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In this study, Sn-0.7Cu solder alloy was reinforced with Al2O3 (50 nm) and ZrO2 (45 nm) nano particulates to form Sn-0.7Cu/Al2O3 and Sn-0.7Cu/ZrO2 composites. The volume percentge of the Al2O3 and ZrO2 nanoparticulate reinforcement was kept at 1.5%. The composites were synthesized using powder metallurgy technique assisted with microwave sintering and incorporating hot extrusion as secondary processing...
In this study, the Ni-based (Ni59Zr20Ti16Si2Sn3) BMG powders were produced by the high pressure gas atomization process, and the ductile Cu powders were mixed using the spray drying process or the ball milling process. The Ni-based amorphous powders and Cu added composite powders were compacted by a simple die hot press and a spark plasma sintering (SPS) processes into cylindrical. In the hot press,...
Mechanical properties of two sorts of CuCr(75/25) contact materials adopted widely for vacuum interrupters were determined by standard tensile test and impact test, and fracture characteristics of these two materials after tests were analyzed by optical and SEM equipped with EDS. It was shown that the tensile strength, ductility and impact strength of Cu-25Cr alloy contact material by vacuum casting...
SAC (SAC) based composite solders functionalized with single-wall carbon nanotubes (SWCNTs), nano particles such as nano-Ni, nano-Mo with various weight proportions ranging from 0.01 wt% to 5 wt% were successfully produced The composite solders with different wt% of nano particle and nanotube addition were synthesized using the sintering technique The microstructural, melting and mechanical properties...
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