Combinatorial technology is a powerful tool for new material exploration. Some new combinatorial technologies, such as combinatorial laser molecular beam epitaxy (CLMBE) and combinatorial pulsed laser deposition (CPLD), were introduced in the paper. La1-xCexVO3 (0≤x≤1) composition-spread films were fabricated successfully by CPLD, while their thermoelectric properties and structures were evaluated by the multi-channel thermoelectric measurement system and concurrent X-ray analysis respectively. Combinatorial technologies are proving to be an efficient, low-cost tool in synthesis and characterization of thermoelectric composition-spread films.
Application of magnesium alloy is restricted by its bad formability and low corrosion
resistance. In order to resolve these problems, rolling-bonding has been tried as a new method.
Pre-heating, rolling and annealing were used in the process of bonding, and aluminum cladding
magnesium alloys obtained. The effects of many parameters in the processes of pre-heating, rolling
and heat-treatment on bonding strength have been analyzed, and the mechanism of rolling-bonding
been studied. It was found that intermediate phase played an important role in the bonding. Good
bonding of aluminum cladding magnesium alloys achieved after annealing at 200oC for 1 hour.
Bulk Fe73Nb3Al2Ge2P9C6B4Si1 metallic glass with the diameter of 2 mm was prepared by copper mold casting. The Fe-based metallic glass exhibits good magnetic properties with high saturation magnetization and low saturated magnetostriction. The saturation magnetization and coercive force remains almost unchanged with annealing temperature below the crystallization temperature. The crystallization leads to the decrease in the softness of magnetic properties. The Fe-based glass exhibits a good correspondence between large glass-forming ability and good soft magnetic properties.
Stronger (0001) basal plane textures mainly include two types: and in AZ31 magnesium alloy thin sheet were formed after hot-rolling. The texture types of hot-rolled AZ31 magnesium alloy thin sheet after annealing at 523K and 673K respectively were as same as that of hot-rolled thin sheet without annealing, but texture intensities became weaker, especially after annealing at 673K. The strong texture of hot-rolled thin sheet caused anisotropy of mechanical properties (tensile strength b, yield strength s and elongation ) significantly , and the anisotropy reduced with the decrease of texture intensity after annealing. Besides texture, the grain shape also effects anisotropy of mechanical properties. The anisotropy becames more significantly with the increase of relative difference of grain diameter between transverse and longitudinal directions.
La1-xCaxVO3 composition-spread films were fabricated by combinatorial pulsed laser deposition and their thermoelectric properties were evaluated paralelly by the multi-channel thermoelectric measurement system. Concurrent X-ray analysis verified the formation of solid solution films in the full composition range (0≤x≤1) as judged from the linear variation of the lattice constants. The power factor of 0.6 µW/cm K2 was achieved in LaVO3 film at 800°C.Large thermoelectric properties in vanadium oxide system can be expected with the change of vanadium ion valence from 3+ to 2+.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.