SYNTHESIS AND PIEZOELECTRIC PROPERTIES OF (Ba1-xCax)(Ti1-yZry)O3 BY A NOVEL COMPOSITE-HYDROXIDE-MEDIATED APPROACH

Abstract

High purity ( Ba 1-x Ca x)( Ti 1-y Zr y) O 3((x,y)=(0.00,0.00)–(0.50,0.50)) were synthesized by a composite-hydroxide-mediated approach at 200°C using a sealed tube with a rolling system. The powders with an average size of 50 nm in diameter and narrow size distribution were produced. The highest electromechanical coupling factor k r was 36.1% ((x,y) = (0.05,0.03)) and highest mechanical quality factor Q m was 256 ((x,y) = (0.11,0.13)).