Phase composition, crystal structure, infrared reflectivity and microwave dielectric properties of temperature stable composite ceramics (scheelite and zircon-type) in BiVO₄–YVO₄system

Abstract

(1 − x)BiVO4–xYVO4 (x ≤ 0.65) ceramics were prepared using the solid state reaction method. Bi–O oscillations were proved to dominate the microwave dielectric polarizations.

Novel temperature stable high-εrmicrowave dielectrics in the Bi2O3–TiO2–V2O5system

“…[1][2][3][4] Many classic microwave dielectric ceramics based on ABO3 perovskite structure have been explored and the relation between structure-property has been extensively studied. 5,6 Recently, many complex oxides with classic ABO4 type, such as scheelite (CaMoO4, BiVO4), 7,8 Fergusonite (LaNbO4, NdNbO4), 9 stibiotantalite (BiNbO4, BiTaO4), 10,11 wolframite (ZnWO4, MgWO4), 12 zircon (CeVO4) 13 and rutile ((Zn,Nb)TiO4, (Cu,Nb)TiO4) 14 lattice.…”

Sol-gel method for preparing a novel red-emitting phosphor YVO4:Sm3+, Eu3+ with ideal red color emission

“…The effect of doping concentration on luminescence properties and the energy-transfer mechanism between Sm 3+ and Eu 3+ have been investigated in these phosphors [1,10]. Many methods can M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT 4 be used to prepare YVO 4 phosphors doped with Ln 3+ ions, including the methods of co-precipitation [11], hydrothermal [12,13], solvothermal treatment [14], microwave treatment [15], and sol-gel synthesis [16,17]. Among these methods, sol-gel synthesis is deemed as one of the most important and effective techniques because of its simplicity, the molecular-level uniformity that can be obtained in a short period, and easy synthesis at low temperatures [18].…”

Intrinsic dielectric properties of columbite ZnNb2O6 ceramics studied by P–V–L bond theory and Infrared spectroscopy

“…For instance, far‐infrared reflectivity spectra transformed by damped oscillator mode indicate that the translational mode of Ba–O bond provides the majority of contributions to the dielectric properties in Ba 1+ x MoO 4 ceramics . The vibrations of Bi–O bond are primary factors dominating the dielectric polarizations in (1− x )BiVO 4 – x YVO 4 ceramics . By varying linewidth γ value, Alford's group in detail discuss the microwave dielectric loss in both single crystal and polycrystalline, giving the right order of magnitude of dielectric loss.…”

“…18 The vibrations of Bi-O bond are primary factors dominating the dielectric polarizations in (1−x)BiVO 4 -xYVO 4 ceramics. 19 By varying linewidth γ value, Alford's 20 group in detail discuss the microwave dielectric loss in both single crystal and polycrystalline, giving the right order of magnitude of dielectric loss. Therefore, investigating the intrinsic lattice vibrations of ZnNb 2 O 6 system may provide insight to better understand its microwave dielectric performance.…”