Aurivillius-phase layered material SrBi₂Ta₂O₉ possesses extremely low leakage current (~10^-9 A×cm^-2) along the out-of-plane direction with in-plane ferroelectricity, which brings in difficulties in achieving high ferroelectric performance and low leakage current simultaneously in the randomly oriented ceramic. Here, highly textured SrBi₂Ta₂O₉ ceramics with texture degree of f = 0.985 are prepared using templated grain growth (TGG) technology with tape-casting method. The in-plane remnant polarization achieves 15.83 μC×cm^-2, which is increased by 197% compared with that of SrBi₂Ta₂O₉ randomly oriented ceramic. Doping Ca elements is found to reduce in-plane leakage current density to J = 5.924 × 10^-7 A×cm^-2, which is attributed to the increased electronic band gap. This research presents an effective route for developing high-performance SrBi₂Ta₂O₉-based ferroelectric device.

A new sintering densification method without the aid of a liquid phase is proposed for preparing [001]_c-textured BaTiO₃ ceramics with high ferroelectric performance. With the help of phase-field modeling, the size and concentration of the templates are optimized to control the densification process. Compared with randomly oriented BaTiO₃ ceramics, the prepared textured BaTiO₃ ceramics with designed templates demonstrate an improvement in the crystallographic preferred orientation and densification due to the orientation fluctuation of nucleation and growth, which overcomes the limitation of symmetric-constrain strains. This new densification mechanism is comprehensively revealed by the active energies of the sintering curves and electron backscattered diffraction analysis, where the obvious anisotropic shrinkage that increases the densification manifests a different driving force from that of the normal liquid-phase sintering method. The resulting highly textured BaTiO₃ ceramics exhibit abnormal comprehensive ferroelectric properties, achieving a high piezoelectric constant (d₃₃) of 490±11 pC·N⁻¹, which exceeds that of BaTiO₃ single crystals while having small remanent polarization (8.5 μC·cm⁻² at 15 kV·cm⁻¹). Thus, the current method is expected to provide a new strategy for preparing textured ferroelectric ceramics with high performance.

Textured ferroelectric ceramics are a class of materials developed in the past 40 years to improve performance of ferroelectric ceramics by texturing technique, which has attracted much attention for their piezoelectric properties far exceed random oriented ceramics and cost lower than single crystals. This review focuses on advances in textured ferroelectric ceramics with perovskite structure, including characterization and evaluation methods of textured ceramics, preparation process of perovskite ferroelectric ceramics, influencing factors of texture degree, and development of piezoelectric performances of representative ferroelectrics such as lead-based relaxor ferroelectrics,（Na, Bi）TiO₃-based,（K, Na）NbO₃-based, BaTiO₃-based and BiScO₃-PbTiO₃ based ceramics. Finally, some hot issues in textured perovskite ferroelectric ceramics research are summarized, and future development is also prospected.