Results 31 to 40 of about 27,906 (302)
Nonlinear dynamics of polar regions in paraelectric phase of (Ba1-x,Srx)TiO3 ceramics [PDF]
, 2017 The dynamic dielectric nonlinearity of barium strontium titanate (Ba1-x,Srx)TiO3 ceramics is investigated in their paraelectric phase. With the goal to contribute to the identification of the mechanisms that govern the dielectric nonlinearity in this ...
Damjanovic, Dragan, Hashemizadeh, Sina
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Eu-doped K0.5Na0.5NbO3-(Ba,Sr)TiO3: A novel lead-free luminescent ferroelectric transparent ceramic with reversible photochromism [PDF]
Journal of Advanced Dielectrics, 2019 Photochromic (PC) luminescent ferroelectric materials have aroused great interest because of their potential applications in optical information memories, optical switches and bio-imaging. However, those materials are basically opaque.
Jinfeng Lin +4 more
doaj +1 more source
Anomalous change in leakage and displacement currents after electrical poling on lead-free ferroelectric ceramics [PDF]
, 2015 We report the polarization, displacement current and leakage current behavior of a trivalent nonpolar cation Al cation substituted lead free ferroelectric NBT-BT electroceramics with tetragonal phase and P4mm space group symmetry.
Ashok Kumar +7 more
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Ordered coalescence of nano-crystals in alkaline niobate ceramics with high remanent polarization
Journal of Materiomics, 2017 Lead-free alkali niobates Na0.5K0.5NbO3 (NKN) ceramics, with significantly enhanced ferroelectric remanent polarization (Pr), were prepared using Spark Plasma Sintering (SPS).
Zhijian Shen +5 more
doaj +1 more source
Frontiers in Materials, 2020 Ferroelectric KNbO3 (KN) ceramics were first fabricated in the 1950s, however, their use in commercial technical applications has been hampered by inherently challenging processing difficulties. In the early 1990s, the interest in KN ceramics was revived
Dawei Wang +5 more
doaj +1 more source
, 2009 Migration of charged point defects triggered by the local random depolarization field is shown to plausibly explain aging of poled ferroelectric ceramics providing reasonable time and acceptor concentration dependences of the emerging internal bias field.
D. M. Smyth +14 more
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Controlling internal barrier in low loss BaTiO3 supercapacitors [PDF]
, 2009 Supercapacitor behavior has been reported in a number of oxides including reduced BaTiO3 ferroelectric ceramics. These so-called giant properties are however not easily controlled. We show here that the continuous coating of individual BaTiO3 grains by a
C. Elissalde +6 more
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Journal of Asian Ceramic Societies, 2018 Non-stoichiometric (Pb0.97La0.02)(Zr0.95Ti0.05)1+yO3 (y = −0.03, −0.01, 0.01 and 0.03) antiferroelectric ceramics were successfully prepared via a solid-state reaction route.
Zhong-Hua Niu +4 more
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The electric field-induced antiferroelectric to ferroelectric phase transition in some (Pb,La)Zr0.55Ti0.45O3 ceramics [PDF]
, 1976 Lanthanum substituted lead zirconate-titanate (PLZT) ceramics of composition 11.1/55/45 have been studied by measuring high electric field properties. Dc bias, dielectric and P-E hysteresis loop measurements have been employed to construct an E (electric
Burggraaf, A.J. +2 more
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Hot-pressed transparent PLZT ceramics from low cost chemical processing
Materials Research, 2001 Lanthanum-modified lead zirconate titanate (PLZT) ceramics were obtained with high transmittance in the visible range by a combination of an inexpensive chemical processing and hot pressing.
I.A. Santos +5 more
doaj +1 more source