Preparation of Alkali Niobate-BariumTitanate System Ceramics and Their Dielectric Properties

Abstract

Various alkali niobate and barium titanate (BT) system ceramics were prepared using conventional sintering method, and their dielectric properties were measured. In this study, as alkali niobate, potassium niobate (KN), sodium niobate (NN), potassium sodium niobate (KNN) and lithium niobate (LN) were used. As the results, KN-BT and KNN-BT system ceramics showed almost flat temperate dependence of dielectric constants from 20 to 400 ˚C.