Low sintering BaNd2Ti4O12 microwave ceramics prepared by CuO thin layer coated powder

INFLUENCE OF MnO₂ ADDITIONS TO BaNd₂Ti₄O₁₂ MICROWAVE CERAMICS ON SINTERING BEHAVIOR AND DIELECTRIC PROPERTIES

“…Hence, by analogy, the sintering behavior of our experiment should be closely related to Mn doping causing the formation of Mn containing liquid phase. As previously reported [5], the optimal sintering temperature of pure BaNd 2 Ti 4 O 12 ceramics was generally higher than 1350°C. Therefore, when comparing our results with previous studies, we could clearly see that the adequate Mn doping would effectively reduce the sintering temperature and the BNT4 ceramics could be well-sintered at the temperature lower than 1300°C.…”

“…Ceramics, with BaO:Nd 2 O 3 :TiO 2 of around 1:1:4 and a high dielectric constant (ε r = 70 -90), have been commonly applied in mobile telephone systems [4]. As reported by previous researches [4,5], the chemical compound BaNd 2 Ti 4 O 12 has emerged as a promising microwave ceramic due to a good combination of a high dielectric constant (ε r ~ 84) and a high quality factor (Q × f ~ 7 800 GHz). But the large τ f value of 94 ppm•°C -1 limits its practical applications as dielectric resonator.…”

Microstructures and microwave dielectric properties of (Ba1−xSrx)4(Sm0.4Nd0.6)28/3Ti18O54 solid solutions

“…Ba 6-3x Ln 8+2x Ti 18 O 54 (Ln = La, Nd, Sm) has been reported to possess high permittivity ( r  ) and quality factor (Q × f ) [20][21][22][23][24]. The aim of our present work is to improve the microwave dielectric properties of (Ba 1−x Sr x ) 4 …”

Low-temperature firing and microwave dielectric properties of Ba–Nd–Ti with composite doping Li–B–Si and Ba–Zn–B glasses

“…Since then there have been many reports of the BNT [5][6][7][8][9][10][11][12]. However, the sintering temperature of the pure BNT is usually as high as 1350°C, and thus it is not suitable to be used in LTCC.…”