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Hyunwook Nam
Hyunwook Nam
在 rs.tus.ac.jp 的电子邮件经过验证
标题
引用次数
引用次数
年份
Structural and electrical characteristics of potential candidate lead-free BiFeO3-BaTiO3 piezoelectric ceramics
S Kim, GP Khanal, HW Nam, I Fujii, S Ueno, C Moriyoshi, Y Kuroiwa, ...
Journal of Applied Physics 122 (16), 2017
1192017
Influence of quenching temperature on piezoelectric and ferroelectrics properties in BaTiO3-Bi (Mg1/2Ti1/2) O3-BiFeO3 ceramics
H Nam, S Kim, T Aizawa, I Fujii, S Ueno, S Wada
Ceramics International 44, S199-S202, 2018
392018
In-situ electric field induced lattice strain response observation in BiFeO3–BaTiO3 lead-free piezoelectric ceramics
S Kim, GP Khanal, HW Nam, M Kim, I Fujii, S Ueno, C Moriyoshi, ...
Journal of the Ceramic Society of Japan 126 (5), 316-320, 2018
202018
Piezoelectric Actuation Mechanism Involving Extrinsic Nanodomain Dynamics in Lead‐Free Piezoelectrics
S Kim, R Miyauchi, Y Sato, H Nam, I Fujii, S Ueno, Y Kuroiwa, S Wada
Advanced Materials 35 (11), 2208717, 2023
172023
Lead-Free BiFeO3-Based Piezoelectrics: A Review of Controversial Issues and Current Research State
S Kim, H Nam, I Calisir
Materials 15 (13), 4388, 2022
142022
A-site cation off-centering contribution on ferroelectricity and piezoelectricity in pseudo-cubic perovskite structure of Bi-based lead-free piezoelectrics
S Kim, H Nam, I Fujii, S Ueno, C Moriyoshi, Y Kuroiwa, S Wada
Scripta Materialia 205, 114176, 2021
142021
Effects of AC-and DC-bias field poling on piezoelectric properties of Bi-based ceramics
S Kim, GP Khanal, H Nam, I Fujii, S Ueno, S Wada
Journal of the Ceramic Society of Japan 127 (6), 353-356, 2019
142019
Thermal annealing induced recovery of damaged surface layer for enhanced ferroelectricity in Bi-based ceramics
H Nam, S Kim, GP Khanal, I Fujii, S Ueno, S Wada
Japanese Journal of Applied Physics 58 (SL), SLLD04, 2019
122019
Effect of A-site off-stoichiometry on ferroelectric and piezoelectric properties of BaTiO3–Bi (Mg1/2Ti1/2) O3–BiFeO3 ceramics
H Nam, I Fujii, S Kim, T Aizawa, S Ueno, S Wada
Journal of the Ceramic Society of Japan 127 (6), 369-373, 2019
102019
Material softening by cation off-centering in Bi-based lead-free piezoelectric ceramics
S Kim, H Nam, I FUJII, U Shintaro, C Moriyoshi, Y Kuroiwa, S Wada
Japanese Journal of Applied Physics, 2021
82021
Variation of leakage current conduction mechanism by heat treatment in Bi-based lead-free piezoelectric ceramics
S Kim, H Nam, P Sapkota, GP Khanal, I Fujii, S Ueno, S Wada
Journal of Applied Physics 129 (9), 2021
82021
Composition dependence of structural and piezoelectric properties in Bi (Mg0. 5Ti0. 5) O3-modified BaTiO3-BiFeO3 ceramics
H Nam, I Fujii, S Kim, T Ishii, S Ueno, GP Khanal, Y Kuroiwa, S Wada
Japanese Journal of Applied Physics 61 (SN), SN1033, 2022
72022
Gravity-induced structural deformation for enhanced ferroelectric performance in lead-free piezoelectric ceramics
S Kim, H Nam, JU Rahman, P Sapkota
Scripta Materialia 244, 116021, 2024
22024
Fabrication of< 100>-oriented Bi (Mg0. 5Ti0. 5) O3-modified BiFeO3-BaTiO3 ceramics and their piezoelectric properties
H Nam, I Fujii, S Nakagawa, S Ueno, S Wada
Japanese Journal of Applied Physics 62 (SM), SM1002, 2023
22023
Optimization of conditions for AC plus DC poling above Curie temperature of barium titanate ceramic for piezoelectric property enhancement
AT Shibiru, I Fujii, H Nam, P Sapkota, GP Khanal, Z Wang, S Ueno, ...
Journal of the Ceramic Society of Japan 132 (7), 346-349, 2024
12024
Advancing piezoelectric properties of barium titanate ceramic through AC+ DC field poling over Curie temperature
AT Shibiru, I Fujii, P Sapkota, H Nam, GP Khanal, S Ueno, S Wada
Japanese Journal of Applied Physics 63 (8), 08SP10, 2024
2024
Dipole pinning and quenching effects on depolarization temperature of ZnO and (Bi0. 5Na0. 5) TiO3 ceramics composites
K Okada, Y Takagi, H Nam, H Nagata
Journal of the Ceramic Society of Japan 132 (7), 330-338, 2024
2024
Enhanced piezoelectric properties of〈 110〉 grain-oriented 0.50 (Bi0. 5Na0. 5) TiO3–0.50 BaTiO3 ceramics by domain engineering above Curie temperature
Z Wang, I Fujii, S Saito, H Nam, AT Shibiru, S Ueno, S Wada
Journal of the Ceramic Society of Japan 132 (7), 350-357, 2024
2024
Small-signal piezoelectric properties on Mn-doped BiFeO3–BaTiO3 lead-free piezoelectric ceramics
K Nozoe, T Oana, H Nam, Y Takagi, H Nagata
Journal of the Ceramic Society of Japan 132 (7), 339-345, 2024
2024
Fabrication of BaTiO3–Bi (Mg0. 5Ti0. 5) O3–BiFeO3 ceramics at lower temperature by using citrate method
S Nakagawa, I Fujii, H Nam, S Ueno, S Wada
Journal of the Ceramic Society of Japan 132 (7), 358-363, 2024
2024
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