Based on the cermet double layer structure, Nb-NbN multi-layer films for solar selective coatings were deposited by direct current reactive magnetron sputtering
Unidirectional Tungsten filament (Wf) reinforced pure Al,Al-6Ti-6Nb and SiCp-Al-6Ti-6Nb matrix composites were prepared by hot-pressing in vacuum atmosphere,the
The grain boundary structure of Cu alloy was observed and the characteristic of the boundaries was studied,including 70∶30 cupronickel and 7 0∶30 brass. The r