Effect of sintering temperature on structural and dielectric properties of Bi and Li co-substituted barium titanate ceramic

Alkathy, Mahmoud S.; Gayam, Rahul; Raju, K. C. James

doi:10.1016/j.ceramint.2016.06.194

Cited by 38 publications

(8 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is also observed that at the same holding time, the remnant polarization of the BZT ceramics sintered for 6 and 8 h decreases as the sintering temperature increases. This result is inconsistent with that reported by Alkathy et al [15]. It is well known that when grains are larger, fraction of grain boundaries is lower.…”

Section: Ferroelectric Propertiescontrasting

confidence: 83%

“…In recent years, many researchers have studied the effects of sintering temperatures and holding time on the structure and dielectric properties of BZT ceramics [7][8][9][10][11][12][13][14][15]. It was reported that the maximum of dielectric constant of BZT ceramics increased from 3600 to 5800 as the sintering temperature increased from 1400 to 1550°C.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of sintering temperature and holding time on the microstructure and electric properties of Ba(Zr0.3Ti0.7)O3 ceramics

Zhang

Chen

et al. 2018

PAC

View full text Add to dashboard Cite

Ba(Zr 0.3 Ti 0.7)O 3 (BZT) ceramics was prepared by using conventional solid state reaction. The effects of sintering temperature and holding time on the crystal structure, surface morphology, dielectric, ferroelectric and piezoelectric properties of the BZT ceramics were systematically investigated. X-ray diffraction (XRD) results confirm single cubic perovskite phase in all the sintered samples. Microstructure analysis using scanning electron microscopy (SEM) reveals that the grain sizes increase with increasing the sintering temperature. Dielectric spectroscopy performed in the range of 20 Hz to 2 MHz at room temperature shows that the dielectric constant increases with the sintering temperature and the dielectric constant of the BZT ceramics sintered at 1400°C for 8 h is around 11500. The ferroelectric hysteresis loops show that the coercive field decreases with the holding time, while the remnant polarization does not change obviously. The maximum strain is 0.023% for the sample sintered at 1400°C for 4 h. It is found that the maximum value of the direct piezoelectric coefficient (d 33) of the BZT ceramics sintered at 1400°C for 8 h measured at room temperature is 36.7 pC/N.

show abstract

Section: Ferroelectric Propertiescontrasting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Effects of sintering temperature and holding time on the microstructure and electric properties of Ba(Zr0.3Ti0.7)O3 ceramics

Zhang

Chen

et al. 2018

PAC

View full text Add to dashboard Cite

show abstract

“…At lower frequency of operation, all four kinds of polarizations namely ionic, electronic, dipolar and interfacial polarization contribute to the total polarization of the material and this result in an enhancement in dielectric constant value. At higher operating frequency, some of the polarizations cease to contribute, and therefore total polarization inside the material consist of only interfacial and dipolar polarization and hence at higher frequency dielectric constant decreases . Similar behavior has been reported in many ferroelectric materials …”

Section: Resultssupporting

confidence: 77%

“…Moreover, the dielectric constant of the samples displays an inverse dependence on frequency, which is the inherent characteristics of most of the dielectric and ferroelectric materials . The Maxwell‐Wagner multi‐layer model for space charge or interfacial polarization can explain the behavior of dielectric constant with variation in frequency .…”

Section: Resultsmentioning

confidence: 99%

Enhanced structural, dielectric, ferroelectric, and piezoelectric properties of (1−x)Ba_0.9Sr_0.1TiO₃–(x)Ba_0.7Ca_0.3TiO₃ ceramics derived using mechano‐chemical activation technique

