Abstract
? 2022 Elsevier B.V.Ceramics with composition of Pr2(Zr1?xTix)3(MoO4)9 (0.02 ≤ x ≤ 0.10) were fabricated by classic solid-phase method. X-ray diffractometer (XRD), Scanning electron microscope (SEM), Raman spectra, FT-IR spectrometer and Agilent vector network analyzer were used to investigate the composition of phase, microscopy, lattice vibration, internal dielectric responding and dielectric properties, respectively. XRD indicates the Pr2(Zr1?xTix)3(MoO4)9 (0.02 ≤ x ≤ 0.10) ceramics own trigonal-type crystal structure and R-3c space group and the SEM patterns confirms the optimal sintering temperature is 800 °C. Simultaneously, the ceramic reached the optimal microwave dielectric properties with εr = 10.8, Q×f = 81,539 GHz and τf = ?14.2 ppm/°C at 800 °C for x = 0.10. By means of the theory of complex crystals chemical bonds (P-V-L theory), the connections with crystal structure and microwave dielectric properties were deeply discussed. Due to the relatively low fired temperature and superior dielectric properties, there is an expect for Pr2(Zr0.90Ti0.10)3(MoO4)9 ceramic to apply in low temperature cofired ceramic (LTCC).
NSTL
Elsevier