Influence of Zn0.5Ti0.5NbO4 on the structure and microwave dielectric properties of ZrTiO4 ceramics |
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| Affiliation: | 1. Department of Physics, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan;2. Center of Excellence in Solid State Physics, University of the Punjab, Quaid-e-Azam Campus, Lahore 54590, Pakistan;3. Department of Physics, COMSATS Institute of Information Technology, Lahore, Pakistan;4. Department of Physics, School of Science and Engineering (SSE), Lahore University of Management Sciences (LUMS), Opposite Sector U, DHA, Lahore 54792, Pakistan;1. Department of Chemistry, University of Missouri – Kansas City, Kansas City, MO 64110, USA;2. State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics Fine Mechanics and Physics, Chinese Academy of Sciences, 3888 Eastern South Lake Road, Changchun 130033, China;3. Key Laboratory of Nanodevices and Applications, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, 215123 Suzhou, China;4. University of Shanghai for Science and Technology, Shanghai 200093, China;1. National Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, Chengdu, 610054, China;2. Key Laboratory of Multi-Spectral Absorbing Materials and Structures of Ministry of Education, University of Electronic Science and Technology of China, Chengdu, 610054, China;1. College of Electronic Information and Engineering, Hangzhou Dianzi University, 310018, Hangzhou, China;2. Department of Materials Science and Engineering, School of Engineering, Meybod University, 89616-99557, Yazd, Iran;3. Department of Materials Science and Engineering, Golpayegan University of Technology, Golpayegan, Isfahan, Iran |
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| Abstract: | In this work, xZn0.5Ti0.5NbO4-(1-x) ZrTiO4 (0.1 ≤ x ≤ 0.5) ceramics were prepared through the traditional solid-state route. The microstructure, phase evolution and crystallographic variations were investigated in detail. An orthorhombic structure solid solution was formed with the composition of Zr1-xZn0.5xTi1-0.5xNbxO4 (0.1 ≤ x ≤ 0.5). Variations of lattice parameters were responsible for the opposite movement of different XRD peaks as increasing x value. Chemical bond theories include that bond ionicity, bond susceptibility, lattice energy, bond energy and linear thermal expansion coefficient are correlated with dielectric properties. Temperature stable ceramics were obtained when x = 0.2 with excellent dielectric performances: Q × f = 26741 GHz, εr = 41.93 and τf = ?2.3 ppm/oC. |
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| Keywords: | Dielectrics Ceramics Solid solution |
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