Fabrication and high temperature electrical conductivity of polymer-derived SiHfBCN ceramic coating
Wireless surface acoustic wave (SAW) sensors hold great promise for in-situ, real-time monitoring and accurately assessing the health status of hot-end components. However, the thin-film electrode as the SAW sensor core unit with excellent high-temperature conductivity, stability, and oxidation resi...
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| Format: | Article |
| Language: | English |
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Tsinghua University Press
2025-01-01
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| Series: | Journal of Advanced Ceramics |
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| Online Access: | https://www.sciopen.com/article/10.26599/JAC.2024.9221011 |
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| author | Xichao Dong Qinghua Zhao Yao Li Shaomin Gu Xinming Xu Dianwei He Fang Ye Laifei Cheng Xingang Luan Zhaoju Yu |
| author_facet | Xichao Dong Qinghua Zhao Yao Li Shaomin Gu Xinming Xu Dianwei He Fang Ye Laifei Cheng Xingang Luan Zhaoju Yu |
| author_sort | Xichao Dong |
| collection | DOAJ |
| description | Wireless surface acoustic wave (SAW) sensors hold great promise for in-situ, real-time monitoring and accurately assessing the health status of hot-end components. However, the thin-film electrode as the SAW sensor core unit with excellent high-temperature conductivity, stability, and oxidation resistance is still a challenge, especially in harsh ultra-high-temperature environments. In this study, we employed a polymer-derived ceramic approach to fabricate smooth and dense SiHfBCN ceramic coatings on YCa4O(BO3)3/BN substrate. The composition, microstructural evolution, and room-temperature and high-temperature electrical conductivity of SiHfBCN ceramic coatings were investigated to reveal the mechanism for controlling electrical conductivity. The results indicate that the electrical conductivity of the SiHfBCN ceramic coating pyrolyzed at a lower temperature of 1200 °C reaches an impressive high value of 291.55 S·m−¹ at 1200 °C in argon. Importantly, the results also demonstrate that the coating has remarkable high-temperature conductivity and excellent repeatability and durability. Therefore, the typical semiconducting behavior of SiHfBCN ceramic coatings highlights their potential as thin-film electrodes for SAW high-temperature sensors in high-temperature extreme environments. |
| format | Article |
| id | doaj-art-ee22951fcf49466d80e6f3cccad83b69 |
| institution | Kabale University |
| issn | 2226-4108 2227-8508 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Journal of Advanced Ceramics |
| spelling | doaj-art-ee22951fcf49466d80e6f3cccad83b692025-01-24T07:52:15ZengTsinghua University PressJournal of Advanced Ceramics2226-41082227-85082025-01-01141922101110.26599/JAC.2024.9221011Fabrication and high temperature electrical conductivity of polymer-derived SiHfBCN ceramic coatingXichao Dong0Qinghua Zhao1Yao Li2Shaomin Gu3Xinming Xu4Dianwei He5Fang Ye6Laifei Cheng7Xingang Luan8Zhaoju Yu9Science and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, ChinaScience and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, ChinaScience and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, ChinaScience and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, ChinaScience and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, ChinaScience and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, ChinaScience and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, ChinaScience and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, ChinaScience and Technology on Thermostructural Composite Materials Laboratory, Northwestern Polytechnical University, Xi’an, Shaanxi 710072, ChinaCollege of Materials, Key Laboratory of High-Performance Ceramic Fibers (Xiamen University), Ministry of Education, Xiamen 361005, ChinaWireless surface acoustic wave (SAW) sensors hold great promise for in-situ, real-time monitoring and accurately assessing the health status of hot-end components. However, the thin-film electrode as the SAW sensor core unit with excellent high-temperature conductivity, stability, and oxidation resistance is still a challenge, especially in harsh ultra-high-temperature environments. In this study, we employed a polymer-derived ceramic approach to fabricate smooth and dense SiHfBCN ceramic coatings on YCa4O(BO3)3/BN substrate. The composition, microstructural evolution, and room-temperature and high-temperature electrical conductivity of SiHfBCN ceramic coatings were investigated to reveal the mechanism for controlling electrical conductivity. The results indicate that the electrical conductivity of the SiHfBCN ceramic coating pyrolyzed at a lower temperature of 1200 °C reaches an impressive high value of 291.55 S·m−¹ at 1200 °C in argon. Importantly, the results also demonstrate that the coating has remarkable high-temperature conductivity and excellent repeatability and durability. Therefore, the typical semiconducting behavior of SiHfBCN ceramic coatings highlights their potential as thin-film electrodes for SAW high-temperature sensors in high-temperature extreme environments.https://www.sciopen.com/article/10.26599/JAC.2024.9221011sihfbcncoatingpolymer-derived ceramicshigh-temperature electrical conductivity |
| spellingShingle | Xichao Dong Qinghua Zhao Yao Li Shaomin Gu Xinming Xu Dianwei He Fang Ye Laifei Cheng Xingang Luan Zhaoju Yu Fabrication and high temperature electrical conductivity of polymer-derived SiHfBCN ceramic coating Journal of Advanced Ceramics sihfbcn coating polymer-derived ceramics high-temperature electrical conductivity |
| title | Fabrication and high temperature electrical conductivity of polymer-derived SiHfBCN ceramic coating |
| title_full | Fabrication and high temperature electrical conductivity of polymer-derived SiHfBCN ceramic coating |
| title_fullStr | Fabrication and high temperature electrical conductivity of polymer-derived SiHfBCN ceramic coating |
| title_full_unstemmed | Fabrication and high temperature electrical conductivity of polymer-derived SiHfBCN ceramic coating |
| title_short | Fabrication and high temperature electrical conductivity of polymer-derived SiHfBCN ceramic coating |
| title_sort | fabrication and high temperature electrical conductivity of polymer derived sihfbcn ceramic coating |
| topic | sihfbcn coating polymer-derived ceramics high-temperature electrical conductivity |
| url | https://www.sciopen.com/article/10.26599/JAC.2024.9221011 |
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