Results 151 to 160 of about 1,290 (187)

Ultrasonic Velocities in BaTiO₃

Journal of the Physical Society of Japan, 1973
The sound velocities in BaTiO 3 has been observed near its paraelectric to ferroelectric phase transition point. The anomalous part of the sound velocity of the longitudinal wave propagating along [100] direction depends on temperature as A [( T - T 0 )/ T 0 ] -ζ with ζ=0.41 and A =1.79×10 4 cm·sec -1 where T 0 is the paraelectric temperature.
Shoji Kashida, Ichiro Hatta, Akira Ikushima, Yasusada Yamada   +3 more
openaire   +1 more source

Photorefractive surface grating in BaTiO/sub 3/

Proceedings of the 6th International Scientific and Practical Conference of Students, Post-graduates and Young Scientists. Modern Techniques and Technology. MTT'2000 (Cat. No.00EX369), 2002
We present the theoretical model of a photorefractive surface grating in Z-cut of BaTiO/sub 3/ crystal at steady state. Taking the crystal surface to be traction free we consider two cases: (a) dielectric boundary and (b) short-circuited (metallized) boundary.
A.M. Kirillov, S.M. Shandarov, N.I. Burimov   +2 more
openaire   +1 more source

Curie Temperature of BaTiO₃

Japanese Journal of Applied Physics, 1995
The Curie point (T C) of BaTiO3 was earlier reported to be 120° C and has been recently believed to be 130° C. Some experiments have been performed here to reconfirm the T C. Firing conditions used for preparing BaTiO3 were examined first with the use of pure BaCO3 or Ba(NO3)2 and TiO2.
Ken-ichi Sakayori, Yasunori Matsui, Hiroyuki Abe, Eiji Nakamura, Mikihiko Kenmoku, Tomoyuki Hara, Daisuke Ishikawa, Akihiro Kokubu, Ken-ichi Hirota, Takuro Ikeda Takuro Ikeda   +9 more
openaire   +1 more source

Effects of annealing atmosphere on photorefractive BaTiO 3

SPIE Proceedings, 2002
Nominally undoped BaTiO3 crystals, processed in atmospheres of various oxygen partial pressure at 900 degree(s)C and 1000 degree(s)C, respectively, were fabricated and systematically investigated. The photorefractive properties are sequentially controlled by the factor from dark decay, deep/shallow trap, deep/shallow trap with hole/electron competition
Jenq-Yang Chang, Chih-Ying Huang, Ching-Cherng Sun   +2 more
openaire   +1 more source

Датчик влажности на основе BaTiO[3]

2023
Целью настоящей работы являлось исследование влияния влажности воздуха на электрофизические свойства полупроводниковой керамики титаната бария, легированной марганцем. Датчики на основе полупроводниковой керамики Ba[0,99]Mn[0,01]TiO[3] могут быть перспективны не только для измерения влажности газов, но и для экспресс-анализа влагосодержания других ...
openaire   +1 more source

Recollections of the BaTiO₃family

Ferroelectrics, 1992
Abstract From the viewpoint that the space available to constituent ions may dominantly influence the lattice instabilities, the displacive phase transitions of the perovskite-type oxide crystals are comparatively surveyed. The limit of applicability of this approach is also considered in connection with other possible mechanisms.
openaire   +1 more source

Thermocurrents in Paraelectric BaTiO₃

physica status solidi (b), 1968
G. Chanussot, H. Abend
openaire   +1 more source

A novel NiO/BaTiO3 heterojunction for piezocatalytic water purification under ultrasonic vibration

Ultrasonics Sonochemistry, 2023
Kaiqi Wang, Chunran Zhao, Shude Yuan
exaly  

Nonstoichiometry in BaTiO ₃

Journal of the American Ceramic Society, 1972
G. J. CONGER, H. U. ANDERSON
openaire   +1 more source

Ferroelectricity and Antiferroelectricity in BaTiO₃

Journal of the Physical Society of Japan, 1967
Energy densities of polar and antipolar arrays in barium titanate including nonlinear oxygen ...
openaire   +1 more source