Grain-controlled barium titanate ceramics prepared from high-gravity reactive precipitation process powder

Li-jie, Gao; Liu, Xiaolin; Zhang, Jing-qiang; Wang, Song-Quan; Chen, Jianfeng

doi:10.1016/j.matchemphys.2004.03.023

Cited by 23 publications

(6 citation statements)

References 15 publications

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“…Sintering temperatures of 1200 and 1300ºC, for 1mm-thick specimens from powder particle size of 35 nm have been reported with a maximum grain growth of 2.2 ȝm (6185.71% grain growth) [17]. Sintering temperatures of 800ºC applied for ten hours using 30 nm diameter BTO powders provided a theoretical density of 90% [2].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of barium titanate by binder jetting additive manufacturing technology

Gaytan

Cadena

Karim

et al. 2015

Ceramics International

192

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Fabrication of barium titanate (BaTiO 3 ) specimens was accomplished with binder jetting additive manufacturing, and build parameters (e.g. binder saturation and layer thickness) and sintering profiles were modified to optimize the density achieved and the crystal structures obtained in the 3D printed parts. Surface and cross sectional grain morphology was characterized by scanning electron microscopy (SEM) revealing grain growth on localized areas of BTO fabricated specimens after sintering. Crystal structure was analyzed by X-ray diffraction (XRD) where the presence of a hexagonal phase was observed for 2 BaTiO 3 only when sintered at 1400ºC. The dielectric constant of the fabricated BaTiO 3 specimens sintered at 1260ºC was obtained by using a K u -band wave-guide and vector network analyzer setup in which the relative permittivity was measured from 8.6 to 6.23 for a frequency range of 12.4 to 18 GHz, respectively. When sintered at 1400ºC for 4 hours, a density of 3.93 g/cm 3 was obtained, which corresponds to 65.2% of the theoretical density.Piezoelectric properties exhibited a d 33 value of 74.1 for specimens also sintered at 1400ºC.Results reported in this paper demonstrate the feasibility of BTO as a binder jetting material for 3D printed dielectric structures, ceramic capacitors and gas and pressure sensors.

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Section: Introductionmentioning

confidence: 99%

Fabrication of barium titanate by binder jetting additive manufacturing technology

Gaytan

Cadena

Karim

et al. 2015

Ceramics International

192

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“…Three pellets were shaped at different compacting pressures, while the temperature and duration of the sintering were taken from the literature. [19][20][21][22][23] The geometric density of the pellets was 84-86 % of the theoretical value of 6.01 g/cm 3 ( Table 1) and it naturally rose with the increase in the compaction pressure. In addition to the BaTiO 3, the XRD analysis showed the presence of an impurity phase in every pellet at 2q = 29° ( Figure 5), which is a complex barium aluminate titanate originating from the milling process.…”

Section: Resultsmentioning

confidence: 86%

Preparation and dielectric properties of thermo-vaporous BaTiO3 ceramics

Kholodkova¹,

Danchevskaya²,

Popova³

2015

Mater. Tehnol.

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A crystalline BaTiO3 powder was synthesized at 350°C for 0-20 h from TiO2 (> 99 % purity) and BaO (> 98 % purity) with water vapour acting as the reaction media. According to the XRD and SEM results, the BaTiO3 synthesized for 3 h proved to be the most adequate raw material for ferroelectric ceramics among the obtained samples as long as it consisted of pure crystalline sphere-shaped BaTiO3 particles with the average size of 156 nm. Pellets were pressed at (100, 150 and 200) MPa and sintered at 1300°C for 1 h. The influence of the compacting pressure on the dielectric characteristics of BaTiO3 ceramics was studied by monitoring the permittivity and loss-tangent values of the pellets at 20 Hz-2 MHz. Keywords: barium titanate, thermo-vaporous synthesis, microstructure, dielectric ceramics Kristalni prah BaTiO3 je bil sintetiziran pri 350°C od 0 do 20 h iz TiO2 (~istost: > 99 %) in BaO (~istost: > 98 %) z vodno paro kot reakcijski medij. Iz rentgenogramov in SEM-posnetkov izhaja, da je BaTiO3, sintetiziran 3 h, najprimernej{a surovina med vsemi vzorci za feroelektri~no keramiko, dokler sestoji iz~istih kristalnih okroglih delcev BaTiO3 s povpre~no velikostjo 156 nm. Peleti so bili stiskani pri (100, 150 in 200) MPa in sintrani 1 h pri temperaturi 1300°C. Vpliv tlaka pri stiskanju na dielektri~ne lastnosti keramike BaTiO3 je bil preiskovana s spremljanjem permitivnosti in velikosti izgube tg d peletov pri 20 Hz-2 MHz. Klju~ne besede: barijev titanat, termo-parno porozna sinteza, mikrostruktura, dielektri~na keramika

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“…9–12 Among them, the aqueous zinc ion batteries (AZIBs) possess a high theoretical capacity (820 mA h g −1 ), showing a certain development prospect. 13,14 To date, many cathode materials, such as manganese-based materials, 15,16 Prussian blue analogues, 17,18 and vanadium-based materials, 19,20 have been reported for AZIBs.…”

Section: Introductionmentioning

confidence: 99%

Rose-shaped VS₂nanosheets as cathode materials for rechargeable zinc ion batteries

Zhao

Liu

2023

CrystEngComm

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Grain-controlled barium titanate ceramics prepared from high-gravity reactive precipitation process powder

Cited by 23 publications

References 15 publications

Fabrication of barium titanate by binder jetting additive manufacturing technology

Fabrication of barium titanate by binder jetting additive manufacturing technology

Preparation and dielectric properties of thermo-vaporous BaTiO3 ceramics

Rose-shaped VS₂nanosheets as cathode materials for rechargeable zinc ion batteries

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Grain-controlled barium titanate ceramics prepared from high-gravity reactive precipitation process powder

Cited by 23 publications

References 15 publications

Fabrication of barium titanate by binder jetting additive manufacturing technology

Fabrication of barium titanate by binder jetting additive manufacturing technology

Preparation and dielectric properties of thermo-vaporous BaTiO3 ceramics

Rose-shaped VS2nanosheets as cathode materials for rechargeable zinc ion batteries

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Rose-shaped VS₂nanosheets as cathode materials for rechargeable zinc ion batteries