In this research, the authors have proposed and developed a new manufacturing process for giant magnetostrictive material (GMM) by using powder metallurgic technique. The results obtained in this paper have verified that the powder metallurgic GMM is quite comparable to that made by the well-established Bridgman Method, in terms of large magneto strain, low hysteresis and high repeatability, and yet at one-third cost. More important is that the powder metallurgy is able to achieve a near-net-shape product regardless to the complexity ofthe geometry and dimension ofthe size. It opens new possibilities to miniaturize the sensors and actuators down to millimeter or sub-millimeter scale.Using the Joule effect and the inverse Wiedemann effect, a GMM pump and torque sensor have developed in this research to show the potential usage ofthe powder metallurgic 0MM in practical applications.
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.