Title :
Super low temperature sintering of semiconducting BaTiO3 based PTCR ceramics
Author :
Zhou, ZAhi-Gang ; Tang, Xiao-Feng ; Tang, Zi-Long
Author_Institution :
Dept. of Mater. Sci. & Eng., Tsinghua Univ., Beijing, China
Abstract :
Super low temperature sintering with liquid phase of semiconducting BaTiO3 PTCR ceramics was discussed Samples were sintered at various temperatures from 800∼1300 °C × 0.5∼2hr with varied sintering aids. Experiment shows the La-doped BaTiO3 with sintering aid BN can be sintered as low as temperature of 1000 °C × 0.5∼2hr. Sintering chemistry and physics, particularly in terms of the defect chemistry with sintering aid BN were described.
Keywords :
barium compounds; ceramics; lanthanum; semiconductor materials; semiconductor technology; sintering; thermistors; 0.5 to 2 hr; 1000 degC; 800 to 1300 degC; BN; BN sintering aid; BaTiO3:La; La-doped BaTiO3; defect chemistry; liquid phase; semiconducting BaTiO3 based PTCR ceramics; sintering nonstoichiometry; super low temperature sintering; Barium; Ceramics; Chemistry; Cooling; Costs; Electrons; Physics; Powders; Semiconductivity; Temperature sensors;
Conference_Titel :
Sensors, 2002. Proceedings of IEEE
Print_ISBN :
0-7803-7454-1
DOI :
10.1109/ICSENS.2002.1037290
