Robust, fire-resistant, and thermal-stable SiZrNOC nanofiber membranes with amorphous microstructure for high-temperature thermal superinsulation
Ceramic nanofibers with robust mechanical properties, high-temperature resistance, and superior thermal insulation performance are promising thermal insulators used under extreme conditions. However, developing of ceramic fibers with both low solid thermal conductivity (λs) and low infrared radiatio...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Tsinghua University Press
2023-01-01
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| Series: | Journal of Advanced Ceramics |
| Subjects: | |
| Online Access: | https://www.sciopen.com/article/10.26599/JAC.2023.9220664 |
| _version_ | 1797858574505869312 |
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| author | Xiaoshan ZHANG Nana XU Yonggang JIANG Haiyan LIU Hui XU Cheng HAN Bing WANG Yingde WANG |
| author_facet | Xiaoshan ZHANG Nana XU Yonggang JIANG Haiyan LIU Hui XU Cheng HAN Bing WANG Yingde WANG |
| author_sort | Xiaoshan ZHANG |
| collection | DOAJ |
| description | Ceramic nanofibers with robust mechanical properties, high-temperature resistance, and superior thermal insulation performance are promising thermal insulators used under extreme conditions. However, developing of ceramic fibers with both low solid thermal conductivity (λs) and low infrared radiation thermal conductivity (λr) is still a great challenge. Herein, according to the Ioffe–Regel limit theory, we report a novel SiZrNOC nanofiber membrane (NFM) with a typically amorphous structure by combining the electrospinning method and high-temperature pyrolysis technique in a NH3 atmosphere. The prepared SiZrNOC NFM has a high tensile strength (1.98±0.09 MPa), excellent thermal stability (1100 ℃ in air), and superior thermal insulation performance. The thermal conductivity of SiZrNOC NFM was 0.112 W·m−1·K−1 at 1000 ℃, which is obviously lower than that of the traditional ceramic fiber membranes (> 0.2 W·m−1·K−1 at 1000 ℃). In addition, the prepared SiZrNOC NFM-reinforced SiO2 aerogel composites (SiZrNOCf/SiO2 ACs) exhibited ultralow thermal conductivity of 0.044 W·m−1·K−1 at 1000 ℃, which was the lowest value for SiO2-based aerogel composites ever reported. Such superior thermal insulation performance of SiZrNOC NFMs was mainly due to significant decreasing of solid heat conduction and thermal radiation by the fancy amorphous microstructure and high infrared shielding compositions. This work not only provides a promising high-temperature thermal insulator, but also offers a novel route to develop other high-performance thermal insulating materials. |
| first_indexed | 2024-04-09T21:16:40Z |
| format | Article |
| id | doaj.art-c729b24762dc4e378ac78f360ec8ffec |
| institution | Directory Open Access Journal |
| issn | 2226-4108 2227-8508 |
| language | English |
| last_indexed | 2024-04-09T21:16:40Z |
| publishDate | 2023-01-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Journal of Advanced Ceramics |
| spelling | doaj.art-c729b24762dc4e378ac78f360ec8ffec2023-03-28T09:04:54ZengTsinghua University PressJournal of Advanced Ceramics2226-41082227-85082023-01-01121364810.26599/JAC.2023.9220664Robust, fire-resistant, and thermal-stable SiZrNOC nanofiber membranes with amorphous microstructure for high-temperature thermal superinsulationXiaoshan ZHANG0Nana XU1Yonggang JIANG2Haiyan LIU3Hui XU4Cheng HAN5Bing WANG6Yingde WANG7Science and Technology on Advanced Ceramic Fiber and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaScience and Technology on Advanced Ceramic Fiber and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaScience and Technology on Advanced Ceramic Fiber and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaScience and Technology on Advanced Ceramic Fiber and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaScience and Technology on Advanced Ceramic Fiber and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaScience and Technology on Advanced Ceramic Fiber and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaScience and Technology on Advanced Ceramic Fiber and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaScience and Technology on Advanced Ceramic Fiber and Composites Laboratory, College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, ChinaCeramic nanofibers with robust mechanical properties, high-temperature resistance, and superior thermal insulation performance are promising thermal insulators used under extreme conditions. However, developing of ceramic fibers with both low solid thermal conductivity (λs) and low infrared radiation thermal conductivity (λr) is still a great challenge. Herein, according to the Ioffe–Regel limit theory, we report a novel SiZrNOC nanofiber membrane (NFM) with a typically amorphous structure by combining the electrospinning method and high-temperature pyrolysis technique in a NH3 atmosphere. The prepared SiZrNOC NFM has a high tensile strength (1.98±0.09 MPa), excellent thermal stability (1100 ℃ in air), and superior thermal insulation performance. The thermal conductivity of SiZrNOC NFM was 0.112 W·m−1·K−1 at 1000 ℃, which is obviously lower than that of the traditional ceramic fiber membranes (> 0.2 W·m−1·K−1 at 1000 ℃). In addition, the prepared SiZrNOC NFM-reinforced SiO2 aerogel composites (SiZrNOCf/SiO2 ACs) exhibited ultralow thermal conductivity of 0.044 W·m−1·K−1 at 1000 ℃, which was the lowest value for SiO2-based aerogel composites ever reported. Such superior thermal insulation performance of SiZrNOC NFMs was mainly due to significant decreasing of solid heat conduction and thermal radiation by the fancy amorphous microstructure and high infrared shielding compositions. This work not only provides a promising high-temperature thermal insulator, but also offers a novel route to develop other high-performance thermal insulating materials.https://www.sciopen.com/article/10.26599/JAC.2023.9220664amorphous microstructuresizrnoc nanofiberthermal stabilitythermal insulation |
| spellingShingle | Xiaoshan ZHANG Nana XU Yonggang JIANG Haiyan LIU Hui XU Cheng HAN Bing WANG Yingde WANG Robust, fire-resistant, and thermal-stable SiZrNOC nanofiber membranes with amorphous microstructure for high-temperature thermal superinsulation Journal of Advanced Ceramics amorphous microstructure sizrnoc nanofiber thermal stability thermal insulation |
| title | Robust, fire-resistant, and thermal-stable SiZrNOC nanofiber membranes with amorphous microstructure for high-temperature thermal superinsulation |
| title_full | Robust, fire-resistant, and thermal-stable SiZrNOC nanofiber membranes with amorphous microstructure for high-temperature thermal superinsulation |
| title_fullStr | Robust, fire-resistant, and thermal-stable SiZrNOC nanofiber membranes with amorphous microstructure for high-temperature thermal superinsulation |
| title_full_unstemmed | Robust, fire-resistant, and thermal-stable SiZrNOC nanofiber membranes with amorphous microstructure for high-temperature thermal superinsulation |
| title_short | Robust, fire-resistant, and thermal-stable SiZrNOC nanofiber membranes with amorphous microstructure for high-temperature thermal superinsulation |
| title_sort | robust fire resistant and thermal stable sizrnoc nanofiber membranes with amorphous microstructure for high temperature thermal superinsulation |
| topic | amorphous microstructure sizrnoc nanofiber thermal stability thermal insulation |
| url | https://www.sciopen.com/article/10.26599/JAC.2023.9220664 |
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