High piezoelectric properties and domain configuration in BaTiO₃ceramics obtained through solid-state reaction route

Abstract

The reported data for average grain size g and average domain width w are incorrect in the previously published version. They should be multiplied by a factor of 2. The abstract should therefore be corrected to read as: "... at around 480 nm with the decrease in the grain size from 19 to 4.0 μm." The text on page 3, right column, should read as: line 7: "its g value is 19 μm" line 10: "at g=7 μm" line 20: "at around 480 nm" \noindent line 48: "g values ranging from 19 to 4.0 μm" and on page 4, right column, should read as: line 1: "g ≥ 7 μm" and "g < 7 μm". The bar scales in the previously published figure 2 are corrected by a factor of 2. The horizontal scale of average grain size g and the right-hand scale of average domain width w in the previously published figure 3 are both corrected by a factor of 2. These corrections affect no other part of the article. Corrected versions of figures 2 and 3 are included in the associated PDF file.

Fabrication of Textured Ceramics Using Mn and Nb-doped Hexagonal BaTiO₃ by an Electrophoretic Deposition in a High Magnetic Field

“…One is the small grain size. It is known that the dielectric and piezoelectric properties of BT ceramics were maximized at the grain size of ~1 µm, but they decreased with decreasing grain size [4][5][6]. In this study, the grain size was 0.4 µm, therefore the grain size needed to be increased to ~1 µm.…”

“…There are two major approaches to improving the piezoelectric properties. One is preparation of fine-grained BT ceramics [1][2][3][4][5][6]. It has been reported that the piezoelectric and dielectric properties of BT ceramics were maximized when the grain size was ~ 1 µm [4][5][6].…”

Strain Mechanisms in Lead-Free Ferroelectrics for Actuators

“…183 Several works on BT determine that a fine domain structure can greatly contribute to its piezoelectric activity. [214][215][216][217][218][219][220][221][222] Moreover, charged domains walls were also mentioned as further enhancing the piezoelectricity of materials with fine domains. 223 In general, enhanced electromechanical properties observed in materials with reduced domain size are associated with an increased domain wall density and their enhanced mobility.…”

“…Recent works demonstrated that exceptionally large electromechanical properties are achievable in pure BT obtained by an engineered synthesis route and/or microstructure. 214,[216][217][218][219][220]222 This compound is formed by relatively stable oxides that led to sintering temperatures around 1500 °C, which is higher than in the other lead-free counterparts. Nevertheless, usually a good sinterability is obtained in this family of materials.…”

Structural, dielectric, ferroelectric and magnetic properties of (x) CoFe₂O₄-(1-x) BaTiO₃ composite

“…It is the main component used in different electro-ceramic devices such as Multi-Layer Capacitors (MLCs), ferroelectric memory devices, and also in various applications utilizing its piezoelectric properties [18]. BaTiO 3 (BT) ceramics with a high piezoelectric coefficient have been successfully obtained by the conventional solid-state reaction route starting from ordinary BaCO 3 and TiO 2 powders in the work of Shoufu Shao, Jialiang Zhang et al [19]. It is well known that BT-based electronic devices perform at temperatures less than its Curie temperature (<120 ºC).…”