Temperature stability adjustment of cobalt-doped Li2MgSiO4 ceramic: its' sintering, dielectric, and mechanical properties
The sintering and dielectric properties of (1 − x)Li2Mg0.95Co0.05SiO4 + xTiO2 ceramics created by the solid state reaction method were investigated. X-ray diffraction and energy-dispersive X-ray spectroscopy were used to obtain phase composition of the ceramics, and scanning electron microscopy was...
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Elsevier
2021-09-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785421007201 |
| _version_ | 1818364453853331456 |
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| author | Rui Peng Liang Shi Yongcheng Lu Xiaolei Shi Gang Wang Yuanxun Li Hua Su Daming Chen Yuanzheng He |
| author_facet | Rui Peng Liang Shi Yongcheng Lu Xiaolei Shi Gang Wang Yuanxun Li Hua Su Daming Chen Yuanzheng He |
| author_sort | Rui Peng |
| collection | DOAJ |
| description | The sintering and dielectric properties of (1 − x)Li2Mg0.95Co0.05SiO4 + xTiO2 ceramics created by the solid state reaction method were investigated. X-ray diffraction and energy-dispersive X-ray spectroscopy were used to obtain phase composition of the ceramics, and scanning electron microscopy was used to observe their microstructure. A network analyzer was used to measure dielectric properties, while mechanical, simultaneous-thermal, and dynamic mechanical analyzers were used to obtain mechanical and chemical properties. Li2Mg0.95Co0.05SiO4 (LMCS) and TiO2 co-exist in the composite system. TiO2 addition resulted in decreasing grain size and crystallite size, increasing starting temperature of shrinkage, increasing activation energy, and increasing elasticity and stiffness. A 4%/volume addition of TiO2 and sintering at 1075 °C changed the LMCS τf to 1.57 ppm/°C and resulted in dielectric properties of εr = 6.33 and Q × f = 17,000 GHz (16 GHz) with a relative density equals to 96.13%. |
| first_indexed | 2024-12-13T22:04:37Z |
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| id | doaj.art-c9e67df68644477389ffec289ea886da |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-13T22:04:37Z |
| publishDate | 2021-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-c9e67df68644477389ffec289ea886da2022-12-21T23:29:54ZengElsevierJournal of Materials Research and Technology2238-78542021-09-011413121318Temperature stability adjustment of cobalt-doped Li2MgSiO4 ceramic: its' sintering, dielectric, and mechanical propertiesRui Peng0Liang Shi1Yongcheng Lu2Xiaolei Shi3Gang Wang4Yuanxun Li5Hua Su6Daming Chen7Yuanzheng He8State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, ChinaState Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, ChinaState Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, ChinaState Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, ChinaState Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, ChinaState Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China; Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313001, China; Corresponding author.State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China; Corresponding author.School of Materials Science and Engineering, Hainan University, Haikou 570228, ChinaSichuan University of Science and Engineering, Zigong 643002, ChinaThe sintering and dielectric properties of (1 − x)Li2Mg0.95Co0.05SiO4 + xTiO2 ceramics created by the solid state reaction method were investigated. X-ray diffraction and energy-dispersive X-ray spectroscopy were used to obtain phase composition of the ceramics, and scanning electron microscopy was used to observe their microstructure. A network analyzer was used to measure dielectric properties, while mechanical, simultaneous-thermal, and dynamic mechanical analyzers were used to obtain mechanical and chemical properties. Li2Mg0.95Co0.05SiO4 (LMCS) and TiO2 co-exist in the composite system. TiO2 addition resulted in decreasing grain size and crystallite size, increasing starting temperature of shrinkage, increasing activation energy, and increasing elasticity and stiffness. A 4%/volume addition of TiO2 and sintering at 1075 °C changed the LMCS τf to 1.57 ppm/°C and resulted in dielectric properties of εr = 6.33 and Q × f = 17,000 GHz (16 GHz) with a relative density equals to 96.13%.http://www.sciencedirect.com/science/article/pii/S2238785421007201SilicateLow dielectric constantDielectric propertiesTemperature stability |
| spellingShingle | Rui Peng Liang Shi Yongcheng Lu Xiaolei Shi Gang Wang Yuanxun Li Hua Su Daming Chen Yuanzheng He Temperature stability adjustment of cobalt-doped Li2MgSiO4 ceramic: its' sintering, dielectric, and mechanical properties Journal of Materials Research and Technology Silicate Low dielectric constant Dielectric properties Temperature stability |
| title | Temperature stability adjustment of cobalt-doped Li2MgSiO4 ceramic: its' sintering, dielectric, and mechanical properties |
| title_full | Temperature stability adjustment of cobalt-doped Li2MgSiO4 ceramic: its' sintering, dielectric, and mechanical properties |
| title_fullStr | Temperature stability adjustment of cobalt-doped Li2MgSiO4 ceramic: its' sintering, dielectric, and mechanical properties |
| title_full_unstemmed | Temperature stability adjustment of cobalt-doped Li2MgSiO4 ceramic: its' sintering, dielectric, and mechanical properties |
| title_short | Temperature stability adjustment of cobalt-doped Li2MgSiO4 ceramic: its' sintering, dielectric, and mechanical properties |
| title_sort | temperature stability adjustment of cobalt doped li2mgsio4 ceramic its sintering dielectric and mechanical properties |
| topic | Silicate Low dielectric constant Dielectric properties Temperature stability |
| url | http://www.sciencedirect.com/science/article/pii/S2238785421007201 |
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