Effects of BaO–SiO2 glass particle size on the microstructures and dielectric properties of Mn-doped Ba(Ti, Zr)O3 ceramics

Thermally Stable BaTiO3‐Bi(Mg2/3Nb1/3)O3 Solid Solution with High Relative Permittivity in a Broad Temperature Usage Range

“…Although most PbTiO 3 ‐based relaxor materials may offer high operating temperatures, this is at the expense of environment . Besides, in order to satisfy the development of devices toward greater miniaturization and c, high permittivity is also urgently required …”

“…[4][5][6][7][8] Besides, in order to satisfy the development of devices toward greater miniaturization and c, high permittivity is also urgently required. 9 As one of lead-free materials, BaTiO 3 (BT) has been extensively studied and applied to capacitors for many years owing to its good dielectric properties. 10 Nevertheless, the sharp phase transition of pure BT at the Curie temperature (T C ) results in highly and strongly temperature-sensitive dielectric properties and a serious deterioration in permittivity at >200°C, which restricts its further application at elevated temperatures.…”

Effects of Kaolinite addition on the densification and dielectric properties of BaTiO3 ceramics

“…It was because the space charge polarization was unable to keep pace with the variation of electric field over this frequency range, and it was the orientation polarization that played a major role in polarization of ceramics. Researches [12,22] have shown that two factors contribute to the dielectric constant, one is the densification and grain size distribution of ceramic, the other is the additive amount and property of glass. In this paper, samples were prepared with well densification and suitable grain sizes.…”

“…However, BaTiO 3 ceramics are usually sintered at temperatures above 1350 • C. Therefore, it is required to develop capacitor materials which can be fully densified at a low sintering temperature. Recently, numerous researches have been applied to the sintering of BaTiO 3 -based ceramics for the purpose of lowering the sintering temperature and optimizing properties of the components and devices as well [6][7][8][9][10][11][12][13].…”

“…Moreover, adding glass or oxides as sintering aids is considered to be an effective method. Several glass powders such as ZnO-B 2 O 3 -SiO 2 [6,10], BaO-B 2 O 3 -SiO 2 [11], and BaO-SiO 2 [12] compositions have been used to decrease the sintering temperature of BaTiO 3 ceramics. Oxides [13] such as Bi 2 O 3 , B 2 O 3 , SiO 2 , and Al 2 O 3 have been added as the sintering aid, which can effectively lower the sintering temperature of BaTiO 3 -based ceramics.…”