Facile Preparation, Microstructure and Dielectric Properties of La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub> Perovskite High-Entropy Ceramics
Preparation and properties of La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub> high-entropy ceramics are investigated. La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>F...
| Published in: | Crystals |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Online Access: | https://www.mdpi.com/2073-4352/12/12/1756 |
| _version_ | 1850345529691602944 |
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| author | Zhifeng Tian Ying Zhang Junzhan Zhang Peng Shi |
| author_facet | Zhifeng Tian Ying Zhang Junzhan Zhang Peng Shi |
| author_sort | Zhifeng Tian |
| collection | DOAJ |
| container_title | Crystals |
| description | Preparation and properties of La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub> high-entropy ceramics are investigated. La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub> high-entropy ceramics are prepared by a traditional two-step solid-state reaction method in air. La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub> single-phase powders are synthesized by calcining the mixed oxides at 1000 °C for 20 h. The high-entropy ceramics are sintered at 1350–1650 °C in a muffle furnace for 4 h by using the above powders. The phase compositions of the high-entropy ceramics at different temperatures are characterized by X-ray diffraction (XRD) with Cu Kα radiation. A field-emission scanning electron microscope with energy-dispersive spectroscopy (EDS) is used to observe the microstructures and analyze the elemental distributions. The hardness and dielectric properties are measured and discussed. |
| format | Article |
| id | doaj-art-e3fa992ca85648cdb59cbf285f422ed1 |
| institution | Directory of Open Access Journals |
| issn | 2073-4352 |
| language | English |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| spelling | doaj-art-e3fa992ca85648cdb59cbf285f422ed12025-08-19T23:12:17ZengMDPI AGCrystals2073-43522022-12-011212175610.3390/cryst12121756Facile Preparation, Microstructure and Dielectric Properties of La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub> Perovskite High-Entropy CeramicsZhifeng Tian0Ying Zhang1Junzhan Zhang2Peng Shi3College of Materials Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaCollege of Materials Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaCollege of Materials Science and Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, ChinaElectronic Materials Research Laboratory, Key Laboratory of the Ministry of Education & International Center for Dielectric Research, School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an 710049, ChinaPreparation and properties of La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub> high-entropy ceramics are investigated. La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub> high-entropy ceramics are prepared by a traditional two-step solid-state reaction method in air. La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub> single-phase powders are synthesized by calcining the mixed oxides at 1000 °C for 20 h. The high-entropy ceramics are sintered at 1350–1650 °C in a muffle furnace for 4 h by using the above powders. The phase compositions of the high-entropy ceramics at different temperatures are characterized by X-ray diffraction (XRD) with Cu Kα radiation. A field-emission scanning electron microscope with energy-dispersive spectroscopy (EDS) is used to observe the microstructures and analyze the elemental distributions. The hardness and dielectric properties are measured and discussed.https://www.mdpi.com/2073-4352/12/12/1756La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub>perovskitehigh-entropy ceramicshardnessdielectric properties |
| spellingShingle | Zhifeng Tian Ying Zhang Junzhan Zhang Peng Shi Facile Preparation, Microstructure and Dielectric Properties of La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub> Perovskite High-Entropy Ceramics La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub> perovskite high-entropy ceramics hardness dielectric properties |
| title | Facile Preparation, Microstructure and Dielectric Properties of La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub> Perovskite High-Entropy Ceramics |
| title_full | Facile Preparation, Microstructure and Dielectric Properties of La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub> Perovskite High-Entropy Ceramics |
| title_fullStr | Facile Preparation, Microstructure and Dielectric Properties of La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub> Perovskite High-Entropy Ceramics |
| title_full_unstemmed | Facile Preparation, Microstructure and Dielectric Properties of La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub> Perovskite High-Entropy Ceramics |
| title_short | Facile Preparation, Microstructure and Dielectric Properties of La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub> Perovskite High-Entropy Ceramics |
| title_sort | facile preparation microstructure and dielectric properties of la cr sub 0 2 sub mn sub 0 2 sub fe sub 0 2 sub co sub 0 2 sub ni sub 0 2 sub o sub 3 sub perovskite high entropy ceramics |
| topic | La(Cr<sub>0.2</sub>Mn<sub>0.2</sub>Fe<sub>0.2</sub>Co<sub>0.2</sub>Ni<sub>0.2</sub>)O<sub>3</sub> perovskite high-entropy ceramics hardness dielectric properties |
| url | https://www.mdpi.com/2073-4352/12/12/1756 |
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