Abstract The MgTiTa2O8 ceramics were fabricated by a conventional solid-state method, and their microwave dielectric properties were reported for the first time. The MgTiTa2O8 ceramics were well sintered over the… Click to show full abstract
Abstract The MgTiTa2O8 ceramics were fabricated by a conventional solid-state method, and their microwave dielectric properties were reported for the first time. The MgTiTa2O8 ceramics were well sintered over the temperature range (1150–1300 °C), achieving the optimized density (~95%) at 1225 °C. X-ray diffraction and its Rietveld refinement results confirmed that MgTiTa2O8 ceramics crystallized into a trirutile-type structure with space group P42/mnm (136). The MgTiTa2O8 ceramic sintered at 1225 °C exhibited the optimized dielectric properties with relative permittivity of 41.6, Q × f value of 30,000 GHz (Resonant frequency = 7.6 GHz), and τf value of +103.9 ppm/°C.
Journal Title: Ceramics International
Year Published: 2019
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