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Ultrasound-assisted dipping was performed to fabricate a Sn coating layer on the Al2O3 ceramic, then the as-coated Al2O3 ceramics were ultrasonically soldered with Ni-foam reinforced Sn and Sn-9Zn composite solders, respectively. Effects of ultrasonic soldering time on the microstructure and mechanical properties of joints were investigated. A pure Sn metallization layer which exhibited excellent...
Ultra-high temperature ceramic (UHTC) hybrid powders modified using in situ grown SiC nanowires (SiCNWs) were successfully prepared via a simple catalytic method. The self-produce carbon and silicon source promoted the growth of SiCNWs during the pyrolysis process of ZrB2 polymer precursors coated ZrB2-SiC powders. The results showed that the growth of SiCNWs could be explained by a tip-growth model...
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