Garnet mineral based composites through cold sintering process: Microstructure and dielectric properties

Insights Into the Microstructure and Dielectric Properties of Cold Sintered NaCa2Mg2V3O12 Based Composites

“…The enhancement in grain growth happened as a result of particle (NaCl) transportation from higher to lower chemical potential. Similar type of grain growth occurred in pure ZnO reported by Funahashi et al (2017b) and also in garnet mineral reported by Sibi et al (2020). Figures 6a-h shows the EDS mapping and spectra for the optimum volume fraction of 0.5 NCMVO-0.5 NaCl composite.…”

“…Wang et al (2018bWang et al ( , 2019a) reported a novel dielectric GRIN lens based on the cold sintering of NBMO-xLMO and BLVMO-xNMO systems. Moreover CSP has attracted a lot of research interest in a wide range of areas especially in the field of semiconductors, ionic conductors, piezoelectric ceramics, Li ion batteries, nano composites, thermo electrics and low dielectric loss ceramics (Berbano et al, 2017;Funahashi et al, 2017a;Seo et al, 2017;Charoonsuk et al, 2018;Gonzalez-Julian et al, 2018;Induja and Sebastian, 2018;Leng et al, 2018;Ndayishimiye et al, 2018a,b;Wang et al, 2018a;Sibi et al, 2020). Induja and Sebastian (2018) reported that Al 2 SiO 5 ceramics can be easily densified using CSP with the aid of NaCl as water soluble additive.…”

“…Induja and Sebastian (2018) reported that Al 2 SiO 5 ceramics can be easily densified using CSP with the aid of NaCl as water soluble additive. Sibi et al (2020) found that garnet mineral can be densified using NaCl, Li 2 MoO 4 , and V 2 O 5 . Recently, Santha et al (2020) reported the dielectric properties of cold sintered MgTiO 3 using NaCl as additive.…”

Cold sintering co‐firing of (Ca,Bi)(Mo,V)O4–PTFE composites in a single step

“…Table 1 shows the relative densities and microwave dielectric properties of cold‐sintered microwave dielectric ceramics with LMO addition. According to the dense microstructure in Figures 3 and 4, excellent microwave dielectric properties: ε r ∼ 11, Q × f ∼ 7000 GHz, and τ f ∼ −3 to −7 ppm/°C were obtained in the cold‐sintered CBMVO ceramics, which are better than those in other cold‐sintered microwave dielectric ceramics, 16,22,46 especially for the Q × f and τ f values.…”