Textured (K_0.47Na_0.51Li_0.02)(Nb_0.8Ta_0.2)O₃ (KNLNT20) piezoelectric ceramics were prepared using NaNb_1−xTa_xO₃ templates. The highest degree of grain orientation (97%) and piezoelectric constant (342 pC/N) were obtained upon adding 3 wt% of the NaNb_0.8Ta_0.2O₃ (NNT20) template and sintering at 1150 °C for 1 h. Back-scattered scanning electron micrographs of the textured KNLNT20 samples sintered at 1150 °C for 1 h indicated the presence of templates similar in size to the original ones within the cores of the textured grains. The peak value of the dielectric constant corresponding to the NNT20 core decreased after prolonged holding at 1150 °C, owing to a decrease in the size of the NNT20 core because of the interdiffusion of K, Na, and Li ions between the NNT20 core and KNLNT20 shell. This interdiffusion also decreased the piezoelectric constant, d₃₃ value of the textured KNLNT20 samples by inducing a change in the chemical composition of the shell region.

使用NaNb _1-x Ta _x O ₃模板制备织构化的（K _0.47 Na _0.51 Li _0.02）（Nb _0.8 Ta _0.2）O ₃（KNLNT20）压电陶瓷。添加3 wt％的NaNb _0.8 Ta _0.2 O ₃可获得最高的晶粒取向度（97％）和压电常数（342 pC / N）（NNT20）模板，并在1150°C下烧结1小时。在1150°C下烧结1 h的织构KNLNT20样品的反向散射扫描电子显微照片表明，在织构晶粒的核内存在与原始模板大小相似的模板。长时间保持在1150°C后，与NNT20磁芯相对应的介电常数的峰值减小，这是由于NNT20磁芯与KNLNT20之间的K，Na和Li离子相互扩散导致NNT20磁芯尺寸减小的缘故壳。这种相互扩散还通过引起壳区域化学成分的变化而降低了纹理化的KNLNT20样品的压电常数d ₃₃值。