Zobrazeno 1 - 5
of 5
pro vyhledávání: '"Seok-Jung Park"'
Autor:
Su-Hwan Go, Dae-Su Kim, Yeon-Gyeong Chae, Seok-June Chae, Eun-Ji Kim, Hyeon-Min Yu, Bum-Joo Kim, Seok-Jung Park, Joun-Ho Lee, Sahn Nahm
Publikováno v:
Actuators, Vol 12, Iss 2, p 66 (2023)
An amount of 3.0 mol% NaNbO3 seeds was used to align the grains of 0.96(Na0.5K0.5)(Nb0.93Sb0.07)O3-(0.04−x)SrZrO3-x(Bi0.5Ag0.5)ZrO3 [NKNS-(0.04−x)SZ-xBAZ] thick films (0.0 ≤ x ≤ 0.04) along the [001] direction. All the textured thick films ha
Externí odkaz:
https://doaj.org/article/fd408c54f3a845f6b3f5f0478a6eefdf
Autor:
Yeon-Gyeong Chae, Seok-June Chae, Su-Hwan Go, Eun-Ji Kim, Seok-Jung Park, Hyunseok Song, Sahn Nahm
Publikováno v:
International Journal of Energy Research. 2023:1-20
The output power of piezoelectric energy harvester (PEH) at the resonance frequency is dependent on the electromechanical coupling factor ( k p ) of the piezoceramic, which is proportional to d 33 / ε T 33 1 / 2 , where d 33 and ε T 33 are the piez
Publikováno v:
Transactions of the Korean hydrogen and new energy society. 26:547-553
Autor:
Seok Jung Park, Hwi Yeol Park, Hyeung Gyu Lee, Minkyu Choi, Hyung Won Kang, Hwac Joo Lee, In Tae Seo, Kyung Hoon Cho, Sahn Nahm
Publikováno v:
Journal of the American Ceramic Society. 91:3955-3960
CuO was used to enhance the sinterability of 0.95(Na0.5K0.5)NbO3–0.05SrTiO3 (0.95NKN–0.05ST) ceramics. The poor sinterability of 0.95NKN–0.05ST ceramics was improved by the addition of 1.5 mol% CuO, so that they were well sintered even at 960°
Autor:
Duk Hee Kim, Kyung Hoon Cho, Seok Jung Park, Sahn Nahm, Hwi Yeol Park, Byung Hyun Choi, Hyeung Gyu Lee
Publikováno v:
Materials Research Bulletin. 43:3580-3586
The addition of a small amount of CuO to the 0.95(Na0.5K0.5)NbO3–0.05CaTiO3 (0.95NKN–0.05CT) ceramics sintered at 960 °C for 10 h produced a dense microstructure with large grains due to the liquid phase sintering. Due to the negligible Na2O eva