Magnetoelectric lead-free composite ceramic based on the piezoelecrtic Ba0.85Ca0.15Ti0.9Zr0.1O3 (BCZT) and magnetic NiCo0.02Cu0.02Mn0.1Fe1.8O4−d (NCCMF) has been obtained by solid state method using preliminarily synthesized solid-state precursors. X-ray diffraction measurements, microstructural, magnetic, dielectric, piezoelectric magnetoelectric studies have carried out. Impurity phases were ...

We examine ceramic tape-casting and anode electrolyte co-firing for large-scale manufacturing of protonic fuel cells. confirm the reactivity Ni, a commonly used anode, with BaZr0.8M0.2O3?? (BZM20: M = Sc, In, Lu, Yb, Y or Gd). Addition 0.4 mol% NiO to BZM20 at 1778 K, produces BaM2NiO5 Gd. No reaction occurs Lu Yb. The proton conductivity all BZM20s decreases by approximately 30% because doping...

The photochemical growth of silver nanoparticles on the negative domains of lead zirconate titanate thin films is reported. A sample of highly [100] orientated lead zirconate titanate, with a ratio of 30:70, that was 65-70 nm thick grown on Pt-coated MgO was poled by use of piezoresponse force microscopy to produce defined regions of surface positive and negative polarization. A comparison betw...

Density functional theory calculations are used to investigate the energetics of protons crossing triple phase boundaries based on a metal catalyst, Pd or Ni, and barium zirconate. Our calculations show that the proton transfer reaction at these interfaces is controlled by the terminal layer of the electrolyte in contact with the metallic and gas phases. The hydrogen spilling process onto the e...