Fabrication of Na0.5Bi0.5TiO3–BaTiO3‐Textured Ceramics Templated by Plate‐Like Na0.5Bi0.5TiO3 Particles
Fabrication of Na0.5Bi0.5TiO3–BaTiO3‐Textured Ceramics Templated by Plate‐Like Na0.5Bi0.5TiO3 Particles
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DOI：
10.1111/j.1551-2916.2009.03043.x
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发表时间：
2009-07
影响因子：
3.9
通讯作者：
Wei Zhao;J. Ya;Ying Xin;E. Lie;Dan Zhao;Heping Zhou
中科院分区：
文献类型：
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作者：
Wei Zhao;J. Ya;Ying Xin;E. Lie;Dan Zhao;Heping Zhou
采用模板晶粒生长法（TGG），以各向异性形状的Na0.5Bi0.5TiO3（NBT）为模板，制备了织构化的0.94Na0.5Bi0.5TiO3 ― 0.06BaTiO3（NBT-6 BT）陶瓷.以Na0.5Bi4.5Ti4O15（NBIT）为前驱体，采用局部化学法合成了片状NBT. NBT颗粒的平均长度为10-15 μm，厚度为1 μm，是TGG法制备织构陶瓷（尤其是NBT基陶瓷）的理想模板。研究表明，NBT模板对NBT― 6 BT陶瓷的晶粒取向诱导是有效的。对于5vol%NBT模板织构化的NBT― 6 BT陶瓷，给出了0.87的Lotgering因子和299 pC/N的d33。
Textured 0.94Na 0.5 Bi 0.5 TiO 3 ―0.06BaTiO 3 (NBT-6BT) ceramics were fabricated by templated grain growth (TGG) using anisotropically shaped Na 0.5 Bi 0.5 TiO 3 (NBT) templates. Platelet NBT was synthesized by the topochemical technique, using precursor Na 0.5 Bi 4.5 Ti 4 O 15 (NBIT). The NBT particles have an average length of 10-15 μm and a thickness of 1 μm, which are suitable templates for obtaining textured ceramics (especially NBT-based ceramics) by the TGG process. This study revealed that the NBT templates are effective in inducing grain orientation in NBT―6BT ceramics. For NBT―6BT ceramics textured with 5 vol% NBT templates, a Lotgering factor of 0.87 and a d 33 of 299 pC/N are given.