A5077421254- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- Microwave Dielectric Ceramics Synthesis
- Acoustic Wave Resonator Technologies
- Magnetic and transport properties of perovskites and related materials
- Electronic and Structural Properties of Oxides
- Advanced Condensed Matter Physics
- Dielectric materials and actuators
- Dielectric properties of ceramics
- Magnetic properties of thin films
- Pharmacological Effects of Natural Compounds
- Heusler alloys: electronic and magnetic properties
- Nanoparticle-Based Drug Delivery
- Electrical and Thermal Properties of Materials
- Advanced Fiber Optic Sensors
- Nuclear materials and radiation effects
- Plasma Diagnostics and Applications
- Thermal Expansion and Ionic Conductivity
- Medicinal Plants and Neuroprotection
- Geophysical and Geoelectrical Methods
- Neural Networks and Applications
- Pain Mechanisms and Treatments
- X-ray Diffraction in Crystallography
- Nigella sativa pharmacological applications
- Magnetic Properties and Synthesis of Ferrites
University of Science and Technology Bannu
2013-2024
University of Peshawar
2019-2024
University of Ulsan
2009-2019
COMSATS University Islamabad
2019
Korea Basic Science Institute
2018
Ulsan National Institute of Science and Technology
2018
Islamia College University
2018
University of Science and Technology
2012
Northern Illinois University
2006-2008
We have fabricated K0.5Na0.5NbO3 (KNN) thin films on Pt substrates by a chemical solution deposition method and investigated the effect of K Na excess (0–30 mol%) ferroelectric piezoelectric properties KNN film. It was found that with increasing in precursor from 0 to 30 mol%, leakage current were strongly affected. film synthesized using 20 mol% exhibited low density well saturated P–E hysteresis loops. Moreover, optimized had good fatigue resistance constant 40 pm V−1, which is comparable...
Lead‐free piezoelectric (1– x )( Bi 0.5 (Na 0.75 K 0.25 ) TiO 3 )‐ BiAlO ( BNKT25 ‐ BA, = 0–0.100) ceramics were synthesized using a conventional solid‐state reaction method. The effect of BA addition into the was investigated by X‐ray diffraction, dielectric and ferroelectric characterizations, electric field‐induced strain. diffraction revealed phase transition from tetragonal to pseudocubic at 0.050. As content increased, maximum constant as well depolarization temperature T d decreased....
In this letter, the composition and electric field dependent strain behavior of (1 − x)Bi0.5(Na0.78K0.22)0.5TiO3-xBi(Mg0.5Ti0.5)O3 (BNKT-BMT) were investigated to develop lead-free piezoelectric materials with a large response at low driving for actuator applications. A 0.35% (Smax/Emax = 636 pm/V) an applied 55 kV/cm was obtained 4 mol. % BMT. particular, required deliver strains reduced level that revealed not only Smax/Emax 542 pm/V as 35 kV/cm, but also remarkably suppressed hysteresis.
Piezoceramics 0.99[( Bi 0.5 Na 0.4 K 0.1 ) 1− x La TiO 3 ]−0.01[ Ba 0.7 Sr 0.3 ] ( BNKT – BST , = 0–0.030) were synthesized using a conventional solid‐state reaction method. X‐ray diffraction revealed phase transition from tetragonal to cubic at ≥ 0.005. The maximum dielectric constant as well the depolarization temperature T d decreased with increasing content. addition interrupted polarization and strain hysteresis loops demonstrates that ferroelectric order of BNKT–BST ceramics lead...
In this study, a ternary solid solution (0.935 −<italic>x</italic>)BNT–0.065BT–<italic>x</italic>Bi(Mn<sub>0.5</sub>Ti<sub>0.5</sub>)O<sub>3</sub>(BNT–BT–BMnT;<italic>x</italic>= 0–0.030) was designed and fabricated by means of conventional fabrication process.
Lead-free piezoelectric Bi 0.5 (Na 0.78 K 0.22 ) (Ti 1- x Hf )O 3 ceramics (abbreviated as BNKTH-100 , =0–0.05) were prepared by the conventional solid-state reaction method. The effects of substitution on crystal structure and electromechanical properties investigated. X-ray diffraction patterns revealed a single-phase perovskite with no evidence secondary phases. temperature-dependent dielectric curves found to broaden increasing concentration. electric-field-induced strain increased up...
Abstract A simple oxidation synthesis route was developed for producing magnetite nanoparticles with controlled size and morphology. Investigation of process the produced (NP) performed after under different temperatures. The phase transformation synthetic into maghemite and, henceforth, to hematite at temperatures dry has been studied. natural particles were directly transformed comparatively lower temperature, thus, bypassed. structures, morphologies particle sizes magnetic have...
The advancement of high-strain piezoelectric materials has presented a longstanding challenge, particularly in the development polycrystalline lead-free thin films. In this work, we present strategy for customizing electrostrain films through phase transition engineering. Herein, achieved high recoverable Bi<sub>1/2</sub>Na<sub>1/2</sub>TiO<sub>3</sub>-BiAlO<sub>3</sub> (BNT-BA) film. To accomplish this, ferroelectric BNT and BNT-BA with identical thicknesses 500 nm were fabricated on...
A thermotropic phase boundary between non-ergodic and ergodic relaxor phases is tuned in lead-free Bi1/2Na1/2TiO3-based ceramics through a structural transition driven by compositional modification (usually named as “morphotropic approach”). The substitution of Bi(Ni1/2Ti1/2)O3 for Bi1/2(Na0.78K0.22)1/2TiO3 induces from tetragonal to “metrically” cubic thereby, the ferroelectric becomes predominant at room temperature. shift temperature (denoted TF-R) non-ergodic-to-ergodic corroborated via...
Nowadays, increasing concentration of CO2 in the atmosphere is a major threat for environment and main reason global warming. Variation gas temperature dissociation into its by-products (CO O) home-made dielectric barrier discharge (DBD) reactor have been reported as function parameters, i.e., applied voltage flow rate. To estimate fraction DBD reactor, optical emission actinometry technique employed which 5% N2 used an actinometer. Emission lines Angstrom band CO at 451.09 nm (B1∑...
We investigated the high dielectric constant and energy storage density for blends of P(VDF‐TrFE) copolymer P(VDF‐TrFE‐CFE) terpolymer. The degradation coercive field ( E c ) remnant polarization P r under an electric 125 MV/m was observed changed into a typical relaxor ferroelectric with doping found to be ∼11, but enhanced ∼55 by blending at 60 wt%. Consequently, higher about 4.2 J/cm 3 obtained in these contrast 3.6 terpolymer very low applied MV/m. These results demonstrate promise blend...
Abstract Lead-free piezoelectric (1-x)(Bi0.5Na0.5)TiO3–xBiAlO3 (BNT-BA, x = 0.00, 0.025, 0.050, 0.075, 0.100) ceramics were synthesized by a conventional solid- state reaction method. The BNT-BA exhibited enhanced ferroelectric and properties at 0.050. x-ray diffraction analysis revealed pure perovskite phase for ≤ 0.075. A rhombohedral to pseudocubic transition was observed 0.075 maximum values the electric field-induced strain (S 0.13%) dynamic coefficient (d*33 163 pm/V) obtained this...