Characterization of Ternary Compounds in the BaO:Fe2O3:TiO2System: Ba6Fe45Ti17O106and BaFe11Ti3O23

A new family of isostructural titanates, MLi2Ti6O14 (M = Sr, Ba, Pb)

“…It suggests the presence of residual compressive strain at this site. Similarly, high bond valence sums concerning Ba are known for many complex oxides [29]. On the contrary, the sum value for Pb is low (1.72), which indicates that the lone pair can be considered as a 12 anion.…”

X-Ray Structural Determination of a Multilayered Magnetic Dielectric Ceramic Ba42Ti51Fe20O174 in the BaO–TiO2–Fe2O3 System

“…2. This cp stacking is slightly different from the 3 Â 18 stacking (chcchchcccchchcchc) 3 (21) there was no face sharing between the octahedra, and in hexagonal h-BaTiO 3 face-sharing occurs only every three layers to avoid the presence of two shared faces in any octahedron. In the refined J-phase, nearly all octahedra are linked to each other by edges and vertices, there are only a few face-sharing connections in the P blocks and the stacking inversion observed in layer 6 favors edgesharing connections at the interface of P and H blocks.…”

Crystal Structure and Properties of Ba11FeTi27O66.5

“…For Ba 11 FeTi 27 O 66. 5 , this results in a coordination number of 11 and a relatively low bond-valence sum for Ba2 (Table 2, Figure 4). The partially occupied site Figure 1; as seen here, the structure is built from three types of layers (type 1 ϭ layers 1,5,6,10; type 2 ϭ layers 2,4,7,9; type 3 ϭ layers 3,8); the same types of layers occur in the 8L structure of Ba 4 Fe 2 Ti 10 O 27 ; as observed for the barium polytitanate phases, the cp layers (types 1 and 2) are characterized by the occurrence of vacancies, wherein two Ba ions substitute for three oxygen positions in a row; the partially occupied O22 site (hatched yellow spheres) corresponds to one of these vacancies between two Ba ions O22 corresponds to one of these cp vacancies, and occurs within bonding distance of Ba4 (Table 2, Figure 4).…”