Premium
Effect of Manganese Oxide Additive on the Dielectric Properties of Mixed‐Sintering Ceramics
Author(s) -
Takahara Hideyuki
Publication year - 1989
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1989.tb07700.x
Subject(s) - sintering , materials science , ceramic , pellets , dielectric , mixed oxide , manganese , ceramic capacitor , electrode , composite material , oxide , grain boundary , grain size , metallurgy , capacitor , microstructure , chemistry , voltage , optoelectronics , physics , quantum mechanics
The influence of internal electrode material on the sintering of mixed‐sintering ceramics and the effect of MnO 2 additive on improving their dielectric properties were investigated for their application as multilayer ceramic capacitors. The resistivities of mixed‐sintering ceramic pellets sintered with Ag‐Pd electrode material decreased remarkably because of the expulsion of component elements during sintering. A small amount of MnO 2 additive improved the resistivities. Extended X‐ray absorption fine‐structure analysis showed that MnO 2 exists in the grain boundaries and compensates for the electrical valence of the expelled elements.