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<00l> textured 0.72(Bi 0.5 Na 0.5 )TiO 3 –0.28SrTiO 3 ()lead-free piezoelectric ceramic was fabricated by template grain growth using plate-like SrTiO 3 as a template. The templated growth of <00> oriented BNT–ST grains on the ST template resulted in textured ceramics with brick wall microstructures and a high degree of orientation of 82%. Relationships...
Lead-free (Ba1−xCax)(Ti0.98Zr0.02)O3 (x=0–0.04) ceramics were prepared successfully using a solid-state reaction technique. The polymorphic phase transitions (PPT) from orthorhombic to tetragonal phase around room temperature were identified in the composition range of 0<x<0.03. High piezoelectric coefficient of d33=375pC/N and planar electromechanical coupling factor of kp=44.1% were obtained...
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