Liquid Phase Sintering of Grain-Oriented Ferroelectric Ceramics in the Bismuth Layer Structure Oxides

1 January 1981

journal article
Published by IOP Publishing in Japanese Journal of Applied Physics

Vol. 20 (S4)
https://doi.org/10.7567/jjaps.20s4.189

Abstract

The influence of a low melting second phase added to the grain-oriented ferroelectric ceramics with bismuth layer structure on their densification, forging behavior, grain orientation and electrical properties is investigated by using the hot-forging method combined with liquid phase sintering. PbBi₂Nb₂O₉ and Bi₄Ti₃O₁₂ as host materials; Pb₅Ge₃O₁₁, PbO and Bi₂O₃ as liquid phase agents are selected. The presence of liquid phase produces a good effect on hot-forging in PbBi₂Nb₂O₉+Pb₅Ge₃O₁₁ system. The PbO content ranging from 1 to 3 wt% in PbBi₂Nb₂O₉+PbO system is most effective, and k ₃₃ of 15.4% is obtained. On the other hand, liquid phases in Bi₄Ti₃O₁₂ ceramics have little effect on their densification and forging behavior.

Keywords

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