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

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

doi:10.1016/j.jeurceramsoc.2019.02.015

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

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

Onderzoeksoutput: Article › Academic › peer review

Samenvatting

This work examines the relaxor behavior of lead-free ceramic (1 − x)Na0.5Bi0.5TiO3–xCaTiO3 systems. A stable rhombohedral (R3c) phase is detected at room temperature for all compositions by XRD and Raman spectroscopy. Relaxor behavior was observed in the temperature range 300 K - 400 K for all materials. Ceramics exhibit normal ferroelectric properties at room temperature, and then they develop relaxor characteristics with increasing temperature showing the same dispersive properties. This work quantifies the relaxor phenomenon at low temperature. For instance, the maximum temperature of relaxor and the order of dispersion were determined at the strongest dispersion. Finally, the substitution by low CT concentration unaltered the relaxor behavior at low temperature.

Originele taal-2	English
Pagina's (van-tot)	2297-2303
Aantal pagina's	7
Tijdschrift	Journal of the European Ceramic Society
Volume	39
Nummer van het tijdschrift	7
DOI's	https://doi.org/10.1016/j.jeurceramsoc.2019.02.015
Status	Published - jul. 2019
Extern gepubliceerd	Ja

Keywords

NBT-CT
diëlektrische eigenschappen
relaxor gedrag
volgorde van verspreiding

Toegang tot document

10.1016/j.jeurceramsoc.2019.02.015

Andere bestanden en links

hal-03487170

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
Detection of morphotropic phase boundary in A-site/Ca-substituted Na0. 5Bi0. 5TiO3 complex oxides ferroelectric system
Roukos, R., Abou Dargham, S., Romanos, J. & Chaumont, D., 2020, In: Journal of Alloys and Compounds. 840
Onderzoeksoutput: Article › Academic › peer review

Open Access
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

Citeer dit

@article{4a315a0e25924053b90d4371964a5a41,

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

abstract = "This work examines the relaxor behavior of lead-free ceramic (1 − x)Na0.5Bi0.5TiO3–xCaTiO3 systems. A stable rhombohedral (R3c) phase is detected at room temperature for all compositions by XRD and Raman spectroscopy. Relaxor behavior was observed in the temperature range 300 K - 400 K for all materials. Ceramics exhibit normal ferroelectric properties at room temperature, and then they develop relaxor characteristics with increasing temperature showing the same dispersive properties. This work quantifies the relaxor phenomenon at low temperature. For instance, the maximum temperature of relaxor and the order of dispersion were determined at the strongest dispersion. Finally, the substitution by low CT concentration unaltered the relaxor behavior at low temperature.",

keywords = "NBT-CT, di{\"e}lektrische eigenschappen, relaxor gedrag, volgorde van verspreiding, NBT-CT, dielectric properties, relaxor behavior, order of dispersion",

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

year = "2019",

month = jul,

doi = "10.1016/j.jeurceramsoc.2019.02.015",

language = "English",

volume = "39",

pages = "2297--2303",

journal = "Journal of the European Ceramic Society",

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T1 - Quantification of relaxor behavior in (1− x) Na0. 5Bi0. 5TiO3–xCaTiO3 lead-free ceramics system

AU - Roukos, Roy

AU - Romanos, Jimmy

AU - Abou Dargham, Sara

AU - Chaumont, Denis

PY - 2019/7

Y1 - 2019/7

N2 - This work examines the relaxor behavior of lead-free ceramic (1 − x)Na0.5Bi0.5TiO3–xCaTiO3 systems. A stable rhombohedral (R3c) phase is detected at room temperature for all compositions by XRD and Raman spectroscopy. Relaxor behavior was observed in the temperature range 300 K - 400 K for all materials. Ceramics exhibit normal ferroelectric properties at room temperature, and then they develop relaxor characteristics with increasing temperature showing the same dispersive properties. This work quantifies the relaxor phenomenon at low temperature. For instance, the maximum temperature of relaxor and the order of dispersion were determined at the strongest dispersion. Finally, the substitution by low CT concentration unaltered the relaxor behavior at low temperature.

AB - This work examines the relaxor behavior of lead-free ceramic (1 − x)Na0.5Bi0.5TiO3–xCaTiO3 systems. A stable rhombohedral (R3c) phase is detected at room temperature for all compositions by XRD and Raman spectroscopy. Relaxor behavior was observed in the temperature range 300 K - 400 K for all materials. Ceramics exhibit normal ferroelectric properties at room temperature, and then they develop relaxor characteristics with increasing temperature showing the same dispersive properties. This work quantifies the relaxor phenomenon at low temperature. For instance, the maximum temperature of relaxor and the order of dispersion were determined at the strongest dispersion. Finally, the substitution by low CT concentration unaltered the relaxor behavior at low temperature.

KW - NBT-CT

KW - diëlektrische eigenschappen

KW - relaxor gedrag

KW - volgorde van verspreiding

KW - NBT-CT

KW - dielectric properties

KW - relaxor behavior

KW - order of dispersion

U2 - 10.1016/j.jeurceramsoc.2019.02.015

DO - 10.1016/j.jeurceramsoc.2019.02.015

M3 - Article

SN - 0955-2219

VL - 39

SP - 2297

EP - 2303

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 7

ER -

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

Samenvatting

Keywords

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

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

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

Citeer dit