Synthesis of W-AG Nanoalloys and Computer Aided Thermal Analysis of W-AG Nanoalloys Based Heat Sink

W-Ag finds applications in many frontier areas such as heat sinks and microwave absorbers for microelectronics devices, arcing tips, resistance welding electrodes, electrical contacts and heavy duty electronic contacts. These nanoalloys prepared by mechanical milling process result in highly dense product. Chemical approaches have significant advantages in terms of better stoichiometric control, purity and controllable particle size. The variation in chemical composition of these composites allows the match of thermal expansion coefficient with ceramic substrates used in semiconductor devices. In the present study, Ag nanoalloys with average sizes below 200 nm were prepared using tungsten powder and silver nitrate as precursors. Compositional characterization of W-Ag nanoalloys was carried out using portable XRF.The developed material i.e. W-Ag is used as heat sink application in which the heat sink is modeled and thermally analyzed for evaluation of heat flux. The heat flux obtained was compared with aluminum heat sink. It was perceived that W-Ag heat sink exhibited superiority in withstanding higher temperature. Whereas, heat sink designed from aluminum was limited with their parameter which is thermal conductivity

UNS C16200

UNS No. C16200 is a copper-cadmium alloy with high electrical and thermal conductivities combined with high strength and toughness. It is recommended for resistance-welding electrodes, back-up bars and current carrying rings. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-535. Producer or source: Copper alloy producers. See also Alloy Digest Cu-541, October 1988.

ANACONDA ALLOY 182

ANACONDA Alloy 182 is a copper-base alloy containing nominally 0.85% chromium. It offers relatively high electrical conductivity, good strength and hardness and some resistance to softening at elevated temperatures. Among its uses are resistance welding electrodes, switchgear, and electrical and electronic components. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-438. Producer or source: Anaconda American Brass Company.

AMPCOLOY 99

AMPCOLOY is a copper-cadmium alloy with high electrical and thermal conductivities in combination with high strength and toughness. Among its many applications are current-carrying rings, resistance-welding electrodes and back-up bars. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-315. Producer or source: Ampco Metal Inc..

COPPER ALLOY No. 162

COPPER ALLOY No. 162 is a copper-cadmium alloy with high electrical and thermal conductivities combined with high strength and toughness. It is recommended for resistance-welding electrodes, back-up bars and current-carrying rings. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Cu-289. Producer or source: Copper alloy producers.