Aurivillius BaBi4Ti4O15 based compounds: Structure, synthesis and properties

Abstract

Review: 67 refs.

Sintering behavior, microstructure and dielectric performance of BaTiO3 with 60–65 wt% addition of B2O3-Bi2O3-SiO2-ZnO glass

“…These dielectric properties can be explained by the removal of large pores and the existence of the Bi4Ti3O12/BaBi4Ti4O15 phase. As mentioned above, these phases belong to the Bi2O3-TiO2 Aurivillius perovskite family, which exhibits highly anisotropic symmetry, so that their dielectric properties can show wide variations between samples [11][12][15][16]. Cui et al [15] reported that BaBi4Ti4O15 has tan δ of 0.0135 at 1 kHz.…”

“…This BaBi4Ti4O15 phase is observed in similar composite of 50 wt% BaTiO3-50 wt% BBSZ glass[14]. It should be noted that both Bi4Ti3O12 and BaBi4Ti4O15 belong to the Aurivillius perovskite family, which is widely used in microwave and optical ceramics and is also attracting attention due to its unique ferroelectric and piezoelectric properties[11][12][13]. Furthermore,Fig.…”

“…The BBSZ glass was fabricated as reported earlier [11,12]. BaTiO3 powder (purity >99.7 %, Alfa Aesar, MA, US) was mixed for 8 hrs with 50, 60 and 65 wt.% BBSZ glass (denoted as A50, A60 and A65) in deionized water without any binder.…”

Structure and dielectric behaviour of Sr-modified Bi4Si3O12 thin films prepared via sol gel method

“…In the Bi 2 O 3 -SiO 2 system there is a large number of crystalline ternary bismuth compounds, such as Bi 2 SiO 5 , Bi 4 Si 3 O 12 and Bi 12 SiO 20 [10][11][12][13][14]. One of the most common compounds in the Aurivillius [15][16][17][18][19][20]. In the Aurivillius formula, A is a mono-, di-or tri-valent large cation in 12-fold cation sites which can be occupied by Ba 2+ , Ca 2+ , Bi 3+ and the rare earth cations, while B is a tri-, tetra-, penta-or hexa-valent small cation such as Ti 4+ , Nb 5+ and W 6+ [15][16][17].…”

“…One of the most common compounds in the Aurivillius [15][16][17][18][19][20]. In the Aurivillius formula, A is a mono-, di-or tri-valent large cation in 12-fold cation sites which can be occupied by Ba 2+ , Ca 2+ , Bi 3+ and the rare earth cations, while B is a tri-, tetra-, penta-or hexa-valent small cation such as Ti 4+ , Nb 5+ and W 6+ [15][16][17]. Either A-site or B-site substitution can improve dielectric and ferroelectric properties of BSO, but the mechanism is different for each substitute.…”