Molten salt assisted growth of lead-free BCZT crystals: effects of synthesis conditions and sintering on structural and electrical properties

Shree, K Jai; Das, Dibakar

doi:10.1007/s10854-019-01452-4

Cited by 6 publications

(3 citation statements)

References 22 publications

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“…Our results showed that preparing high quality BCZT power by a sol-gel technique has effectively improved the performances of lead-free glass-ceramics of (1 − x)BCZT-xBBS with appropriate compositions. Comparing with previous works by conventional solid-state sintering method [12,13,[21][22][23][24], the samples we prepared have the advantages of relatively high breakdown electric field and energy storage density and relatively low sintering temperature. The improved densification behaviour in these material samples has potential benefits in high-voltage insulation and engineering dielectric energy storage devices.…”

Section: Introductionmentioning

confidence: 98%

“…By doping BCZT with Tb, Lu et al could slightly improve the energy storage density of the samples, but not the breakdown electric field [22]. The effects of NaBr, NaCl, KCl, Na 2 SO 4 and NaCl-KCl on the structural and polarization properties of BCZT revealed the decrease of both residual polarization and breakdown electric fields [23]. By adding CaO-B 2 O 2 glass powder into BCZT [21], Lai et al improved the energy storage density; however, the breakdown electric field of the samples remained low.…”

Section: Introductionmentioning

confidence: 99%

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Dielectric and energy storage properties of Bi ₂ O ₃ -B ₂ O ₃ -SiO ₂ doped Ba _0.85 Ca _0.15 Zr _0.1 Ti _0.9 O ₃ lead-free glass-ceramics

Chen

Meng

et al. 2020

R. Soc. open sci.

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A sol–gel method is employed for preparing high quality lead-free glass-ceramic samples (1 − x )BCZT- x BBS—incorporating Ba 0.85 Ca 0.15 Zr 0.1 Ti 0.9 O 3 (BCZT) powder and Bi 2 O 3 -B 2 O 3 -SiO 2 (BBS) glass-doped additives with different values of x ( x = 0, 0.05, 0.1, 0.15). Systematic investigations are performed to comprehend the structural, dielectric and energy storage characteristics using X-ray diffraction, field-emission scanning electron microscopy, impedance and ferroelectric analyser methods. With appropriate BBS doping ( x ), many fundamental traits including breakdown strength, dielectric loss and energy storage density have shown significant improvements. Low doping-level samples x < 0.1 have retained the pure perovskite phase while a second glass phase appeared in samples with x ≥ 0.1. As the doping level (0.1 ≥ x > 0) is increased, the average grain size decreased to become better homogeneous materials with improved breakdown energy strengths. Excessive addition of BBS ( x = 0.15) causes negative effects on microstructures and other traits. The glass-ceramic sample 0.95BCZT-0.05BBS exhibits excellent dielectric permittivity and temperature stability, with the highest energy storage density of 0.3907 J cm −3 at 130 kV cm −1 . These results provide good reference to develop lead-free ceramics of high energy storage density.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Dielectric and energy storage properties of Bi ₂ O ₃ -B ₂ O ₃ -SiO ₂ doped Ba _0.85 Ca _0.15 Zr _0.1 Ti _0.9 O ₃ lead-free glass-ceramics

Chen

Meng

et al. 2020

R. Soc. open sci.

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“…Normally, the (BaCa)(HfTi)O 3 ceramics were prepared by solid-state sintering method and the sintering temperature was 1450°C or above to obtain high piezoelectric performance [8,10,13]. Since ceramics processing affects physical properties greatly [14][15][16], in our previous work [17] we prepared (Ba 0.85 Ca 0.15 )(Hf 0.1 Ti 0.9 )O 3 (BCHT) ceramics via powder injection moulding process using polyethylene glycol, polyvinyl butyral and polyoxymethylene as injection binders. Although improved electrical properties were obtained, the used injection binder system was complex and processing (including internal mixing, water degreasing, decarbonization burning and sintering) was complicated.…”

