الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
The heat generated during the operation of electric systems and components is an essential issue in electronics and electric circuits industry. Heat sinks and air cooling applications for protecting circuits and components from the generated heat and avoid failure and overheating problems by developing materials which have better behavior in this issue through an air cooling system where materials used as heat sinks. A powder metallurgy process is used for producing a sample material from copper (Cu) and copper based composites. Six composites samples which as copper (Cu) ,copper/diamond (Cu-Di), copper/graphite (Cu-Gr), copper/ graphite coated by silver (Cu-Gr coated Ag), copper/carbon fiber(Cu-CF),copper/carbon fiber coated by copper (Cu-CF coated by Cu). We tests have been conducted including (X-ray diffraction analysis (XRD) and Scanning Electron Microscope (SEM) equipped with an Energy Dispersive Spectrometer (EDS) in addition to heat transfer testing, results obtained including material composition, density, electrical resistance and thermal conductivity. Data collected and evaluated, the coated material introduced better results for heat transfer and effective performance have been shown to be used in heat sinks applications.