Zobrazeno 1 - 10
of 134
pro vyhledávání: '"Chae Il Cheon"'
Publikováno v:
Journal of the Korean Ceramic Society.
Autor:
Chae Il Cheon, Bit Chan Kim
Publikováno v:
Journal of the Korean Ceramic Society. 57:578-584
Electro-caloric effect (ECE) was investigated in BaTiO3 (BT)-based solid solution ceramics, Ba(Zr,Ti)O3 (BZT), Ba(Sn,Ti)O3 (BST) and (Ba,Ca)(Zr,Ti)O3 (BCZT) with the composition near an invariant critical point (ICP). The samples were fabricated by t
Publikováno v:
Journal of the Korean Physical Society. 76:226-230
BaTiO3 ceramics were fabricated at various sintering temperatures by using a conventional solid-oxide reaction method. The ferroelectric properties and the electro-caloric effect (ECE) were investigated as functions of the sintering temperature. The
Publikováno v:
Materials Letters. 241:202-205
A two-step sintering method for the fabrication of homogeneous microstructures in CuO-doped [(K0.485Na0.515)0.935Li0.065](Nb0.99 Ta0.01)O3 (KNLNT) ceramics without abnormal grain growth is studied. The CuO-doped KNLNT ceramics prepared by normal sint
Publikováno v:
Journal of the Korean Physical Society. 74:269-273
BiFeO3 (BFO) ceramics were prepared by conventional solid-state reaction method without quenching. The effect of the sintering condition on the phase evolution and the ferroelectric properties of these BFO ceramics were investigated. A pinched polari
Autor:
Elie Lefeuvre, Chan-Sei Yoo, H.-W. Kang, N. Kim, D. S. Kim, Alexis Brenes, Seung Ho Han, Chae-Il Cheon
Publikováno v:
2019 19th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS).
This paper compares the system-level parameters and output power of soft-material and hard-material piezoelectric energy harvesters taking into account the material softening nonlinear behavior. We validate the approach by verifying the compatibility
Publikováno v:
Materials Research Bulletin. 96:121-125
The lead-free piezoelectric [(K0.485Na0.515)0.935Li0.065](Nb0.99Ta0.01)O3 (KNLNT) ceramics with a high mechanical quality factor (Qm) were prepared at low sintering temperature below 950 °C for multilayered piezoelectric devices. Co-doping effect of
Publikováno v:
Journal of the Korean Ceramic Society. 54:530-534
Autor:
Chae Il Cheon, Jin Hong Choi, Jeong Seog Kim, Jiadong Zang, Frömling, Till, Rödel, Jürgen, Wook Jo
Publikováno v:
Journal of Applied Physics; 2016, Vol. 119 Issue 15, p154101-1-154101-5, 5p
Publikováno v:
Ceramics International. 42:10399-10404
The effects of Mn doping were investigated in 0.75BiFeO 3 –0.25BaTiO 3 ceramics sintered at 940–1020 °C in air. 0.75BF–0.25BT ceramics doped with 0–0.7 wt% MnO 2 were prepared by a conventional ceramic process. The effects of the doping are