Annealing effects on the crystallite size and dielectric properties of ultrafine Ba_1−xSr_xTiO₃(0 < x < 1) powders synthesized through an oxalate-complex precursor

Formation of BaTiO3 nanoparticles from an aqueous precursor by flame-assisted spray pyrolysis

“…These results were consistent with previous studies in which the size of the initial powder was positively associated with highdielectric constants of the resulting pellets. 1,2 In summary, since FASP-produced BaTiO 3 particles had relatively high dielectric constants, these particles would be suitable for MLCC fabrication.…”

“…1-3 BaTiO 3 has a perovskite structure, possesses a high dielectric constant, is chemically stable and has tunable physical properties. 2 In the last decade, the size of electronic devices has been scaled down, driving the development of smaller electronic components. To meet this requirement, fabrication of very fine BaTiO 3 particles with good electrical properties is necessary.…”

Dielectric properties of polycrystalline Cu–Zn ferrites at microwave frequencies

“…Essentially, these results emphasis that, maximum dielectric constant is associated with crystallinelike order in Cu-Zn ferrites. Recently, Caruntu et al [17] have also reported a similar observation in different compounds. It is also evident that the lattice strain decreases with addition of Zn and reaches a minimum corresponding to sample identified as x = 0.2 and thereafter the lattice strain increases which is in conformity with the observations made in terms of physical parameters like dielectric constant and loss tangent.…”

Development of copper doped titania based photoanode and its performance for dye sensitized solar cell applications

“…Greater crystallite size indicates greater crystallinity of nanoparticles [24]. Caruntu et al [25] and Haripriya et al [26] have studied the annealing effects on crystallite sizes in oxide ceramics. They have attributed the growth of crystallites to the coalescence and clustering of individual crystallites on annealing.…”