Thermoelectric properties of oxygen-deficient filled strontium barium niobates (SBN, Sr x Ba 6− x Nb 10 O 30−δ) in the composition range from the barium end member to a Sr:Ba ratio of 80:20 were investigated.The electrical conductivity, …
The high-frequency dielectric response of the uniaxial strontium barium niobate crystals with 81% of Sr has been studied from 1 kHz to 30 THz along the polar c axis by means of several techniques ...
Strontium barium niobate-based glass–ceramics (SBN–glass–ceramics) with various B2O3/SiO2 ratios have been prepared by powder-melting method followed by controlled crystallization.
The ability of Strontium Barium Niobate crystal as a two-dimensional nonlinear optical multiple-wavelength-and-direction converter is demonstrated, showing how harmonic generation can be obtained ...
Strontium barium niobate (Ba x Sr 1−x Nb 2 O 6) ceramics, as an essential candidate system for energy storage ceramic capacitors, have received considerable attention because of their extremely high dielectric constant and relatively low dielectric loss [15,16,17]. However, the pure barium strontium niobate (BSN) ceramic exhibits a low dielectric breakdown …
Kinetics of free-surface decomposition of magnesium, strontium and barium carbonates analyzed thermogravimetrically bv the third-law method
In this study, calcium modified strontium barium niobate (CaxSr0.75−xBa0.25Nb2O6, CSBN-x, 0 ≤ x ≤ 0.20) lead-free ferroelectric relaxor ceramics were prepared by conventional solid-state reaction technique and their crystal structure, morphology, dielectric, ferroelectric and energy storage properties were studied comprehensively. The …
Strontium barium niobate is a ferroelectric material commonly used in single crystal form in electro-optics, acousto-optics, and photorefractive non-linear optics for its photorefractive …
The structure of strontium barium niobate crystals Sr x Ba 1 − x Nb 2 O 6 is comprehensively studied in the whole range of the tetragonal tungsten bronze phase (x = 0.32–0.82) using both powder and single-crystal X-ray diffraction measurements. Unit-cell parameters, density, site-occupancy factors and interionic distances show an explicit composition dependence which …
To our knowledge, this is the first report of such high breakdown strengths in a bulk strontium barium niobate based glass-ceramics. These findings indicate that lead-free multi-component strontium barium niobate glass may be strong candidates for use in high energy density storage capacitors for portable or pulsed power applications.
The crystallization kinetics, phase development, and electric properties of Al2O3–SiO2–SrO–BaO–Nb2O5–ZnO glass–ceramics were investigated for potential application of the materials for energy storage. Strontium barium niobate (Ba x Sr1−x Nb2O6) with the tetragonal tungsten-bronze structure was the major crystalline phase formed by both surface …
Crystallization and Properties of Strontium Barium Niobate-Based Glass–Ceramics for Energy-Storage Applications LINJIANG TANG,1 WEI WANG,1 BO SHEN,1 JIWEI ZHAI,1,3 and LING BING KONG2 1.—Functional Materials Research Laboratory, Tongji University, No. …
Strontium barium niobate (SBN) ceramics, synthesized through partial co-precipitation, was sintered at—6, 12 and 24 h, respectively, at 1250, 1300 and 1350 °C. Structural developments, developments in porosity, grain size, residual stress and crystallographic texture and its effect on dielectric constants were studied at different sintering conditions.
Na2O–BaO–SrO–Nb2O5–B2O3–SiO2 glass-ceramics were prepared by melt-casting followed by controlled crystallization. X-ray diffraction results show that Ba0.27Sr0.75Nb2O5.78 with tungsten bronze structure formed as the dielectric phases from the glass matrix at 800°C. However, a secondary phase NaSr1.2Ba0.8Nb5O15 occurs when …
Strontium barium niobate (SBN)-glass ceramic might be a potential candidate material for energy–density applications. SBN-glass ceramic is prepared by melt-casting …
Nominally pure and doped by Ce, Cr, Co, Fe SBN crystals (SBN:61, SBN:75) of different compositions are used in elecro-optics, acousto-optics, photorefractive non-linear optics. A new growing technique (Stepanov Method) provides …
The dielectric properties of strontium-barium niobate crystals with a strontium concentration of 0.75, which corresponds to the most smeared ferroelectric phase transition, were measured. The ...
