Densification, microstructural evolution, and dielectric properties of hexagonal Ba(Ti1−xMnx)O3 ceramics sintered with fluxes

Microwave-hydrothermal synthesis of barium strontium titanate nanoparticles

“…Barium titanate has been extensively employed in several industrial applications, including dynamic random access memory (DRAM) capacitor, microwave filters, infrared detectors and dielectric phase shifters, due to their excellent ferroelectric, dielectric, piezoelectric and pyroelectric properties [1][2][3][4][5][6][7][8]. For the ABO 3 perovskite, different A-site and B-site dopants (where A = Ca, Sr, La; B = Nb, Ta, Zr) are used to modify the electrical properties of BaTiO 3 based compositions [6][7][8][9].…”

Structural and magnetic properties of self-doped perovskite manganites La0.8-xSr0.2MnO3−δ

“…[1][2][3][4][5][6][7] It has been thought that the spin structure and electronic transport properties of Ln 1Àx M x MnO 3 are correlated via the double exchange (DE) mechanism, 8 the hopping of e g electrons between Mn 3þ and Mn 4þ ions mediated by oxygen anions. However, there are some basic physical problems related to the perovskite structure that should be investigated further.…”

Phase formation and properties of the BaO–B2O3–SiO2 and –Al2O3 ceramics prepared via an aqueous suspension route

“…The eutectic compositions with melting temperature below 1000 o C can supply sufficient amounts of liquid phase to achieve the densification sintering of the low-temperature sintering ceramics. On the basis of the liquid-phase sintering, the mineral phases, e.g., willemite (Zn 2 SiO 4 ), wollastonite (CaSiO 3 ) and barium silicate (BaSiO 3 ), with particular dielectric and thermal properties [6][7][8] can be availably fabricated. Also, dielectric and thermal properties of the low-temperature ceramics can be tailored in terms of the mineral phase composition.…”