Article ID Journal Published Year Pages File Type
9567368 Applied Surface Science 2005 4 Pages PDF
Abstract
The chemical and electrical characteristics of the grain boundary of the polycrystalline semiconducting BaTiO3 ceramics, which were synthesized by hot-press sintering Mn-coated semiconducting BaTiO3 powders, were investigated in terms of process parameters such as the amount of coating materials. Diffusion kinetic parameters of diffusing ions at particular heat-treatment conditions were obtained by fitting experimental data with computer-simulated results as well as electrical features near the grain boundary of the ceramics. Electrical features of semiconducting oxides were calculated from chemical distribution near the grain boundary; these values are similar to those obtained from impedance analysis. It indicated that this synthesis method can be used for fine control of chemical and electrical features near the grain boundary of semiconducting oxides.
Related Topics
Physical Sciences and Engineering Chemistry Physical and Theoretical Chemistry
Authors
, ,