Results 31 to 40 of about 1,062 (206)
Journal of Materiomics, 2022 Giant strains in (Bi0.5Na0.5)TiO3 based ceramics are usually attributed to electric field induced nonpolar to polar phase transition. Whether it is an ergodic relaxor R3c/P4mm ferroelectric (FE) to long-range ordered FE phase transformation or a ...
Yi Zhang +6 more
doaj +1 more source
Electric-Field-Induced Phase Transformation and Frequency-Dependent Behavior of Bismuth Sodium Titanate–Barium Titanate [PDF]
Materials, 2020 The electric field response of the lead-free solid solution (1−x)Bi0.53Na0.47TiO3–xBaTiO3 (BNT–BT) in the higher BT composition range with x = 0.12 was investigated using in situ synchrotron X-ray powder diffraction. An introduced Bi-excess non-stoichiometry caused an extended morphotropic phase boundary, leading to an unexpected fully reversible ...
Kai-Yang Lee +9 more
openaire +6 more sources
Quantum Beam Science, 2023 Bismuth sodium titanate (BNT) thin films were deposited on Pt/SiN substrates by Sol-Gel spin coating technique and annealed under O2 atmosphere. The microstructural, structural, and electrical properties of the obtained film were investigated.
Ilham Hamdi Alaoui +6 more
doaj +1 more source
The complex structural mechanisms behind strain curves in bismuth sodium titanate–barium titanate [PDF]
Applied Physics Letters, 2020 In this work, the lead-free composition (1-x)Bi0.5Na0.5TiO3–xBaTiO3 (BNT–BT) with x = 0.12 was investigated using in situ Synchrotron x-ray powder diffraction. With the applied electric field, the pseudo-cubic relaxor phase reversibly transforms to a ferroelectric state. The reversibility is still preserved after 104 bipolar electric field cycles.
Kai-Yang Lee +8 more
openaire +3 more sources
Structure and dielectric properties in Mg/Nb co-substituted bismuth sodium titanate [PDF]
, 2023 A systematic study of pseudo-isovalent B site co-substitution of Ti4+ by Mg2+ and Nb5+ in bismuth sodium titanate is presented. A complete solid solution in the Bi0.5Na0.5Ti1−x(Mg1/3Nb2/3)xO3 system is formed.
Hangfeng Zhang +5 more
core +1 more source
Sol-Gel Derived Barium Sodium Niobate and Bismuth Titanate Films
, 1991 Sol-gel derived barium sodium niobate and bismuth titanate films were successfully prepared from precursor solutions of chelated Ba[Nb(OEt)6]2 and NaNb(OEt)6 and from bismuth 2-ethyl hexanoate and Ti(OEt)4 respectively.
G. Teowee +3 more
core +1 more source
Journal of Materiomics, 2022 Off-stoichiometry of perovskite structural Bi0.5Na0.5TiO3 (BNT) ferroelectrics can give rise to considerable oxide-ion conductivity. The inherent structural characteristics are urgent to be resolved due to its particular sensitivity of the conduction ...
Jing Shi +8 more
doaj +1 more source
Dielectric relaxation induced by oxygen vacancies in Na_0.5Bi_0.5TiO_3 ceramics
Condensed Matter Physics, 2022 Dielectric permittivity was studied in ceramics of relaxor ferroelectric bismuth-sodium titanate Na_0.5Bi_0.5TiO_3. The measurements were performed on as sintered and heat treated in vacuum samples.
V. M. Sidak +2 more
doaj +1 more source
Impedance spectroscopy of bismuth sodium titanate: Barium titanate ceramics with manganese doping [PDF]
Journal of the American Ceramic Society, 2017 Abstract In this work we use Impedance Spectroscopy ( IS ) to study lead‐free ceramics of perovskite structure (Bi 1/2 Na 1/2 TiO 3 ) 0.
V. Hugo Schmidt +2 more
openaire +1 more source
, 2016 High Ionic Conductivity with Low Degradation in A‑Site Strontium-Doped Nonstoichiometric Sodium Bismuth Titanate ...
Ian M. Reaney (1683007) +4 more
core +1 more source