Piezoelectric properties of zirconium-doped barium titanate single crystals grown by templated grain growth

被引:175
作者
Rehrig, PW [1 ]
Park, SE [1 ]
Trolier-McKinstry, S [1 ]
Messing, GL [1 ]
Jones, B [1 ]
Shrout, TR [1 ]
机构
[1] Penn State Univ, Mat Res Lab, University Pk, PA 16802 USA
关键词
D O I
10.1063/1.370943
中图分类号
O59 [应用物理学];
学科分类号
摘要
Single crystals of Ba(ZrxTi1-x)O-3 were grown by templated grain growth (TGG). Millimeter size single crystals of Ba(ZrxTi1-x)O-3 were produced by heating a BaTiO3 crystal in contact with a sintered polycrystalline matrix of 4.5, 5.0, or 8.5 mol % Zr-doped barium titanate for 30 h at 1350 degrees C. To facilitate boundary migration, the ceramic compact was made 3 mol % TiO2 excess. The 4.5 and 5.0 mol % Zr-doped crystals were orthorhombic at room temperature, and for a pseudocubic (001) orientation, they showed remanent polarizations of 13 mu C/cm(2) and a high field d(33) of 340-355 pC/N. The 8.5 mol % Zr-doped crystal [again oriented along the pseudocubic (001)] was rhombohedral at room temperature with a remanent polarization of 10 mu C/cm(2). A k(33) value of 0.74 from resonance measurements was observed for the 4.5 mol % Zr-doped crystal. (C) 1999 American Institute of Physics. [S0021-8979(99)02815-7].
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页码:1657 / 1661
页数:5
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