Detection of morphotropic phase boundary in A-site/Ca-substituted Na0. 5Bi0. 5TiO3 complex oxides ferroelectric system

Roy Roukos; Sara  Abou Dargham; Jimmy Romanos; Denis Chaumont

doi:10.1016/j.jallcom.2020.155509

Detection of morphotropic phase boundary in A-site/Ca-substituted Na0. 5Bi0. 5TiO3 complex oxides ferroelectric system

Roy Roukos
, Sara Abou Dargham
, Jimmy Romanos
, Denis Chaumont

Sensors and Smart Systems

Lebanese American University (LAU - Lebanon)
Université de Bourgogne - Laboratoire Interdisciplinaire Carnot de Bourgogne

Onderzoeksoutput: Article › Academic › peer review

Samenvatting

Vibrational and structural properties of lead-free piezoelectric (1-x)Na0.5Bi0.5TiO3–xCaTiO3 (0 < x < 1.00) solid solutions have been investigated using Raman spectroscopy and X-ray diffraction. Different anomalies were detected and analyzed taking into consideration the phase transition from rhombohedral to orthorhombic phase at room temperature. All Raman bands were interpreted through the variation in the peak positions (frequency) and the corresponding half-widths at half maximum (HWHM) as a function of x. XRD used as a complementary technique to Raman spectroscopy, showed that the rhombohedral – orthorhombic phase transition went gradually through an intermediate phase consisting of a mixture of rhombohedral (R3c) and orthorhombic (Pnma) structures and that the fraction of orthorhombic phase increased with CT composition. The results show that the morphotropic phase boundary (MPB) is located between 0.09 and 0.15.

Originele taal-2	English
Tijdschrift	Journal of Alloys and Compounds
Volume	840
DOI's	https://doi.org/10.1016/j.jallcom.2020.155509
Status	Published - 2020

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Keywords

morfotrope fase grens (MPB)
raman-spectroscopie
röntgendiffractie
NBT-CT
ferro-elektrisch

Research Focus Areas Hanze University of Applied Sciences

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Research Focus Areas Research Centre or Centre of Expertise

Artificial Intelligence
Cyberfysical systems

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ICT & Media
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Techniek

Toegang tot document

10.1016/j.jallcom.2020.155509

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hal-03490800f

3 Article

Evidence of a stable tetragonal (P4bm) phase in rhombohedral (R3c) complex perovskite (Na1/2Bi1/2)1-xCaxTiO3 lead-free piezoelectric materials
Roukos, R., Romanos, J., Abou Dargham, S. & Chaumont, D., feb. 2023, In: Materials Science and Engineering: B. 288, 116196.
Onderzoeksoutput: Article › Academic › peer review
Complex structural contribution of the morphotropic phase boundary in Na0. 5Bi0. 5TiO3-CaTiO3 system
Roukos, R., Abou Dargham, S., Romanos, J. & Chaumont, D., mrt. 2019, In: Ceramics International. 45, 4, blz. 4467-4473 7 blz.
Onderzoeksoutput: Article › Academic › peer review

Open Access
Quantification of relaxor behavior in (1− x) Na0. 5Bi0. 5TiO3–xCaTiO3 lead-free ceramics system
Roukos, R., Romanos, J., Abou Dargham, S. & Chaumont, D., jul. 2019, In: Journal of the European Ceramic Society. 39, 7, blz. 2297-2303 7 blz.
Onderzoeksoutput: Article › Academic › peer review

Open Access

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Abou Dargham, S. (Attendee)
29 nov. 2024
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@article{0674aecdea7f46828f3d24c71e147fe6,

title = "Detection of morphotropic phase boundary in A-site/Ca-substituted Na0. 5Bi0. 5TiO3 complex oxides ferroelectric system",

abstract = "Vibrational and structural properties of lead-free piezoelectric (1-x)Na0.5Bi0.5TiO3–xCaTiO3 (0 < x < 1.00) solid solutions have been investigated using Raman spectroscopy and X-ray diffraction. Different anomalies were detected and analyzed taking into consideration the phase transition from rhombohedral to orthorhombic phase at room temperature. All Raman bands were interpreted through the variation in the peak positions (frequency) and the corresponding half-widths at half maximum (HWHM) as a function of x. XRD used as a complementary technique to Raman spectroscopy, showed that the rhombohedral – orthorhombic phase transition went gradually through an intermediate phase consisting of a mixture of rhombohedral (R3c) and orthorhombic (Pnma) structures and that the fraction of orthorhombic phase increased with CT composition. The results show that the morphotropic phase boundary (MPB) is located between 0.09 and 0.15.",

