Flux-sintered BaTiO3 dielectrics

Influence of Microwave Irradiation Method on the Sintering of Barium Titanate with Liquid Phase

“…A low-temperature sintering method was developed 9 that combines a microwave method, which is expected to save energy, with a liquid-phase method currently being used as a low-temperature sintering method. [10][11][12][13][14] The component of the liquid phase being used is barium borate, which is known to form a liquid phase at 942c C when mixed with barium titanate, 15 but it forms no other chemical components.…”

Low temperature sintering of barium titanate ceramics assisted by addition of lithium fluoride-containing sintering additives

“…[1][2][3] In order to decrease the sintering temperature, addition of various types of sintering aids, mostly fluxes, have been tested in recent years. Any flux material must satisfy a set of requirements.…”

Characteristics of BaO–B2O3–SiO2 nano glass powders prepared by flame spray pyrolysis as the sintering agent of BaTiO3 ceramics

“…However, in order to achieve BaTiO 3 with a high density and high dielectric constant, high sintering temperatures above 1300 • C is required. At present, adding glass with a low melting point is an effective and inexpensive way to reduce the sintering temperature of BaTiO 3 -based ceramics [3][4][5][6][7][8][9]. Jeon et al showed the effects of BaO-B 2 O 3 -SiO 2 glass additive on densification and dielectric properties of BaTiO 3 ceramics started from hydrothermally synthesized nano-sized BaTiO 3 powders (∼60 nm) [5].…”

“…After milling process followed the post-treatment process, nano-sized BaTiO 3 powders with non-aggregation characteristics could be obtained [15,16]. However, micron or submicron size glass powders with irregular morphology prepared by conventional melting process have been mainly used to decrease the sintering temperature of BaTiO 3 ceramic [3][4][5][6][7][8][9]. Nanosized glass powders have not been applied as the sintering agent for BaTiO 3 ceramics.…”