Recently, titanium-tantalum alloys have been studied as implant materials for dental and orthopedic surgery. However, titanium and tantalum are difficult to mix by common arc melting and induction melting, because of their high melting point and the marked difference between their densities (Ti: 1,680 degrees C, 4.5 g/cm3, Ta: 2,990 degrees C, 16.6 g/cm3). Thus, the Cold Crucible Levitation Mel...

Wearable thermoelectric generators (TEGs) are considered as a promising power supply for low wearable electronics. To obtain high (TE) generation, the focus should be on two main factors, including TE materials and configurations of legs. Concerning these this paper provides comprehensive review recent studies TEGs. In general, can classified into three categories, inorganic, organic, hybrid (i...