High-permittivity dielectric ceramics with high endurance

On the formation mechanism of BaTiO3–BaZrO3 solid solution through solid-oxide reaction

“…For example the permittivity and the Curie temperature of BaTiO 3 can be varied in a large range by solid solution formation with SrTiO 3 [1]. Solid solution compositions in BaTiO 3 (BT)-BaZrO 3 (BZ) or BTZ-system have been established as one of the most important compositions for dielectrics in multilayer ceramic capacitors [2]. For composition Ba(Ti 1-x Zr x )O 3 , with x in the range 0.26<x<0.42, the solid solution system showed some interesting relaxor like behaviors in the bulk materials [3][4][5].…”

X-ray powder diffraction structural characterization of Ba1-xEuxTiO3 ternary oxides

“…1. For several decades, researchers have been exploring and developing the more advanced rare-earth-doped BaTiO 3 ceramic materials by chemical modification, for example, dielectric maximum was raised and shifted towards room temperature by partial substitution of La or Ce for A-site Ba ion [1][2]. Rare-earth (RE) ions are trivalent in most of their compounds, so is trivalent Eu 3+ ion (4f 6 ), but Eu element in its compounds may exist in metastable Eu 2+ ions with half-filled 4f shell (4f 7 ), such as EuPd 2 P 2 [3] and intermetallic EuPt 2 [4], or EuPd 2-x Pt x with mixed valence [4].…”

Study on phase formation and sintering kinetics of BaTi0.6Zr0.4O3 powder synthesized through modified chemical route

“…The BT-BZ solid solutions were conventionally synthesized through solid-oxide route [7][8][9]. Chemical solution methods are also used to produce more homogeneous, finer particle size and low impurity level powders than that produced by the solid-oxide method [10][11][12].…”