CaZrO3 nanoceramics were successfully synthesized at 700 C using the molten salt method, and the effects of processing parameters, such as temperature, holding time, and amount of salt on the crystallization of CaZrO3 were investigated. CaCl2, Na2CO3, and nano-ZrO2 were used as starting materials. On heating, CaCl2–NaCl molten eutectic salt provided a liquid medium for the reaction of CaCO3 an...

Abstract Lead zirconate (PbZrO 3 ) is considered the prototypical antiferroelectric material with an antipolar ground state. Yet, several experimental and theoretical works hint at a partially polar behaviour in this compound, indicating that polarization may not be completely compensated. In work, we propose simple ferrielectric structure for lead zirconate. First-principles calculations revea...

First principles calculations and Monte Carlo simulations reveal the impact of defect interactions on hydration barium-zirconate.

The environmental benefits of fuel cells have been increasingly appreciated in recent years. Among candidate electrolytes for solid-oxide fuel cells, yttrium-doped barium zirconate has garnered attention because of its high proton conductivity, particularly in the intermediate-temperature region targeted for cost-effective solid-oxide fuel cell operation, and its excellent chemical stability. H...

This detailed study compare and contrasts the calcium-magnesium-aluminosilicate (CMAS) infiltration resistance behavior of electron-beam physical vapor deposition (EB-PVD) produced gadolinium zirconate (GZO) yttria rich zirconia (65YZ, 65 wt % Y2O3 rest zirconia) coatings. The kinetics, as well stability protective nature different reaction products, were studied by performing long term tests (...

A polarized ferroelectric material can initiate the micro-electrolysis of water molecules which leads to formation reactive oxygen species (ROS) in an aqueous solution resulting selective bacteria killing. This study presents fabrication, characterization, and antimicrobial performance poled particulate composites. Barium calcium zirconate titanate (BCZT) micro-powder is synthesized by a solid-...

Nonlinear properties of lead zirconate-titanate ~PZT! piezoceramics are investigated using ultrasonic second harmonic generation technique. When a sinusoidal ultrasonic wave of frequency v0 is sent into a nonlinear material, the second harmonic wave with frequency 2v0 is generated. Through measuring the absolute amplitude of the fundamental (v0) and of the second harmonic (2v0) waves, the ultra...

A thin film lead zirconate titanate, Pb(Zr,Ti)O3 (PZT), MEMS power generating device is developed. It is designed to resonate at specific frequencies from an external vibrational energy source, thereby creating electrical energy via the piezoelectric effect. Our cantilever device i t 2 f 1 d r ©

Direct Writing of Lead Zirconate Titanate Piezoelectric Structures by Electrohydrodynamic Atomisation S.A. Rocks, D. Wang, D. Sun, S.N. Jayasinghe, M.J. Edirisinghe, R.A. Dorey. Nanotechnology Centre, Cranfield University, Bedfordshire, UK, Materials Department, Queen Mary, University of London, London, UK, and Mechanical Engineering Department, University College, London, UK. s.rocks@cranfield...