Investigation of enhanced performance in BF-xPT-0.05BZ ternary ceramics for high temperature applications |
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| Affiliation: | 1. Nano Functional Materials laboratory, Laser Materials Development & Device Division, Raja Ramanna Centre for Advanced Technology, Indore 452013, India;2. UGC-DAE Consortium for Scientific Research, Indore 452017, India;1. Frontier Institute of Science and Technology, and State Key Laboratory for Mechanical Behavior of Materials, Xi''an Jiaotong University, Xi''an, 710049, China;2. Center for Function Materials, National Institute for Materials Science, Tsukuba, 305-0047, Ibaraki, Japan;3. Laboratory of Thin Film Techniques and Optical Test, Xi''an Technological University, Xi''an, 710032, Shaanxi, China;1. Department of Electronics and Communication Engineering, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar 751030, India;2. Department of Physics ITER, Siksha ‘O’ Anusandhan (Deemed to be University), Bhubaneswar 751030, India;1. Beijing Center for Physical and Chemical Analysis, Beijing 100089, China;2. School of Materials Science & Engineering, Beihang University, Beijing 100191, China;3. Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | (0.95-x)BiFeO3-xPbTiO3-0.05BaZrO3 (BF-xPT-0.05BZ) ternary ceramics were synthesized by the solid-state reaction method, which present a perovskite structure without detectable second phase. BF-0.32PT-0.05BZ ceramics display the dominant rhombohedral structure with a small amount of tetragonal phase, revealing the characteristics of morphotropic phase boundary (MPB). The well-densified ceramics possess the average grain size of 8–15 μm with different PT contents. The ferroelectric-paraelectric phase transition of BF-xPT-0.05BZ ceramics shows the characteristic of the first-order transition, which occurs at around 550 °C. It is noticeable that BF-0.32PT-0.05BZ ceramics exhibit the giant remnant polarization of 60 μC/cm2 under the field of 175 kV/cm. Moreover, BF-0.32PT-0.05BZ ceramics show the highest piezoelectric constant d33 of 105 pC/N and Qm of 501. The depolarization temperatures of BF-xPT-0.05BZ ceramics are much close to their Curie temperature TC, proving the extensive prospect for high temperature piezoelectric applications. |
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| Keywords: | Morphotropic phase boundary Curie temperature Piezoelectric properties |
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