A5101964574- Acoustic Wave Resonator Technologies
- Ferroelectric and Piezoelectric Materials
- Microwave Dielectric Ceramics Synthesis
- Ultrasonics and Acoustic Wave Propagation
- Supercapacitor Materials and Fabrication
- Nanowire Synthesis and Applications
- Luminescence Properties of Advanced Materials
- Advanced Materials and Mechanics
- Semiconductor materials and interfaces
- Chalcogenide Semiconductor Thin Films
- Electrospun Nanofibers in Biomedical Applications
- Advanced Thermoelectric Materials and Devices
- Gas Sensing Nanomaterials and Sensors
- Advanced MEMS and NEMS Technologies
- Advanced Semiconductor Detectors and Materials
- Thermal properties of materials
- Advanced ceramic materials synthesis
- Graphene research and applications
- MXene and MAX Phase Materials
- Human Motion and Animation
National Institute for Materials Science
2015-2021
University of Tsukuba
2017
Waseda University
2015-2016
Construction of cellular architectures has been expected to enhance materials' mechanical tolerance and stimulate broaden their efficient utilizations in many potential fields. However, hitherto, there have rather scarce developments boron nitride (BN)-type because well-known difficulties the syntheses BN-based structures. Herein, cellular-network multifunctional foams made interconnective nanotubular hexagonal BN (h-BN) are developed using carbothermal reduction-assisted situ chemical vapor...
Abstract Ideal materials for modern electronics packaging should be highly thermoconductive. This may achieved through designing multifunctional polymer composites. Such composites generally via effective embedment of functional inorganic fillers into desirable polymeric bodies. Herein, two types high‐performance 3D h ‐BN porous frameworks (3D‐BN), namely, nanorod‐assembled networks and nanosheet‐interconnected frameworks, are successfully created an in situ carbothermal reduction chemical...
Piezoelectric Ca3TaGa3Si2O14 (CTGS) single crystals are grown by the Czochralski technique and investigated in detail for high temperature sensor applications. The influence of oxygen partial pressure during growth on material properties is use Ir crucibles, as well Pt ones. Colorless obtained, indicating that typical yellowish coloration CTGS related with Ir-crucibles. Colored present three absorption bands at 340, 450 1790 nm, however, crystal defects do not affect electrical crystals....
Polycrystalline higher manganese silicides Mn1–xCrxSi1.74 (x = 0, 0.10, 0.20) with Cr single doping and Mn1–2yCryFeySi1.74 (y Cr–Fe double have been prepared by arc melting spark plasma sintering. Hall effect results thermoelectric transport properties measurements demonstrate that effectively increases the carrier concentration, thereby giving rise to enhanced electrical conductivity power factor. Coupled an enlarged effective mass a reduction in lattice thermal conductivity, maximum zT is...
Among the langasite family, Ca3TaAl3Si2O14 (CTAS) is particularly promising for high temperature sensor applications due to its relatively resistivity. In this work, CTAS single crystals have been grown by Czochralski technique under various oxygen partial pressures using Ir and Pt crucibles. Colorless were first time; however, elimination of related defects did not influence electrical properties. Furthermore, dielectric piezoelectric properties independent growth conditions. Instead,...
A high quality CTGAS single crystal with excellent properties for temperature sensor applications.