Direct measurement of electrocaloric effect in lead-free Ba(SnxTi1-x)O3 ceramics [PDF]
, 2017 In this study, we report on investigation of the electrocaloric (EC) effect in lead-free Ba(SnxTi1-x)O3 (BSnT) ceramics with compositions in the range of 0.08 ≤ x ≤ 0.15 by the direct measurement method using a differential scanning calorimeter.
Dkhil, Brahim +6 more
core +3 more sources
Journal of Advanced Ceramics, 2022 Solid-state cooling technology based on electrocaloric effect (ECE) has been advanced as an alternative to replace the vapour-compression approach to overcome the releasing of the global warming gases.
X. Niu +12 more
semanticscholar +1 more source
Bismuth Sodium Titanate Based Materials for Piezoelectric Actuators [PDF]
, 2015 The ban of lead in many electronic products and the expectation that, sooner or later, this ban will include the currently exempt piezoelectric ceramics based on Lead-Zirconate-Titanate has motivated many research groups to look for lead-free substitutes.
Antonio Feteira +12 more
core +2 more sources
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
core +2 more sources
Ring-Type Rotary Ultrasonic Motor Using Lead-free Ceramics [PDF]
, 2015 Ultrasonic motors provide high torques and quick responses compared to their magnetic counterparts; therefore, they are widely used in small-scale applications such as mobile phones, microrobots, and auto-focusing modules in digital cameras. To determine
Gwon, Jung-Ho +9 more
core +1 more source
BiFeO3-BaTiO3: A new generation of lead-free electroceramics [PDF]
, 2018 Lead-based electroceramics such as Pb(Zr.Ti)O3 (PZT) and its derivatives have excellent piezoelectric, pyroelectric and energy storage properties and can be used in a wide range of applications.
Fan, Zhongming +8 more
core +2 more sources
Molten hydroxide synthesis as an alternative to molten salt sythesis for producing K0.5Na0.5NbO3 lead free ceramics [PDF]
, 2011 Lead-free piezoelectric materials have grown in importance through increased environmental concern and subsequent EU and worldwide legislation, with the aspiration to reduce the use of Pb-based materials in all sectors. Integration of the next generation
Bortolani, Francesca +3 more
core +1 more source
Temperature Stable and Fatigue Resistant lead-free ceramics for actuators [PDF]
, 2016 Lead-free ceramics with the composition 0.91K1/2Bi1/2TiO3–0.09(0.82BiFeO3-0.15NdFeO3-0.03Nd2/3TiO3) were prepared using a conventional solid state, mixed oxide route. The ceramics exhibited a high strain of 0.16% at 6 kV mm1, stable from room temperature
Acosta M. +9 more
core +1 more source
Effect of lanthanide doping on structural, microstructural and functional properties of K0.5Na0.5NbO3 lead-free piezoceramics [PDF]
, 2016 Lanthanides-doped K0.5Na0.5NbO3(KNN) lead-free piezoelectric ceramics are prepared by conventional solid-state reaction. The effects of lanthanum concentration and the lanthanide type on the structure, microstructure and ferro-piezoelectric properties ...
Cerdeiras Montero, Elena +6 more
core +2 more sources
Enhanced bipolar fatigue resistance in CaZrO3-modified (K,Na) NbO3 lead-free piezoceramics [PDF]
, 2014 The bipolar fatigue behavior of (K,Na) NbO3 (KNN)-based lead-free piezoceramics was investigated. A comparative analysis demonstrated that CaZrO3-modified KNN ceramics exhibited highly enhanced bipolar fatigue resistance due to the reduced lattice ...
Jo, Wook +5 more
core +1 more source