Influence of Zn0.5Ti0.5NbO4 on the structure and microwave dielectric properties of ZrTiO4 ceramics. Issue 4 (March 2020)

• Record Type: Journal Article
• Authors: Yang, Qiu; Li, Enzhu; Yang, Hongyu; Yang, Hongcheng; Wen, Qingyu; Yuan, Ying; Zhang, Shuren
• Is Part Of: Ceramics international. Volume 46:Issue 4(2020)
• Page Start: 4543
• Page End: 4549
• Publication Date: 2020-03
• Subjects: Dielectrics -- Ceramics -- Solid solution; Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2019.10.182
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: In this work, x Zn0.5 Ti0.5 NbO4 -(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- x Zn0.5 x Ti1-0.5 x Nb x O4 (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/ o C.