keywords = "morfotrope fase grens (MPB), raman-spectroscopie, r{\"o}ntgendiffractie, NBT-CT, ferro-elektrisch, morphotropic phase boundary (MPB), raman spectroscopy, x-ray diffraction, NBT-CT, ferroelectric",

author = "Roy Roukos and \{Abou Dargham\}, Sara and Jimmy Romanos and Denis Chaumont",

year = "2020",

doi = "10.1016/j.jallcom.2020.155509",

language = "English",

volume = "840",

journal = "Journal of Alloys and Compounds",

}

TY - JOUR

T1 - Detection of morphotropic phase boundary in A-site/Ca-substituted Na0. 5Bi0. 5TiO3 complex oxides ferroelectric system

AU - Roukos, Roy

AU - Abou Dargham, Sara

AU - Romanos, Jimmy

AU - Chaumont, Denis

PY - 2020

Y1 - 2020

N2 - Vibrational and structural properties of lead-free piezoelectric (1-x)Na0.5Bi0.5TiO3–xCaTiO3 (0 < x < 1.00) solid solutions have been investigated using Raman spectroscopy and X-ray diffraction. Different anomalies were detected and analyzed taking into consideration the phase transition from rhombohedral to orthorhombic phase at room temperature. All Raman bands were interpreted through the variation in the peak positions (frequency) and the corresponding half-widths at half maximum (HWHM) as a function of x. XRD used as a complementary technique to Raman spectroscopy, showed that the rhombohedral – orthorhombic phase transition went gradually through an intermediate phase consisting of a mixture of rhombohedral (R3c) and orthorhombic (Pnma) structures and that the fraction of orthorhombic phase increased with CT composition. The results show that the morphotropic phase boundary (MPB) is located between 0.09 and 0.15.

AB - Vibrational and structural properties of lead-free piezoelectric (1-x)Na0.5Bi0.5TiO3–xCaTiO3 (0 < x < 1.00) solid solutions have been investigated using Raman spectroscopy and X-ray diffraction. Different anomalies were detected and analyzed taking into consideration the phase transition from rhombohedral to orthorhombic phase at room temperature. All Raman bands were interpreted through the variation in the peak positions (frequency) and the corresponding half-widths at half maximum (HWHM) as a function of x. XRD used as a complementary technique to Raman spectroscopy, showed that the rhombohedral – orthorhombic phase transition went gradually through an intermediate phase consisting of a mixture of rhombohedral (R3c) and orthorhombic (Pnma) structures and that the fraction of orthorhombic phase increased with CT composition. The results show that the morphotropic phase boundary (MPB) is located between 0.09 and 0.15.

KW - morfotrope fase grens (MPB)

KW - raman-spectroscopie

KW - röntgendiffractie

KW - NBT-CT

KW - ferro-elektrisch

KW - morphotropic phase boundary (MPB)

KW - raman spectroscopy

KW - x-ray diffraction

KW - NBT-CT

KW - ferroelectric

U2 - 10.1016/j.jallcom.2020.155509

DO - 10.1016/j.jallcom.2020.155509

M3 - Article

VL - 840

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

Detection of morphotropic phase boundary in A-site/Ca-substituted Na0. 5Bi0. 5TiO3 complex oxides ferroelectric system

Samenvatting

Duurzame ontwikkelingsdoelstellingen van de VN

Keywords

Research Focus Areas Hanze University of Applied Sciences

Research Focus Areas Research Centre or Centre of Expertise

Publinova thema's

Toegang tot document

Andere bestanden en links

Vingerafdruk

Onderzoekersoutput

Evidence of a stable tetragonal (P4bm) phase in rhombohedral (R3c) complex perovskite (Na1/2Bi1/2)1-xCaxTiO3 lead-free piezoelectric materials

Complex structural contribution of the morphotropic phase boundary in Na0. 5Bi0. 5TiO3-CaTiO3 system

Quantification of relaxor behavior in (1− x) Na0. 5Bi0. 5TiO3–xCaTiO3 lead-free ceramics system

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ChemAI

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