et al. 2017

View full text Add to dashboard Cite

The effect of Ba 0.7 Ca 0.3 TiO 3 (BCT) substitution on the structural, dielectric, ferroelectric, and piezoelectric properties of mechano-chemically synthesized lead-free (1Àx)Ba 0.9 Sr 0.1 TiO 3 -(x)Ba 0.7 Ca 0.3 TiO 3 (x=0.0, 0.10, 0.20, 0.35, and 0.50) ceramics have been investigated. XRD patterns confirms the formation of tetragonal phase with P4mm space group. The results indicate a strong influence of BCT substitution on the structural and electrical properties of Ba 0.9 Sr 0.1 TiO 3 (BST) ceramic. BST-BCT ceramic for x=0.35 have shown high dielectric constant e m~2 1 800, high remnant polarization P r~1 0.16 lC/cm 2 , large piezoelectric charge constant D 33~2 93 pC/N, large piezoelectric voltage constant g 33~5 .80 mVÁm/N, and highest dielectric breakdown strength E bd~2 24 kV/cm among the five synthesized samples. The correlation between structural, dielectric, ferroelectric, and piezoelectric properties of the BST ceramic with increasing BCT content have been systematically described on the basis of domain wall motion and grain size effect. K E Y W O R D S dielectric, energy storage, ferroelectric, microstructure, piezoelectric

show abstract

“…Barium titanate (BaTiO 3 ) is probably the most widely studied and used multifunctional ferroelectric ceramic. A great deal of experimental and theoretical researches on both aliovalent and isovalent doping in BaTiO 3 has produced great insights, which are constantly growing. ,,,,,− …”

Section: Ferroelectricsmentioning

confidence: 99%

Defects and Aliovalent Doping Engineering in Electroceramics

et al. 2020

View full text Add to dashboard Cite

Since the positive influences of defects on the performance of electroceramics were discovered, investigations concerning on defects and aliovalent doping routes have grown rapidly in the fields of inorganic chemistry and condensed matter physics. In this article, we summarized the types of defects in electroceramics as well as characterization tools of defects and highlighted the effects of intrinsic and extrinsic defects on the material performances with the emphasis on dielectric, ferroelectric, and piezoelectric properties. We mainly introduced defect related theoretical simulation and experimental results in several typical incipient ferroelectrics, ferroelectrics, and antiferroelectrics. Hence, the influences of defects on the crystal lattice were summed up, and then the main physical mechanisms were highlighted. Particularly, the performance enhancements of aliovalently doped electroceramics were also evaluated and reviewed. Finally, the outlook and challenges were discussed on the basis of their current developments. This article covers not only an overview of the state-of-the-art advances of defects and aliovalent doping routes in electroceramics but also the future prospects that may open another window to tune the electrical performance of electroceramics via intentionally introducing certain defects.

show abstract

Effect of sintering temperature on structural and dielectric properties of Bi and Li co-substituted barium titanate ceramic

Cited by 38 publications

References 33 publications

Effects of sintering temperature and holding time on the microstructure and electric properties of Ba(Zr0.3Ti0.7)O3 ceramics

Effects of sintering temperature and holding time on the microstructure and electric properties of Ba(Zr0.3Ti0.7)O3 ceramics

Enhanced structural, dielectric, ferroelectric, and piezoelectric properties of (1−x)Ba_0.9Sr_0.1TiO₃–(x)Ba_0.7Ca_0.3TiO₃ ceramics derived using mechano‐chemical activation technique

Defects and Aliovalent Doping Engineering in Electroceramics

Contact Info

Product

Resources

About

Effect of sintering temperature on structural and dielectric properties of Bi and Li co-substituted barium titanate ceramic

Cited by 38 publications

References 33 publications

Effects of sintering temperature and holding time on the microstructure and electric properties of Ba(Zr0.3Ti0.7)O3 ceramics

Effects of sintering temperature and holding time on the microstructure and electric properties of Ba(Zr0.3Ti0.7)O3 ceramics

Enhanced structural, dielectric, ferroelectric, and piezoelectric properties of (1−x)Ba0.9Sr0.1TiO3–(x)Ba0.7Ca0.3TiO3 ceramics derived using mechano‐chemical activation technique

Defects and Aliovalent Doping Engineering in Electroceramics

Contact Info

Product

Resources

About

Enhanced structural, dielectric, ferroelectric, and piezoelectric properties of (1−x)Ba_0.9Sr_0.1TiO₃–(x)Ba_0.7Ca_0.3TiO₃ ceramics derived using mechano‐chemical activation technique