Gas sensing properties of asymmetrically reduced Na1/2Bi1/2TiO3–based ceramics
Sign Up to like & getrecommendations! Published in 2021 at "Ceramics International"
DOI: 10.1016/j.ceramint.2021.09.133
Abstract: Abstract We report the gas sensing properties of a type of new materials, Na1/2Bi1/2TiO3 (NBT)-based ceramics. After the NBT-based ceramics were asymmetrically reduced and coated with Au electrodes, the materials exhibit relatively large electrical responses… read more here.
Keywords: gas; based ceramics; na1 2bi1; 2bi1 2tio3 ... See more keywords
Surface electronic structure, thermodynamic stability of Na1/2Bi1/2TiO3 (001) surfaces and their relevance to A-site cation ordering in bulk phases: A first-principles study
Sign Up to like & getrecommendations! Published in 2020 at "Solid State Sciences"
DOI: 10.1016/j.solidstatesciences.2020.106161
Abstract: Abstract Surface electronic structure and energetics of (001) surfaces of relaxor ferroelectric Na1/2Bi1/2TiO3 (NBT) are explored theoretically within the framework of ab-initio density functional theory. In particular, polar and nonpolar surfaces of tetragonal NBT with… read more here.
Keywords: tio2; surface; bulk; na1 2bi1 ... See more keywords
Na1/2Bi1/2VO3 and K1/2Bi1/2VO3: New Lead-Free Tetragonal Perovskites with Moderate c/a Ratios
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DOI: 10.1021/acs.chemmater.8b02379
Abstract: New lead-free tetragonal perovskites Na1/2Bi1/2VO3 and K1/2Bi1/2VO3 were synthesized under high pressure (6 GPa) and high temperature (1473 K), based on the design of materials optimizing the lone pair effect of the A-site ion and… read more here.
Keywords: tetragonal perovskites; lead free; free tetragonal; new lead ... See more keywords
Nanoscale insight into the giant piezoelectric response in lead-free Fe-doped 0.95(Na1/2Bi1/2)TiO3-0.05BaTiO3 single crystal
Sign Up to like & getrecommendations! Published in 2017 at "Applied Physics Letters"
DOI: 10.1063/1.4998501
Abstract: The Fe-doped lead-free 0.95(Na1/2Bi1/2)TiO3-0.05BaTiO3 single crystal, reported in the previous work, which exhibited giant piezoelectric strain response (normalized strain constant up to ∼1300 pm/V) and a large quasi-static piezoelectric constant d33 of ∼600 pC/N, was investigated… read more here.
Keywords: lead free; response; microscopy; tio3 05batio3 ... See more keywords
Anomalous behaviors of elastic constants of lead-free piezoelectric (Na1/2Bi1/2)TiO3-5%BaTiO3 single crystals studied by Brillouin spectroscopy
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Applied Physics"
DOI: 10.1063/1.5123748
Abstract: The acoustic properties of unpoled (Na1/2Bi1/2)TiO3-5%BaTiO3 (NBT-5%BT) lead-free single crystals were investigated over a wide temperature range from 740 °C to room temperature. Temperature dependences of sound velocities, acoustic attenuation coefficients, and independent elastic constants were… read more here.
Keywords: temperature; elastic constants; na1 2bi1; spectroscopy ... See more keywords
Oxygen octahedral tilt ordering in (Na1/2Bi1/2)TiO3 ferroelectric thin films
Sign Up to like & getrecommendations! Published in 2020 at "Applied Physics Letters"
DOI: 10.1063/1.5127212
Abstract: Oxygen octahedra tilt (OOT) transition is the most common type of distortion in inorganic ABO3 compounds with a perovskite crystal structure. The importance of OOT transitions is underlined by accompanying changes in the B-O and… read more here.
Keywords: octahedral tilt; tilt; na1 2bi1; tilt ordering ... See more keywords
Thermal stability of the electromechanical properties in acceptor-doped and composite-hardened (Na1/2Bi1/2)TiO3–BaTiO3 ferroelectrics
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Applied Physics"
DOI: 10.1063/5.0052293
Abstract: Lead-free relaxor ferroelectrics are promising candidates for next-generation piezoelectric high-power devices, such as ultrasonic motors, transformers, and therapeutic ultrasonics. These applications require hard ferroelectrics with a broad operating temperature range. Recently, acceptor Zn2+ doping and… read more here.
Keywords: temperature; electromechanical properties; na1 2bi1; batio3 ... See more keywords
Effect of Composition on the Growth of Single Crystals of (1−x)(Na1/2Bi1/2)TiO3-xSrTiO3 by Solid State Crystal Growth
Sign Up to like & getrecommendations! Published in 2019 at "Materials"
DOI: 10.3390/ma12152357
Abstract: The (1−x)(Na1/2Bi1/2)TiO3-xSrTiO3 (NBT-100xST) system is a possible lead-free candidate for actuator applications because of its excellent strain vs. electric field behaviour. Use of single crystals instead of polycrystalline ceramics may lead to further improvement in… read more here.
Keywords: crystal growth; single crystal; single crystals; na1 2bi1 ... See more keywords