Design of New High Entropy Ceramics in the Pseudo-Binary System RGaO3-R2Ti2O7

Victor Emmanuel Alvarez-Montaño; Francisco Brown; Jorge Mata Ramírez; Subhash Sharma; Ofelia Hernández Negrete; Javier Hernández Paredes; V. E.Alejandro Durán

doi:10.1007/978-3-030-92381-5_53

Design of New High Entropy Ceramics in the Pseudo-Binary System RGaO₃-R₂Ti₂O₇

Victor Emmanuel Alvarez-Montaño^*, Francisco Brown, Jorge Mata Ramírez, Subhash Sharma, Ofelia Hernández Negrete, Javier Hernández Paredes, V. E.Alejandro Durán

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

In the last years, high entropy ceramics (HECs) compounds have attracted significant attention due to their unique chemical compositions and crystal structure which make them potentially useful functional materials. One of them is the RGa_1/3Ti_2/3O_10/3 (R: rare earth element) ceramic layered compound, which comes from the pseudo-binary system RGaO₃–R₂Ti₂O₇ partial solid solution. In this work, we design a single phase of (Lu_0.2Yb_0.2Tm_0.2Er_0.2Ho_0.2)Ga_1/3Ti_2/3O_10/3 high entropic ceramic compound. This compound was synthesized by the solid-state reaction method and employing several thermal treatments at high temperatures. The phase stability was determined using X-ray powder diffractometry analysis (XRD). The morphology and cation distribution in the samples were identified using scanning electron microscopy (SEM) and elemental mapping. In addition, the dielectric behavior of samples exposed under several heating treatments is presented.

Original language	English
Title of host publication	TMS 2022 151st Annual Meeting and Exhibition Supplemental Proceedings
Publisher	Springer Science and Business Media Deutschland GmbH
Pages	571-578
Number of pages	8
ISBN (Print)	9783030923808
DOIs	https://doi.org/10.1007/978-3-030-92381-5_53
State	Published - 2022
Event	151st Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2022 - Anaheim, United States Duration: 27 Feb 2022 → 3 Mar 2022

Publication series

Name	Minerals, Metals and Materials Series
ISSN (Print)	2367-1181
ISSN (Electronic)	2367-1696

Conference

Conference	151st Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2022
Country/Territory	United States
City	Anaheim
Period	27/02/22 → 3/03/22

Bibliographical note

Funding Information:
VEAM thanks the Department of Chemical Engineering and Metallurgy (University of Sonora) for supporting this work. A.D. thanks project PAPIIT-UNAM IN101919.

Publisher Copyright:
© 2022, The Minerals, Metals & Materials Society.

Keywords

High entropy ceramics
Microstructure
Phase stability
RGa/Ti/O

Access to Document

10.1007/978-3-030-92381-5_53

Cite this

Alvarez-Montaño, V. E., Brown, F., Mata Ramírez, J., Sharma, S., Hernández Negrete, O., Hernández Paredes, J., & Durán, V. E. A. (2022). Design of New High Entropy Ceramics in the Pseudo-Binary System RGaO₃-R₂Ti₂O₇. In TMS 2022 151st Annual Meeting and Exhibition Supplemental Proceedings (pp. 571-578). (Minerals, Metals and Materials Series). Springer Science and Business Media Deutschland GmbH. https://doi.org/10.1007/978-3-030-92381-5_53

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abstract = "In the last years, high entropy ceramics (HECs) compounds have attracted significant attention due to their unique chemical compositions and crystal structure which make them potentially useful functional materials. One of them is the RGa1/3Ti2/3O10/3 (R: rare earth element) ceramic layered compound, which comes from the pseudo-binary system RGaO3–R2Ti2O7 partial solid solution. In this work, we design a single phase of (Lu0.2Yb0.2Tm0.2Er0.2Ho0.2)Ga1/3Ti2/3O10/3 high entropic ceramic compound. This compound was synthesized by the solid-state reaction method and employing several thermal treatments at high temperatures. The phase stability was determined using X-ray powder diffractometry analysis (XRD). The morphology and cation distribution in the samples were identified using scanning electron microscopy (SEM) and elemental mapping. In addition, the dielectric behavior of samples exposed under several heating treatments is presented.",

