Results 161 to 170 of about 684,280 (196)

Fabrication of Textured Bismuth Sodium Titanate Using Excess Bismuth Oxide

Japanese Journal of Applied Physics, 2005
Bi0.5Na0.5TiO3 (BNT) bulk ceramics with a preferred <100> orientation (texture) were prepared by the reactive-templated grain growth method using platelike Bi4Ti3O12 (BiT) particles as templates for BNT. The texture did not develop extensively in stoichiometric BNT, but the addition of excess Bi2O3 to BNT enhanced the texture development. The
Toshio Kimura, Eiichiro Fukuchi, Toshihiko Tani   +2 more
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Combustion technique synthesis of lead-free piezoelectric bismuth sodium titanate-bismuth potassium titanate–barium titanate ceramics

Integrated Ferroelectrics, 2016
ABSTRACTFabrication of lead-free piezoelectric ceramic bismuth sodium titanate–bismuth potassium titanate–barium titanate, focusing on the morphotropic phase boundary (MPB) between the rhombohedral and tetragonal phases was studied. a[0.935(Bi0.5Na0.5)TiO3-0.065BaTiO3]-(1-a)[0.8(Bi0.5Na0.5)TiO3-0.2(Bi0.5K0.5)TiO3]; BNBK ceramics with 0 ≤ a ≤ 1 were ...
Atthakorn Thongtha, Theerachai Bongkarn
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Sodium Bismuth Titanate-Based Ceramics

2011
Dielectric, ferroelectric, and piezoelectric properties including phase transition temperatures of perovskite-type bismuth sodium titanate, (Bi1/2Na1/2)TiO3 [BNT]-based lead-free piezoelectric ceramics have been reviewed from the results obtained by our group being superior candidates for lead-free piezoelectric materials to reduce environmental damage.
Tadashi Takenaka, Hajime Nagata
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ELECTROMECHANICAL CHARACTERIZATION OF LANTHANUM-DOPED SODIUM BISMUTH TITANATE CERAMICS

Modern Physics Letters B, 2006
The effect of lanthanum doping on the electromechanical properties of lanthanum-doped sodium bismuth titanate was studied. The ferroelectric system under investigation was Na 1/2( La x Bi 1-x)1/2 TiO 3 ceramics, with x=0, 0.1, 0.15 and 0.2. Admittance measurements were carried out in the frequency range of 100 Hz to 13 MHz and in the temperature range
Aparna, M., Raghavender, M., Prasad, G., Kumar, G. S.   +3 more
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Structural and electrical properties of bismuth magnesium titanate substituted lead-free sodium bismuth titanate ceramics

Journal of Materials Science: Materials in Electronics, 2016
Bismuth magnesium titanate substituted sodium bismuth titanate lead-free piezoceramics are synthesized by solid state reaction method up to x = 0.06 mole fraction. Samples are poled and influence of substitution on poled ceramics is studied. Dielectric, ferroelectric and piezoelectric properties are analyzed in relation with intrinsic parameters strain
D. E. Jain Ruth, M. Muneeswaran, N. V. Giridharan, B. Sundarakannan   +3 more
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Field-induced strain behavior for potassium sodium bismuth titanate ceramics

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2007
Data are reported for the dielectric, piezoelectric, electrostrictive, and ferroelectric properties of potassium-substituted sodium bismuth titanate, [(K(x)Na(1-x))(0.5)Bi(0.5)]TiO3. For the morphotropic phase boundary composition x = 0.2, relaxor-type behavior was observed at room temperature with piezoelectric (effective d(333) = 325 x 10(-12) m/V ...
James F, Carroll, David A, Payne, Yuji, Noguchi, Masaru, Miyayama   +3 more
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Phase transitions and soft modes in sodium bismuth titanate

Ferroelectrics, 1985
Abstract The results of experimental studies of the crystal and domain structures of NaO, 5BiO, 5TiO3 as well as its lattice dynamics, dielectric, optical and other physical properties are considered. Nature of peculiar temperature points is discussed.
S. B. Vakhrushev, V. A. Isupov, B. E. Kvyatkovsky, N. M. Okuneva, I. P. Pronin, G. A. Smolensky, P. P. Syrnikov   +6 more
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Optical properties of sodium bismuth titanate thin films

Ferroelectrics, 2017
ABSTRACTWe have investigated the optical and microwave dielectric properties of lead-free perovskite ferroelectric Na0.5Bi0.5TiO3 (NBT) thin films deposited on fused silica substrate using pulsed laser deposition at different substrate temperatures.
Andrews Joseph, Sivanagi Reddy Emani, K. C. James Raju   +2 more
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SYNTHESIS AND CHARACTERIZATION OF LANTHANUM DOPED SODIUM BISMUTH TITANATE

Modern Physics Letters B, 2002
Impedance spectroscopic studies on polycrystalline sintered discs of lanthanum doped Na 1/2( La x Bi 1-x)1/2 TiO 3 ceramics with x = 0, 0.1, 0.15 and 0.2, have been carried out in the temperature region ranging from room temperature to 550°C and in the frequency range of 100 Hz to 1 MHz. Impedance data is presented in frequency explicit plots and Cole–
M. APARNA, T. BHIMASANKARAM, G. S. KUMAR, G. PRASAD   +3 more
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Substitutional effect of bismuth ferrite on the electrical properties of sodium bismuth titanate ceramics

Journal of Materials Science: Materials in Electronics, 2015
Lead free sodium bismuth titanate ceramics was substituted with bismuth ferrite in low mole fraction and the influence of substitution on the dielectric constant, Curie temperature, depolarization temperature, remnant polarization, coercive field and piezoelectric coefficient were studied. Rhombohedral R3c symmetry is maintained for all mole fractions.
D. E. Jain Ruth, S. M. Abdul Kader, M. Muneeswaran, N. V. Giridharan, D. Pathinettam Padiyan, B. Sundarakannan   +5 more
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