Section: Introductionmentioning

confidence: 99%

Doping effects in (Ba0.85Ca0.15)(Hf0.1Ti0.9)O3 lead-free piezoelectric ceramics prepared via powder injection moulding using simple binder

Wang

Fang

Zhang

et al. 2021

PAC

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To improve densification of the (Ba0.85Ca0.15)(Hf0.1Ti0.9)O3 (BCHT) ceramics prepared via powder injection moulding, MnO2 and Li2CO3 were used as sintering aids. The BCHT ceramics doped with different Mn- and Li-amount prepared by powder injection moulding in which paraffin was used as injection binder, have rather pure perovskite structure with complicated polymorphic ferroelectric phase coexistence. Polyhedral grains combined with nearly round shape grains with increased relative density and larger gains size were obtained at appropriate doping amount, related to the formation of liquid phase during sintering and increased mobility of ions due to the generation of point defects caused by heterovalent cations doping. TheMn- and Li-doped BCHT ceramics are displacement driven ferroelectrics with apparent diffused transition characteristic at different extent, relating to the morphotropic phase boundary composition and the variation of point defects induced by doping. Comparable or surpassing electrical performance was acquired, especially the dielectric breakdown strength was increased due to the improved sinterability. With appropriate doping amount, piezoelectricity larger than 300 pC/N can be obtained in the Mn- and Li-doped BCHT ceramics poled under low electric field.

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High-temperature stability of Ba0.99Ca0.01Zr0.02Ti0.98O3-doped LiTaO3 lead-free ceramics

Zhang

et al. 2022

J Mater Sci: Mater Electron

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Molten salt assisted growth of lead-free BCZT crystals: effects of synthesis conditions and sintering on structural and electrical properties

Cited by 6 publications

References 22 publications

Dielectric and energy storage properties of Bi ₂ O ₃ -B ₂ O ₃ -SiO ₂ doped Ba _0.85 Ca _0.15 Zr _0.1 Ti _0.9 O ₃ lead-free glass-ceramics

Dielectric and energy storage properties of Bi ₂ O ₃ -B ₂ O ₃ -SiO ₂ doped Ba _0.85 Ca _0.15 Zr _0.1 Ti _0.9 O ₃ lead-free glass-ceramics

Doping effects in (Ba0.85Ca0.15)(Hf0.1Ti0.9)O3 lead-free piezoelectric ceramics prepared via powder injection moulding using simple binder

High-temperature stability of Ba0.99Ca0.01Zr0.02Ti0.98O3-doped LiTaO3 lead-free ceramics

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Molten salt assisted growth of lead-free BCZT crystals: effects of synthesis conditions and sintering on structural and electrical properties

Cited by 6 publications

References 22 publications

Dielectric and energy storage properties of Bi 2 O 3 -B 2 O 3 -SiO 2 doped Ba 0.85 Ca 0.15 Zr 0.1 Ti 0.9 O 3 lead-free glass-ceramics

Dielectric and energy storage properties of Bi 2 O 3 -B 2 O 3 -SiO 2 doped Ba 0.85 Ca 0.15 Zr 0.1 Ti 0.9 O 3 lead-free glass-ceramics

Doping effects in (Ba0.85Ca0.15)(Hf0.1Ti0.9)O3 lead-free piezoelectric ceramics prepared via powder injection moulding using simple binder

High-temperature stability of Ba0.99Ca0.01Zr0.02Ti0.98O3-doped LiTaO3 lead-free ceramics

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Dielectric and energy storage properties of Bi ₂ O ₃ -B ₂ O ₃ -SiO ₂ doped Ba _0.85 Ca _0.15 Zr _0.1 Ti _0.9 O ₃ lead-free glass-ceramics

Dielectric and energy storage properties of Bi ₂ O ₃ -B ₂ O ₃ -SiO ₂ doped Ba _0.85 Ca _0.15 Zr _0.1 Ti _0.9 O ₃ lead-free glass-ceramics