Preparation and PTCR Characteristics of Semiconductive Nano(Ba1-xSbx)TiO3 Ceramic PowderS by Hydrothermal Process
Year: 2002
Type: article
Abstract: Semiconductive nano $(Ba_{1-x}Sb_x)TiO_3$ powders were synthesized by the hydrothermal process and Sb was simultaneously doped in the hydrothermal condition. $(Ba_{1-x}Sb_x)TiO_3$ powders obtained from optimum condition(at 20 $0^{\circ}C$ for 3hr) exhibited spherical shape, high purity and nano size. The PTCR characteristics was observed when 0.1 and 0.2 mole% Sb were added and sintered at over 130 $0^{\circ}C$ for 1 hour, respectively. And The ceramics exhibit the PTCR characteristics with a resistively jump $ratio( $\rho$ _{max}/ $\rho$ _{min})$ of about $10^4$ . Also we found that PTCR characteristics were dependent on the microstructure.
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2049345249