Dr. Namazu earns Best Paper and Best Technology awards from the Japanese Society of Experimental Mechanics

News Engineering 2021.09.27

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Dr. Takahiro Namazu (Faculty of Engineering, specializing in nanomechanics, nanotechnology, and functional materials) earned the Best Paper Award and Best Technology Award for 2021 from the Japanese Society for Experimental Mechanics (JSEM). The awards from the JSEM encourages progress, development, and improvement of science and technology in the field of experimental mechanics. The Best Paper Award recognizes excellent, original, and novel papers in experimental mechanics, and the Best Technology Award recognizes new experimental mechanical technologies with practical value.

The Best Paper Award was given for a paper entitled “Crystal structural analysis for exothermic reaction of Al/Ni multilayer powder material using synchrotron radiation X-ray diffraction” which reported the results of collaborative research undertaken with Kobe City College of Technology, the Aichi Institute of Technology, and the Japan Synchrotron Radiation Research Institute. They used time-resolved X-ray diffraction to accurately capture the crystal structure change and the exothermic reaction mechanism in a self-propagating exothermic reaction. By capturing the correlation between dynamic crystal structure changes and the propagation of the exothermic reaction, from the face-centered cubic Al and Ni before the reaction to the finally formed intermetallic compound, the factors controlling the exothermic reaction characteristics could be identified.

The Best Technology Award was given for a “Damage-free sampling technology using microforks” which makes it possible to mechanically pick up nanomaterials, such as carbon nanotubes (CNTs) and graphene, and manipulate them via a series of experimental techniques that fix the materials to the tip of a probe. A fork-shaped probe with a bifurcated tip is prepared using a special processing technology. The probe is manipulated in a scanning electron microscope to place it under the target nanomaterial which is then subjected to electron beam-induced deposition, attaching it to the probe. With this technology the nanomaterial between the bifurcated forks can be handled without damage. For example, a tensile test of a single-walled CNTs was performed in a scanning electron microscope. The experimentally observed correlation between the crystal structure and strength of single-walled CNTs made possible by this technology was published in Nature Communications.

In response to these double awards Dr. Namazu said, “I am very pleased to be recognized, together with our students, for creating unique experimental technologies in the field of nanomechanics. I remember the faces of all the students who worked so hard. Without their efforts I would not have received these awards. I would like to continue pursuing good research while working hard from the same perspective as the lab students, and to disseminate useful technologies and research results to the world.”
(Faculty of Engineering, Tadayuki Imai)