Diamond/copper composite coating is promising for wear-resistant applications, owing to the extreme hardness of diamond reinforcement. Ti-coated diamond/copper coatings with various laser powers were successfully fabricated employing novel manufacturing technology supersonic deposition (SLD). diamond, which was able enhance wettability between and copper, prepared at optimal parameters via salt...

recovery of gold and other valuable metals from electronic scrap involves a complex metallurgical flow sheet and requires state-of-the-art recovery technologies that are available in large-scale, integrated smelter and refinery operations. at the end of their use, electronic and other electrical product scrap offer an important recycling potential for the secondary supply of gold and silver int...

Objectives—To investigate the eVects of ethylene glycol monomethyl ether (EGME) on haematology and reproduction in exposed workers. Methods—53 Impregnation workers from two factories that make copper clad laminate with EGME as a solvent were recruited as the exposed group. Another group of 121 lamination workers with indirect exposure to EGME was recruited as the control group. Environmental mo...

Dust from thermal processes may catalytically enhance the formation of chlorinated aromatic compounds under oxygen-rich conditions. The activities of two dust samples from electric arc furnaces and one from iron ore-based steelmaking (oxygen converter) were investigated in a laboratory experiment. The dust samples were heated at 300 degrees C for 2 h in an air atmosphere. The concentrations of ...