Texture development in barium titanate and PMN-PT using hexabarium 17-titanate heterotemplates

Bulk BaTiO3 ceramics with < 111 >-texture have been prepared by the modified ternplated grain growth method, using platelike Ba6Ti17O40 particles as templates, and the mechanism of texture development is examined. The Ba6Ti17O40 Particles induce the abnormal growth of BaTiO3 grains, and a structure similarity between {001} of Ba6Ti17O40 and {111} of BaTiO3 lives < 111 >-texture to abnormally grown BaTiO3 grains. Thus, the < 111 >-texture develops in the BaTiO3 matrix. The use of platelike Ba6Ti17O40 particles has been extended to a 0.65Pb(Mg1/3Nb2/3)O-3-0.35PbTiO(3) matrix, but the matrix phase is decomposed by extensive chemical reactions between the matrix and template phases.