A new temperature stable microwave dielectric with low-firing temperature in Bi2MoO6–TiO2 system

BaTa2V2O11: A novel low fired microwave dielectric ceramic

“…Fang et al [17] reported that a near-zero τ f was obtained by formation of a composite ceramic between CaTiO 3 and LiCa 3 MgV 3 O 12 . A similar result was recently reported by Pang et al [18] to tailor τ f of Bi 2 MoO 6 ceramics by adding TiO 2 . Thus, it is crucial to search for an appropriate ceramic with negative large τ f value to tune the positive τ f of BaTa 2 V 2 O 11 ceramic.…”

“…By comparison, it is seen that the BaTa 2 V 2 O 11 showed not only encouraging microwave dielectric properties, but also relatively low sintering temperature. It is well-known that formation of a composite ceramic between microwave dielectrics with opposite signs of τ f is an effective approach to adjust τ f value [17,18]. TiO 2 or CaTiO 3 is mainly added into microwave dielectric ceramics with negative τ f values to achieve temperature stability.…”

Microwave dielectric properties of (1−x)ZnMoO4–xTiO2 composite ceramics

“…According to the empirical logarithmic rule, the f of the mixed ceramic can be obtained as follows: [13] f = y 1 f 1 + y 2 f 2 (5) where f1 and f2 are the f values of material 1 and material 2, respectively. The theoretical and measured f values are plotted in Fig.…”

A novel low-firing microwave dielectric ceramic NaMg4V3O12 and its chemical compatibility with silver electrode

“…Since the microwave dielectric materials applied in LTCC have to be co-fired with the conductive silver electrode, the sintering temperature should be lower than the melting temperature of Ag (961 o C) [7]. Addition of low-melting sintering aids is a common method to reduce the sintering temperature of microwave dielectric ceramics [8]. Additionally, searching for materials with intrinsically low sintering temperature is still a cutting-edge field of scientific research.…”