S
Sangwook Kim
Researcher at Hiroshima University
Publications - 52
Citations - 940
Sangwook Kim is an academic researcher from Hiroshima University. The author has contributed to research in topics: Ferroelectricity & Piezoelectricity. The author has an hindex of 11, co-authored 44 publications receiving 597 citations. Previous affiliations of Sangwook Kim include Changwon National University & University of Yamanashi.
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Journal ArticleDOI
High-Performance Lead-Free Piezoceramics with High Curie Temperatures
Myang Hwan Lee,Da Jeong Kim,Jin Su Park,Sangwook Kim,Tae Kwon Song,Myong-Ho Kim,Won-Jeong Kim,Dalhyun Do,I.-K. Jeong +8 more
TL;DR: By adding the super-tetragonal bismuth gallium oxide to the compound, the piezoelectric properties are as good as those of lead zirconate titanate ceramics.
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Structural and electrical characteristics of potential candidate lead-free BiFeO3-BaTiO3 piezoelectric ceramics
Sangwook Kim,Gopal Prasad Khanal,Hyunwook Nam,Ichiro Fujii,Shintaro Ueno,Chikako Moriyoshi,Yoshihiro Kuroiwa,Satoshi Wada +7 more
TL;DR: In this article, the crystal structures and electrical properties of lead-free BiFeO3-BaTiO3 [(1-x)BFxBT] piezoelectric system are investigated as a function of BaTiO 3 concentration.
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A correlation between piezoelectric response and crystallographic structural parameter observed in lead-free (1-x)(Bi0.5Na0.5)TiO3–xSrTiO3 piezoelectrics
Sangwook Kim,Sangwook Kim,Haein Choi,Sungjin Han,Jin Su Park,Myang Hwan Lee,Tae Kwon Song,Myong-Ho Kim,Dalhyun Do,Won-Jeong Kim +9 more
TL;DR: In this article, the structure of lead-free (1-x)(Bi0.5Na 0.5)TiO3-SrTiOO3 (BNT-STx) ceramics was analyzed by the Rietveld method, using X-ray diffraction and neutron scattering data.
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Electrical properties and phase of BaTiO3–SrTiO3 solid solution
Sangwook Kim,Heekyu Choi,Myang Hwan Lee,J. S. Park,Da Jeong Kim,Dalhyun Do,Myong-Ho Kim,Tae Kwon Song,Won-Jeong Kim +8 more
TL;DR: In this paper, the crystal structure of BaTiO3 was investigated by a Rietveld refinement method; Fullprof, using X-ray diffraction data, within the reasonable goodness of fit, tetragonal symmetry was found in BST with x≤0.2.
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Revealing the role of heat treatment in enhancement of electrical properties of lead-free piezoelectric ceramics
Sangwook Kim,Gopal Prasad Khanal,Shintaro Ueno,Chikako Moriyoshi,Yoshihiro Kuroiwa,Satoshi Wada +5 more
TL;DR: The structural and electrical properties of the virgin, annealed, and quenched samples of 0.80BiFeO3-0.20BaTiO3 lead-free ceramics were investigated in this paper.