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Alvarez-Montaño, VE , Brown, F, Mata Ramírez, J, Sharma, S, Hernández Negrete, O , Hernández Paredes, J & Durán, VEA 2022, Design of New High Entropy Ceramics in the Pseudo-Binary System RGaO₃-R₂Ti₂O₇. in TMS 2022 151st Annual Meeting and Exhibition Supplemental Proceedings. Minerals, Metals and Materials Series, Springer Science and Business Media Deutschland GmbH, pp. 571-578, 151st Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2022, Anaheim, United States, 27/02/22. https://doi.org/10.1007/978-3-030-92381-5_53

Design of New High Entropy Ceramics in the Pseudo-Binary System RGaO₃-R₂Ti₂O₇. / Alvarez-Montaño, Victor Emmanuel ; Brown, Francisco; Mata Ramírez, Jorge et al.
TMS 2022 151st Annual Meeting and Exhibition Supplemental Proceedings. Springer Science and Business Media Deutschland GmbH, 2022. p. 571-578 (Minerals, Metals and Materials Series).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Brown, Francisco

AU - Mata Ramírez, Jorge

AU - Sharma, Subhash

AU - Hernández Negrete, Ofelia

AU - Hernández Paredes, Javier

AU - Durán, V. E.Alejandro

PY - 2022

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N2 - In the last years, high entropy ceramics (HECs) compounds have attracted significant attention due to their unique chemical compositions and crystal structure which make them potentially useful functional materials. One of them is the RGa1/3Ti2/3O10/3 (R: rare earth element) ceramic layered compound, which comes from the pseudo-binary system RGaO3–R2Ti2O7 partial solid solution. In this work, we design a single phase of (Lu0.2Yb0.2Tm0.2Er0.2Ho0.2)Ga1/3Ti2/3O10/3 high entropic ceramic compound. This compound was synthesized by the solid-state reaction method and employing several thermal treatments at high temperatures. The phase stability was determined using X-ray powder diffractometry analysis (XRD). The morphology and cation distribution in the samples were identified using scanning electron microscopy (SEM) and elemental mapping. In addition, the dielectric behavior of samples exposed under several heating treatments is presented.

AB - In the last years, high entropy ceramics (HECs) compounds have attracted significant attention due to their unique chemical compositions and crystal structure which make them potentially useful functional materials. One of them is the RGa1/3Ti2/3O10/3 (R: rare earth element) ceramic layered compound, which comes from the pseudo-binary system RGaO3–R2Ti2O7 partial solid solution. In this work, we design a single phase of (Lu0.2Yb0.2Tm0.2Er0.2Ho0.2)Ga1/3Ti2/3O10/3 high entropic ceramic compound. This compound was synthesized by the solid-state reaction method and employing several thermal treatments at high temperatures. The phase stability was determined using X-ray powder diffractometry analysis (XRD). The morphology and cation distribution in the samples were identified using scanning electron microscopy (SEM) and elemental mapping. In addition, the dielectric behavior of samples exposed under several heating treatments is presented.

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Alvarez-Montaño VE , Brown F, Mata Ramírez J, Sharma S, Hernández Negrete O , Hernández Paredes J et al. Design of New High Entropy Ceramics in the Pseudo-Binary System RGaO₃-R₂Ti₂O₇. In TMS 2022 151st Annual Meeting and Exhibition Supplemental Proceedings. Springer Science and Business Media Deutschland GmbH. 2022. p. 571-578. (Minerals, Metals and Materials Series). doi: 10.1007/978-3-030-92381-5_53