Papers - YAMAMOTO Takahisa
-
A technique to modify the photoluminescence intensity of β-Ga2O3 polycrystals using an electric field during sintering Reviewed
R. ONO, A. Kodaira, T. TOKUNAGA, H. YOSHIDA, T. YAMAMOTO
Journal of Luminescence Vol. 254 page: 119508 2022.11
-
Shell-like structure to limit further densification formed during flash sintering under alternative current electric field for 8mol%Y2O3-doped ZrO2 Reviewed
M. Seko, K. Hattori, Y. Ishino, A. Kodaira, T. Tokunaga, T. Yamamoto
Journal of the Ceramic Society of Japan Vol. 130 ( 11 ) page: 895 - 898 2022.11
-
Microcrack healing in single-crystal cubic zirconia by thermal annealing Invited Reviewed
S. Kayukawa, Y. Katsuyama, A. Kodaira, T. Tokunaga, K. Morita, A. Nakamura, K. Higuchi, T. Yamamoto
Journal of the European Ceramic Society 2022.10
-
Flash self-joining of Y-TZP ceramics assisted with an ACelectric field Reviewed
K. Nambu, T. Kitaoka, K. Morita, K. Soga, T. Tokunaga, T. Yamamoto, H. Masuda, H. Yoshida
Journal of the American Ceramic Society Vol. 106 page: 2073 - 2082 2022.10
-
He buffer gas effect on Nd:YAG-PLD growth of EuxY2−xO3 phosphor thin films Invited Reviewed
S. Suzuki, T. Dazai, K. Kawashima, T. Tokunaga, T. Yamamoto, R. Takahashi
ACS Applied Electronics Materials Vol. 4 page: 4419 - 4426 2022.8
-
Microstructure and tensile strength of electrodeposited Fe-rich bcc FeCoNi medium-entropy alloys Reviewed
A. Watanabe,T. Yamamoto,R. Miyamoto, Y. Takigawa
Materials Science and Technology Vol. 39 ( 15 ) page: 2028 - 2034 2022.8
-
Effect of electron beam irradiation in gas atmosphere during ETEM Reviewed
T. Tokunaga, T. Kawakami, K. Higuchi, Y. Yamamoto, T. Yamamoto
Micron Vol. 158 page: 103289 2022.7
-
Variation of photoluminescence intensity depending on the timing of electric field application during isothermal flash sintering for 3mol%Y2O3-ZrO2 polycrystal Reviewed
A. Itoh, T. Tokunaga, A. Kodaira, H. Yoshida, T. Yamamoto
Ceramics International Vol. 48 page: 28712 - 28717 2022.6
-
Tensile strength of nanocrystalline FeCoNi medium-entropy alloy fabrication using electrodeposition Reviewed
A. Watanabe, T. Yamamoto, Y. Takigawa
Scientific Reports Vol. 12 page: 12076 2022.6
-
Estimation of excess oxygen-vacancy formed by direct-current electric field during flash sintering for 3 mol%–10 mol% Y2O3-doped ZrO2 Reviewed
N. Morisaki, T. Tokunaga, K. Kobayashi, A. Kodaira, T. Yamamoto
Ceramic International Vol. 48 page: 12091 - 12097 2022.5
-
A first attempt of automated shrinkage-rate control flash sintering using a current profile without feedback of shrinkage behavior for 8mol%Y2O3-doped ZrO2 Reviewed
M. Koike, Y. Ishino, T. Tokunaga, T. Yamamoto
Journal of the Ceramic Society of Japan Vol. 130 ( 4 ) page: 327 - 330 2022.4
-
Anelasticity induced by AC flash processing of cubic zirconia Reviewed
H. Masuda, K. Morita, T. Tokunaga, T. Yamamoto, H. Yoshida
Acta Materialia Vol. 227 page: 117704 2022.2
-
Electrode Overvoltage Model for a Flash State of Yttria-Stabilized Zirconia: Validity, Limitation, and Open New Issue Reviewed
K. Kobayashi, T. Yamamoto, K. Morita, T. S. Suzuki
Journal of the Ceramic Society of Japan Vol. 130 ( 1 ) page: 172 - 179 2022.1
-
Densification of Y2O3 by flash sintering under an AC electric field Reviewed
Kohta Nambu, Koji Morita, Kohei Soga, Takahisa Yamamoto, Hiroshi Masuda, Hidehiro Yoshida
Journal of the European Ceramic Society Vol. 42 page: 567 - 575 2021.11
-
Direct determination of a topmost atomic layer of (100) surfaces on (La0.3Sr0.7)(Al0.65Ta0.35)O3 single crystals annealed in air by high-resolution scanning transmission electron microscopy Reviewed
Y. Tokuda, T. Irimoto, N. Nishikawa, Y. Katsuyama, S. Kobayashi, T. Tokunaga, and T. Yamamoto
Surface and Interface Analysis Vol. 54 ( 11 ) page: 212 - 217 2021.11
-
Photoluminescence property of quinary Ag-(In,Ga)-(S,Se) quantum dots with a gradient alloy structure for in vivo bioimaging Reviewed
Nurmanita Rismaningsih, Hiroki Yamauchi, Tatsuya Kameyama, Takahisa Yamamoto, Saho Morita, Hiroshi Yukawa, Taro Uematsu, Yoshinobu Baba, Susumu Kuwabata, Tsukasa Torimoto
Journal of Materials Chemistry C Vol. 9 ( 37 ) page: 12791 - 12801 2021.8
-
Rapid sintering of 3 mol% Y2O3-doped ZrO2 by a combined rapid furnace heating and shrinkage-controlled flash sintering protocol Reviewed
Yuki ISHINO, Kimihiro TAGUCHI, Ayu KODAIRA, Tomoharu TOKUNAGA, Takahisa YAMAMOTO
Journal of the Ceramic Society of Japan Vol. 129 ( 8 ) page: 551 - 554 2021.8
-
He Buffer Gas for Moderating the Kinetic Energy of Pulsed Laser Deposition Plumes Reviewed
Ryota Takahashi, Takahisa Yamamoto, Mikk Lippmaa
Crystal Growth & Design Vol. 21 ( 9 ) page: 5017 - 5026 2021.7
-
Near complete densification of flash sintered 8YSZ: controlled shrinkage rate effects Reviewed
Kimihiro TAGUCHI, Yuki ISHINO, Tomoharu TOKUNAGA, Takahisa YAMAMOTO
Journal of the European Ceramic Society Vol. 41 ( 8 ) page: 4567 - 4571 2021.7
-
Shrinkage rate control during a flash state by current-ramping for 3mol%Y2O3-doped ZrO2 polycrystals Reviewed
Yuki ISHINO, Kimihiro TAGUCHI, Masao KOIKE, Tomoharu TOKUNAGA, Takahisa YAMAMOTO
Journal of the American Ceramic Society Vol. 104 ( 10 ) page: 4960 - 4967 2021.5