Area of research
Materials Chemistry · Electrical and Electronic Engineering
Research interest
Research topics from publications: Low-fired fluoride microwave dielectric ceramics with low dielectric loss; Optimised phase compositions and improved microwave dielectric properties based on calcium tin silicates; Phase compositions and microwave dielectric properties of Sn-deficient Ca2SnO4 ceramics; Sintering behaviour, lattice energy and microwave dielectric properties of melilite-type BaCo2Si2O7 ceramics. Representative work: A novel melilite-type compound BaCo2Si2O7 with monoclinic structure (C2/c) was prepared via solid-state reaction method. The correlations amongst microstructure, crystal structure, bond ionicity, lattice energy and microwave dielectric properties were systematically analyzed. The microwave dielectric properties of BaCo2Si2O7 ceramics were determined by extrinsic (pores) and intrinsic (lattice energy) factors. The dielectric constant (εr), quality factor (Q × f) and temperature coefficient of resonant frequency (τf) were dominated by the relative density and the lattice energies of Si–O and Ba–O bonds. Optimum microwave dielectric properties for BaCo2Si2O7 ceramics were obtained when sintered
Phase compositions and microwave dielectric properties of Sn-deficient Ca2SnO4 ceramics
Sintering behaviour, lattice energy and microwave dielectric properties of melilite-type BaCo<sub>2</sub>Si<sub>2</sub>O<sub>7</sub> ceramics
Low-fired fluoride microwave dielectric ceramics with low dielectric loss
Optimised phase compositions and improved microwave dielectric properties based on calcium tin silicates