Barium strontium titanate (BST) glass-ceramics were fabricated via controlled crystallization with different crystallization routes. Effects of the microwave crystallization and microwave treatment on the microstructure and energy storage properties of the glass-ceramics were systematically investigated.
Several oxide materials are being considered as candidates for EO modulators in SiPh, with lithium niobate (LN) being the current industry standard. 6,7 However, among these oxides, LN has a relatively modest …
Strontium barium niobate (SBN)-glass ceramic might be a potential candidate material for energy–density applications. SBN-glass ceramic is prepared by melt-casting method followed by controlled crystallization and is shown to have an energy density value of 4 J/cm 3 . The strontium bariumniobate glass–ceramics with high dielectric constant ...
Strontium barium niobate (SBN) ceramics with BaO-B 2 O 3-SiO 2 (BBS, 0–5 wt%) glass additive were prepared by the solid state reaction method, and the sintering …
Strontium barium niobate-based glass–ceramics (SBN–glass–ceramics) with various B2O3/SiO2 ratios have been prepared by powder-melting method followed by controlled crystallization. The effects of different B2O3/SiO2 ratios on the phase evolution, microstructure, dielectric property, breakdown strength and energy storage density of the …
Strontium barium niobate (Sr x Ba1–x Nb2O6, referred to as SBN) is a material of interest for making efficient optical modulators due to its very high electro‐optic (EO or Pockels) coefficient.
In literature, two compositions of SBN i.e., S r 0.60 B a 0.40 N b 2 O 6 (SBN60) and S r 0.75 B a 0.25 N b 2 O 6 (SBN75) have been effectively used for many optical device applications wherein mostly EO modulators are widely studied [9,[14], [15], [16]]. Ion et al. demonstrated that preferred c-axis growth of SBN thin films are obtained at a higher …
The structure of strontium barium niobate crystals SrxBa1-xNb2O6 is comprehensively studied in the whole range of the tetragonal tungsten bronze phase using both powder and single-crystal X-ray diffraction measurements and proves that the electrostrictive contribution to the thermal expansion plays an important role in strontia barium Niobate. The …
Strontium barium niobate (Sr 1−x Ba x Nb 2 O 6 ) is an important ferroelectric material and has been widely studied because of its extremely high dielectric constant and theoretical BDS [14] [15 ...
The structure of strontium barium niobate crystals Sr x Ba 1 − x Nb 2 O 6 is comprehensively studied in the whole range of the tetragonal tungsten bronze phase (x = 0.32–0.82) using both powder and single-crystal X-ray diffraction measurements. Unit-cell parameters, density, site-occupancy factors and interionic distances show an explicit …
Barium strontium niobate (BSN) ceramics with different amounts of BaO–SrO–Nb2O5–Al2O3–B2O3–SiO2 (BSNABS) glass additive were prepared via the …
Acta Cryst. (2006). B62, 960–965 Sergey Podlozhenov et al. Structure of strontium barium niobate 961 Figure 2 Unit-cell parameters of strontium barium niobate Sr x Ba 1 x Nb 2 O 6 as a function of the strontium content x derived from powder (circles and squares) and single-crystal (filled triangles) X-ray measurements. Lines denote fits to ...
A moderate amount of Sm 2 O 3 addition improves the microstructure of the barium strontium niobate glass ceramics and reduces the interfacial activation energy of the …
Filled strontium barium niobate (SBN, Sr x Ba 6− x Nb 10 O 30−δ) compositions from the barium end-member to a Sr:Ba ratio of 80:20 were fabricated using conventional sintering under oxygen-deficient conditions.Single-phase specimens were obtained when sintered at 1350°C under a reducing condition of about 1.0 × 10 −16 atm pO 2.X-ray …
Barium is black, niobium–dark gray, strontium–gray, oxygen–light gray. Downloaded by [Politechnika Koszalinska], [Bohdan Andriyevsky] at 05:27 22 May 2012 200 B. Andriyevsk y et al.
Abstract A brief analytical review of the literature data on the jump switching processes in classical ferroelectrics and new results of the experimental study of the thermally induced pulsed processes in the strontium barium niobate relaxor ferroelectric crystals are presented. The mechanisms of their occurrence in different temperature ranges are discussed …
Two-step crystallization process was employed to improve microstructure and energy-storage density of the strontium barium niobate-based/titanate-based glass-ceramics. …