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Mohammad Samizadeh Nikoo, a Ph.D. candidate at the Ecole Polytechnique Fédérale de Lausanne (EPFL) Power and Wide-band-gap Electronics Research Laboratory (POWERlab), made an unexpected discovery while doing research on phase transitions in vanadium dioxide (VO2). Around ambient temperature, VO2 has an insulating phase and, at 68 °C, undergoes a rapid transition from an insulator to a metal, changing its lattice structure. Samizadeh Nikoo asserts that VO2 has a volatile memory because "it immediately returns to the insulating state after the excitation is removed." For his thesis, he set out to determine how long it takes for VO2 to transition between states. His research, however, took an unexpected turn when, after taking hundreds of measurements, he identified a memory effect in the composition of the material. Samizadeh Nikoo used an electric current to treat VO2 samples in his research. According to him, "the current traveled through the substance, following a path,...

High-Performance Nanostructured Alloy Made for 3D Printing A dual-phase, nanostructured high-entropy alloy that is effectively 3D printed by researchers offers more strength and ductility than other cutting-edge additively made materials. Image source: UMass Amherst Applications for components might be in the aerospace, medical, energy, and automobile fields. Scientists have developed a dual-phase, nanostructured high-entropy alloy that is 3D printed and has more strength and ductility than other cutting-edge additively created materials. Higher-performance components for use in aerospace, health, energy, and transportation sectors might result from this discovery. Researchers from the University of Massachusetts Amherst and the Georgia Institute of Technology carried out the research. Wen Chen, an associate professor of mechanical and industrial engineering at UMass, and Ting Zhu, a professor of mechanical engineering at Georgia Tech, conducted the study, which will be released in the...