Preparation of Pb(Mg1/3Nb2/3)TiO3–PbTiO3 thick films with highly preferred orientation via screen printing

Abstract Rhombohedral 0.75Pb(Mg 1/3 Nb 2/3 )TiO 3 –0.25PbTiO 3 (PMN-25PT) and tetragonal 0.65Pb(Mg 1/3 Nb 2/3 )TiO 3 –0.35PbTiO 3 (PMN-35PT) thick films with a highly preferred orientation were prepared via screen printing on MgO and YSZ ceramic substrates. The use of oriented BaTiO 3 thick films as template layers was effective in forming the oriented PMN-25PT and PMN-35PT thick films. The orientation degrees of both thick films were over 0.85. The formation process of the thick films was examined using electron backscatter diffraction. PMN-25PT grains grew on the BaTiO 3 template layers and aligned with the BaTiO 3 orientation direction. Finally, the PMN-25PT and PMN-35PT thick films prepared on MgO had better electrical properties than the thick films fabricated on YSZ.