Journal of the American Ceramic Society (JACerS) is a leading ceramics journal publishing research across the field of ceramic and glass science and engineering. Abstract In this work, Na0.5Bi4.5Ti3.94–xMn0.06NbxO15+y bismuth-layered ferroelectric ceramics were prepared by a solid-state reaction method.

NTC characteristics of a ceramic based on Bi2O3 doped with TiO2, Ta2O5 and WO3 have been studied over a temperature range of 100 to 700°C. The material was pressed into pellets and sintered in ...

U-shaped micropores induced dielectric and piezoelectric tunability in bismuth sodium titanate-based ceramics Tong Lu1, Huiling Du1,*, Nan Kong1, Haodong Li1, Shiyu Xu1, Zhao Li1, and Xian Du1 1College of Materials Science and Engineering, Xi'an University of Science and Technology, Xi'an 710054, Shaanxi, China Received: 8 December 2022

The classical view of the structural changes that occur at the ferroelectric transition in perovskite-structured systems, such as BaTiO3, is that polarization occurs due to the off-center displacement of the B-site cations. Here, we show that in the bismuth sodium titanate (BNT)-based composition 0.2(Ba0.4Sr0.6TiO3)–0.8(Bi0.5Na0.5TiO3), …

Bi0.5Na0.5TiO3 (abbreviated as BNT)-based ceramics are considered the promising candidates for lead-free piezoelectric materials to replace the widely used lead zirconate titanate (PZT)-based piezoelectric ceramics. Piezoelectric properties could be modulated by porous structures to meet the needs of piezoelectric energy converters. …

Bismuth titanate Bi4Ti3O12 (BIT), which belongs to the Aurivillius family, is one of the most interesting compounds among the bismuth-based layered ceramics. BIT is a ferroelectric material with wide applications in the electronic industry, as capacitors, transducers, memory devices and sensors. BIT ceramics materials with m= 3 were prepared by …

The system boundary considered in the hybrid life-cycle assessment (LCA) of lead zirconate titanate (PZT), sodium bismuth …

The scanning electron micrographs of the glass ceramic samples obtained by thermal treatment of the glasses at different temperatures are presented in Fig. 3, Fig. 4.It can be observed that the surface microstructures of BBB500 and SBB500 (Figs. 3 a & 4 a) contain crystalline aggregates comprising numerous randomly oriented fine …

The lead-free sodium bismuth titanate (BNT) system has been extensively investigated in the past decade due to its multi-functional electro-active pro…

The development of piezoelectric ceramics with high energy conversion efficiency is of decisive importance for the requirements of the advanced energy harvesting devices toward miniaturization and integration. Lead titanate-zirconate (PZT) piezoceramics are the most widely used energy harvesting (EH) materials due to their excellent …

New codoped composite bismuth layered compound (CaBi)1-x(LiMn)xBi6NbTi5O24 ceramics were obtained in a wide sintering temperature range. • The highest d33 was achieved at a low sintering temperature of 960 oC despite the moderate density.. The piezoelectricity (d33) was increased about 2 or 3 times of that of the end …

Bismuth Tungstate market types are categorized based on purity levels, including 99%, %, %, %, and others. Different industries prefer different purity levels depending on their specific needs and ...

July 7, 2009. Surface electron band structure of bismuth telluride. Credit: Yulin Chen and Z. X. Shen. Researchers at the DOE's SLAC National Accelerator Laboratory and Stanford …

attributed mainly to the grain size of the ceramics. 1 Introduction There is an urgent need for ultrahigh-temperature piezo-electric devices in high-technology domains such as avia-tion, energy and chemical industries. Aurivillius-type bismuth layer-structured piezoelectric ceramics possess the merits of high Curie temperature, low aging rate, good

The interpretation of the absorption bands in the IR spectra of glasses in the systems BaO–B 2 O 3 and ZnO–B 2 O 3 is close to the data for lithium-borate glasses, but the range of the absorption bands is somewhat different. The absorption bands in the region 1300 – 1100 cm –1 (more accurately 1240 – 1230 cm –1) are due to vibrations of the …

American Ceramic Technology, manufacturer of Silflex Shielding, the flexible silicone, nonhazardous, non-lead radiation shielding for the nuclear industry. Neutron and gamma shielding options including magnetic, stainless steel, …

Bismuth Titanate, a key material in the electronic and ceramics industries, has been experiencing steady growth in the market over the past few years. As a Consultant or Industry expert, it is ...

Piezoelectric and structural properties of bismuth sodium potassium titanate lead-free ceramics for energy harvesting. Published: 26 June 2021. Volume 32, pages …

In the ceramic tile industry Bismuth is used as ink to produce a bas-relief pattern on the glaze surface (sink effect). In the past, this effect was achieved typically by applying low melting point compounds such as V 2 O 5, but Vanadium pentoxide …

Bismuth-germanate glasses, which are well known as a promising active medium for broadband near-infrared spectral range fiber lasers and as an initial matrix for nonlinear optical glass ceramics, have been synthesized in a 5–50 mol% Bi2O3 wide concentration range. Their structural and physical characteristics were studied by Raman and FT-IR …

The breakdown field strongly determines the energy density of energy-storage ceramic capacitors. In this work, a compound sintering aid of CuO and SiO 2 was preferably selected to explore the effect on sintering behavior and energy storage of sodium bismuth titanate - strontium bismuth titanate (NBT-SBT) relaxor ferroelectrics. The …

Ferroelectric lead bismuth titanate (PbBi4Ti4O15) thin films, selectively controlled in c-axis and off-c-axis orientation, were fabricated on a Pt layer by a chemical solution deposition method.

Bismuth has been used in solders, a variety of other alloys, metallurgical additives, and medications and in atomic research. In the early 1990s, research began on the …

According to Thon et al., the NBT ceramics showed a direct transition with an optical bandgap ranging from 3.02 to 3.11 eV based on fabrication conditions and chemical defects [11]. In the NBT system, the probability of bismuth volatilization during high-temperature calcination and sintering results in non-stoichiometry.

Experimental. Bismuth sodium titanate (BNT) ceramics of the composition Bi 0.5+x Na 0.5-x TiO 3 with x = 0.005 and 0.010 were prepared by the conventional solid state route. Starting materials were bismuth oxide Bi 2 O 3 (Sigma Aldrich, purity 99.9 %), sodium hydrogen carbonate NaHCO 3 (Merck, purity ≥ 99.7 %) and titanium dioxide TiO …

Bismuth titanate (Bi4Ti3O12, BiTi) has been considered as a potential candidate for replacing PZT at the middle of this temperature range, with many possible applications, since it has a Curie ...

Bismuth is used as a compound in many products, such as the coating industry, pigments, friction materials, catalysts in the plastic, lubricants, and cosmetics. Bismuth oxides: Used as oxides in glass, ceramics, varistors, arrestors, capacitors, ferrites, and coatings.

The properties of low-melting lead-free glass based on the system ZnO–Bi 2 O 3 –B 2 O 3 with K 2 O, Al 2 O 3, and SiO 2 additions are studied experimentally and the results are presented. The complete spreading and softening temperature ranges are determined. The computed values of the CLTE and refractive indices of the glasses are …

Bismuth-germanate glasses, which are well known as a promising active medium for broadband near-infrared spectral range fiber lasers and as an initial matrix for nonlinear …

In the compound n number of pseudo perovskite layers (A n−1 B n O 3n+1) 2-are stacked between two bismuth oxide layers. The pseudo perovskite layer and the bismuth oxide layer can be considered to be stacked alternatively along the c axis [7, 8]. The number of pseudo perovskite layers, n in the compound can vary from 1 to 10.