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Showing 1 to 20 of 52 for “"batio3"”.
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Nanostructured BaTiO3 Thin Films for Enhanced Photoresponse
… nanostructure engineering strategies using BaTiO3 (BTO) as a representative perovskite ferroelectric. The main achievements and outcomes are highlighted below. A record high photovoltage was achieved in a thin BTO film. Highly preferred-oriented BTO films were successfully grown on silicon …
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Dielektriniai ir pjezoelektriniai batio3-pbzn1/3nb2/3o3 keramikų tyrimai /
… titanate doped with lead zinc niobate ((1–x)BaTiO3-xPbZn1/3Nb2/3O3). During the study dielectric and piezoelectric properties of four different concentrations x will be analyzed: x = 0, 0.05, 0.125, 0.15. Ceramics were investigated in the 20 Hz – 300 MHz frequency range and 120 K – 500 K …
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Magnetoelectric Coupling in BaTiO3-BiFeO3 Multilayers: Growth Optimization and Characterization
… in multiferroic thin film multilayers of BaTiO3 (BTO) and BiFeO3 (BFO). Multiferroics possess more than one ferroic order parameter, in this case ferroelectricity and anti-ferromagnetism. Cross-coupling between these otherwise separate order parameters promises great advantages in the …
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Electrochemical Study of Ceramic (BaTiO3 based)/ Polymer Composite electrodes for Supercapacitor applications
… explores supercapacitive properties of the BaTiO3 system as it already is a good dielectric material. Being a non – conductive system, calcination treatments were done on Nd doped BaTiO3 to make it conductive enough to be a supercapacitive electrode. The effect of calcination and graphite …
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Fabrication And Damping Behavior Of Particulate BaTiO3 Ceramic Reinforced Copper Matrix Composites
… was reinforced with tetragonal ferroelectric BaTiO3 particulates (Cu-BaTiO3 composites) using powder metallurgy techniques. The effect of particulate size and three processing conditions, sintering atmosphere, cooling rate and, uniaxial compaction pressure on the tetragonality and hence the …
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ASSESSMENT OF ANTIBACTERIAL EFFECT AND FLOWABILITY OF BIOCERAMIC SEALER MODIFIED WITH BaTiO3 NANOPARTICLES
… materials, including barium titanate (BaTiO3), offer antibacterial effects. The aim of this project is to develop an endodontic sealer embedded with piezoelectric fillers for the prevention of root canal infections. Materials and methods: BaTiO3 particles were mixed with EndoSequence …
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Wässriges Foliengießen von BaTiO3 : Untersuchungen zur Entwicklung von Schlickerzusammensetzungen mit optimierten rheologischen Eigenschaften
… Als keramisches Pulver wurde Bariumtitanat (BaTiO3) ausgewählt, da es eine Basiskomponente für die Herstellung keramischer Vielschichtkondensatoren, einem wichtigen Einsatzgebiet des Foliengießprozesses, darstellt. Grundlegende Untersuchungen haben gezeigt, dass sich die BaTiO3-Partikel in …
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Effect of interface structure on film polarization and surface chemistry in ultra-thin TiO2/BaTiO3 Heterostructures
… the surface reactivity. The polarization of the BaTiO3 is expected to affect the surface chemistry TiO2 thin film and adsorption energy of water molecules on the surface. However, thin-film perovskites such as BaTiO3 are subject to depolarization fields, and do not display ferroelectricity as in …
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The Effects of Strain and Vacancies on the Electric and Vibrational Properties of Ferroelectric BaTiO3 from First-principles
… behaviors of polarization in rhombohedral (R3m) BaTiO3 (BTO) that do not conform with intuition, or the current state of known behavior of epitaxially strained BTO. These studies reveal a polarization that increases with tensile strain, instead of compressive strain, and a polarization that is …
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Investigating Ferroelastic and Piezoelectric Vibration Damping Behavior in Nickel-Barium Titanate and Nickel-PZT Composites
… piezoelectric ceramics such as barium titanate (BaTiO3) and lead zirconate titanate (PZT) is due to the anelastic response of ferroelastic domain walls to applied external stress. In piezoelectric ceramics, vibration energy can also be dissipated through the direct piezoelectric effect if the …
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BiMnO3 turinčių kietųjų tirpalų sintezė ir tyrimas /
… method was applied for preparation of (1-x)BaTiO3-xBiMnO3 and (1-x)SrTiO3-xBiMnO3 solid solutions. Cubic structure was observed for all samples. Increase in BiMnO3 amount did not cause any visible changes in perovskite structure. Maximal amount of BiMnO3 in (1-x)BaTiO3-xBiMnO3 solid …
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Electrical transport and superconductivity in doped quantum critical ferroelectrics
… at ambient pressure and doped ferroelectric BaTiO3, which may be tuned to its quantum phase transition with hydrostatic pressure. In the project of carrier-doped SrTiO3, we observed unconventional resistivity varying as the square of the temperature at ambient pressure, which is not thought …
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Ferroelectric Barium Titanate Nanowires: Synthesis, Properties, and Device Applications
… device was fabricated using an individual BaTiO3 nanowire. In this device, due to the piezoelectric effect, voltage response was generated from the BaTiO3 nanowire by a periodically varying tensile mechanical strain applied with a precision mechanical testing stage. The measured voltage …
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Synthesis and Characterization of Ferroelectric Nanomaterials
In this dissertation, BaTiO3 nanocrystals, Bi4Ti3O12 nanostructured microspheres, and cosubstituted Bi4Ti3O12 nanoparticles and ceramics were prepared using solvothermal, hydrothermal and citrate-gel methods. The ferroelectric properties of the prepared cosubstituted Bi4Ti3O12 ceramics were studied …
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Generic Influences of Charged Defects on the Structure-Property Relationships of Modified Ferroelectric Barium Titanate and Antiferroelectric Sodium Niobate
… polar nanodomains in the modified ferroelectric BaTiO3. The influence of charged defects on field-induced AFE-FE transition was discussed in terms of elastic strain effects.
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Determination of local crystal symmetry in complex, multielement, ferroelectric perovskites and alloys
… demonstrated here include: ferroelectric BaTiO3 single crystal, relaxor-ferroelectric (1-x)Pb(Zn1/3Nb2/3)O3-xPbTiO3 (x=0.08) single crystal, and multi-principal-element alloy Al0.1CrFeCoNi. First, we show the local crystal symmetry and polarization fluctuations in BaTiO3 single crystals as …
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Synthesis and Characterization of Polymer Composite Materials For Lithium Battery Cathodes and Capacitors
… novel mixed metal phosphonates. We investigated BaTiO3 materials, covalently surface-modified BaTiO3, and novel mixed metal phosphonates, ATi(O3PC6H5)3 (A = Ba, Sr) to assess the effect of particle size and surface treatment on the composites' effective dielectric permittivity. In all cases, …
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Transformation induced plasticity in ceramics
… to the tetragonal ( ferroelectric) phase in BaTiO3 was determined. The K1C fracture toughness, as measured by the hardness indentation technique, exhibits a maximum within a temperature range approximately 50°C above the stress-free transformation temperature. Unlike the martensitic …
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Damping Behavior in Ferroelectric Reinforced Metal Matrix Composites
… created by the addition of barium titanate (BaTiO3) discontinuous reinforcement in a bearing bronze (Cu-10w%Sn) matrix has been studied. It has been shown that even when combined with other traditional composite mechanisms, added damping ability has been achieved due to the ferroelectric …
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