Processing and Properties of Textured Potassium Strontium Niobate (KSr2Nb5O15) Ceramic Fibers-Effect of Texture on the Electrical Properties

Abstract

Textured ceramic fibers were fabricated from the tungsten-bronze-type piezoelectric KSr2Nb5O15. Development of crystallographic texture was evaluated through rocking curve analysis and a texture with Lotgering factor of 0.97 was achieved. 1-3 piezocomposites were prepared from the textured fibers and their electrical properties were evaluated. Highly enhanced properties that are 2 to 3 times higher than the random case were observed with increasing texture fraction with P-r and d(33) reaching 20 mu C/cm(2) and 75 pC/N, respectively.