of the tube ranges from 950 mV to 650 mV, the corrosion potential of the header has a difference of 0 mV to 150 mV with respect to the corrosion potential of the tube, and the corrosion potential of the header clad has a difference of 20 mV to 100 mV with respect to the corrosion potential of the tube.