Sintering behavior, phase evolution and microwave dielectric properties of thermally stable (1−x)Li3NbO4−xCaTiO3 composite ceramic

Electrostatic Interactions versus Second Order Jahn–Teller Distortion as the Source of Structural Diversity in Li3MO4 Compounds (M = Ru, Nb, Sb and Ta)

“…Oxides have always been a rich playground for solid-state scientists due to their vast chemical compositions, structural diversity, and intriguing electronic properties. The rocksalt type (NaCl) structure is one the most common structural families, and many of its representatives have been studied in different fields, for example magnetism as for β-Li 2 IrO 3 1 or Ag 3 RuO 4 2 , dielectrics like Li 2 TiO 3 or Li 3 NbO 4 derivatives 3,4 , and electrochemical energy storage via Li-ion or Na-ion batteries. 5,6 Within a rocksalt structure of general composition MO with M being the cation, the atomic arrangement presents three important features: i) all cations are octahedrally coordinated by anions and so are the anions by the cations, ii) anions are close-packed (FCC stacking) and all octahedral interstices are occupied with cations, and iii) MO 6 octahedra are connected by their edges.…”

“…Oxides have always been a rich playground for solid-state scientists due to their vast chemical compositions, structural diversity, and intriguing electronic properties. The rocksalt type (NaCl) structure is one the most common structural families, and many of its representatives have been studied in different fields, for example, magnetism as for β-Li 2 IrO 3 or Ag 3 RuO 4 , dielectrics like Li 2 TiO 3 or Li 3 NbO 4 derivatives, , and electrochemical energy storage via Li-ion or Na-ion batteries. , …”

The relationship between crystal structure and modified microwave dielectric properties of Ca3SnSi2‐xGexO9 ceramics

“…Ti-based materials (e.g., TiO 2 , CaTiO 3 , and SrTiO 3 ) exhibit high ε r and dielectric loss and can increase the ε r and deteriorate the Q × f of matrix ceramics. [18][19][20][21] As a τ f resonator, Ti-based materials cannot be the optimum choice to adjust the τ f of low-permittivity microwave ceramics to nearer zero for millimeter-wave applications. We have surveyed the relationships between the τ f and crystal structure of CaSnSiO 5 in detail.…”

Temperature‐stable BaAl2Si2O8–CaSnSiO5 microwave dielectric ceramics

“…Ti-based materials (e.g., TiO 2 , CaTiO 3 , and SrTiO 3 ) exhibit higher ε r , larger positive τ f , and higher dielectric loss than low-ε r microwave dielectric ceramics. [15][16][17] Ti-based materials are used to adjust the τ f of low-ε r microwave dielectric ceramics to near zero, increase ε r and deteriorate the Q × f of matrix ceramics. Microwave dielectric ceramics with low ε r , high Q × f, and large positive τ f can be the best choice to adjust the τ f of lowε r microwave dielectric ceramics to near zero.…”

“…Ti‐based materials (e.g., TiO 2 , CaTiO 3 , and SrTiO 3 ) exhibit higher ε r , larger positive τ f , and higher dielectric loss than low‐ ε r microwave dielectric ceramics 15–17 . Ti‐based materials are used to adjust the τ f of low‐ ε r microwave dielectric ceramics to near zero, increase ε r and deteriorate the Q × f of matrix ceramics.…”