| 摘要 |
To provide a grain oriented ceramic capable of exerting excellent piezoelectric properties, a production method thereof, and a piezoelectric material, a dielectric material, a thermoelectric conversion element and an ion conducting element each using the grain oriented ceramic, there is provided a grain oriented ceramic comprising, as the main phase, an isotropic perovskite-type compound which is represented by formula (1): {Li<SUB>x</SUB>(K<SUB>1-y</SUB>Na<SUB>y</SUB>)<SUB>1-x</SUB>}(Nb<SUB>1-z-w</SUB>Ta<SUB>z</SUB>Sb<SUB>w</SUB>)O<SUB>3 </SUB>in which x, y, z and w are in respective composition ranges of 0<=x<=0.2, 0<=y<=1, 0<=z<=0.4, 0<=w<=0.2 and x+z+w>0. The main phase comprises a polycrystalline body containing from 0.0001 to 0.15 mol of any one or more additional element selected from metal elements, semimetal elements, transition metal elements, noble metal elements and alkaline earth metal elements belonging to Groups 2 to 15 of the Periodic Table, per mol of the compound represented by formula (1). A specific crystal plane of each crystal grain constituting said polycrystalline body is oriented.
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