Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Toshihiro Ifuku"'
Autor:
Takayuki Watanabe, Makoto Kubota, Hisato Yabuta, Takanori Matsuda, Toshihiro Ifuku, Tatsuo Furuta, Hidenori Tanaka, Yasuhiro Yoneda
Publikováno v:
Scientific Reports
To stabilise ferroelectric-tetragonal phase of BaTiO3, the double-doping of Bi and Mn up to 0.5 mol% was studied. Upon increasing the Bi content in BaTiO3:Mn:Bi, the tetragonal crystal-lattice-constants a and c shrank and elongated, respectively, res
Autor:
Hiroshi Funakubo, Toshihiro Ifuku, Bong-Yeon Lee, Nobuhiro Kumada, Takayuki Watanabe, Takanori Matsuda, Takashi Iijima, Houzhona Yu, Jumpei Hayashi
Publikováno v:
Journal of the Ceramic Society of Japan. 118:717-721
This paper reports on the piezoelectric anomalies at the temperature or composition-induced ferroelastic phase transitions of tungsten bronze ferroelectrics. First, the temperature-dependent piezoelectric properties of Sr1.9Ca0.1NaNb5O15 (SCNN) ceram
Autor:
Satoko Nagashima, Kiyoshi Tsuchida, Toshihiro Ifuku, Hideaki Maeda, Yasunori Tanaka, Takanori Matsuda, Akio Kato, Yoshihiro Nakao
Publikováno v:
Korean Journal of Chemical Engineering. 13:478-481
Thermoelectric properties of several oxides were investigated. Al2O3-, TiO2- or ZrO2-doped ZnO showed large power factor over the wide temperature range. Fe2O3. showed large power factor by doping of TiO2. BaO-doped RuO2, BaRuOi3 and CaRuO3 showed la
Autor:
Hiroshi Funakubo, Tomoaki Yamada, Hitoshi Morioka, Yoshitaka Ehara, Mitsumasa Nakajima, Takashi Fujisawa, Hiroshi Nakaki, Satoru Utsugi, Toshihiro Ifuku
Publikováno v:
MRS Proceedings. 1199
Crystal structure change with the temperature was investigated for 3 m-thick (100)/(001)-oriented epitaxial PbTiO3 films grown on SrTiO3 substrates. Complex strain-relaxed domain structure labeled as Type III was observed and directly transformed to