Ultra-flexible TiO2/SiO2 nanofiber membranes with layered structure for thermal insulation
High-performance thermally insulating ceramic materials with excellent mechanical and thermal insulation properties are essential for thermal management in extreme environments. In this work, SiO2 was introduced into the crystalline lattice and grain boundary of TiO2 to inhibit its phase transition...
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| Format: | Article |
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Elsevier
2025-01-01
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| Series: | Journal of Materiomics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352847824000613 |
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| author | Zhenfeng Guo Ze Zhu Xiaoqian Zhang Ying Peng Ziting Huang Xinqiang Wang Luyi Zhu Yongshuai Xie Guanghui Zhang Benxue Liu Dong Xu |
| author_facet | Zhenfeng Guo Ze Zhu Xiaoqian Zhang Ying Peng Ziting Huang Xinqiang Wang Luyi Zhu Yongshuai Xie Guanghui Zhang Benxue Liu Dong Xu |
| author_sort | Zhenfeng Guo |
| collection | DOAJ |
| description | High-performance thermally insulating ceramic materials with excellent mechanical and thermal insulation properties are essential for thermal management in extreme environments. In this work, SiO2 was introduced into the crystalline lattice and grain boundary of TiO2 to inhibit its phase transition and grain growth. Meanwhile, layered TiO2/SiO2 nanofiber membranes (TS NFMs) were designed and prepared. The TS NFMs had lightweight (44 mg/cm3), high tensile strength (4.55 MPa), ultra-flexibility, and low thermal conductivity (31.5 mW·m−1·K−1). The prepared TS-1100 NFMs had excellent buckling fatigue resistance, which could undergo 100 buckling-recovery cycles at up to 80% strain. Low density and high diffuse reflectance endow the TS NFMs with excellent thermal insulation effects. A single-layer nanofiber membrane was composed of multiple layers of nanofibers. According to the principle of multi-level reflection, the multilayer structure had a better near-infrared reflection effect. Through the stacking effect of layers, a 10 mm thick sample composed of about 300 layers of nanofiber membranes could reduce the hot surface temperature from 1,200 °C to about 220 °C, demonstrating an excellent comprehensive thermal insulation effect. The layered TS NFMs with ultra-flexibility, high tensile strength and high-temperature resistance (1,100 °C) provide a dominant pathway in producing materials in extremely high-temperature environments. |
| format | Article |
| id | doaj-art-4f1095a73dd64f16899b309e053136e8 |
| institution | Kabale University |
| issn | 2352-8478 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materiomics |
| spelling | doaj-art-4f1095a73dd64f16899b309e053136e82025-01-04T04:56:35ZengElsevierJournal of Materiomics2352-84782025-01-01111100856Ultra-flexible TiO2/SiO2 nanofiber membranes with layered structure for thermal insulationZhenfeng Guo0Ze Zhu1Xiaoqian Zhang2Ying Peng3Ziting Huang4Xinqiang Wang5Luyi Zhu6Yongshuai Xie7Guanghui Zhang8Benxue Liu9Dong Xu10State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan, 250100, ChinaState Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan, 250100, ChinaState Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan, 250100, ChinaState Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan, 250100, ChinaState Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan, 250100, ChinaState Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan, 250100, China; Corresponding author.State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan, 250100, ChinaState Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan, 250100, China; State Key Laboratory of Intelligent Manufacturing Equipment and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China; Corresponding author. State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan, 250100, China.State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan, 250100, ChinaState Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan, 250100, ChinaState Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan, 250100, ChinaHigh-performance thermally insulating ceramic materials with excellent mechanical and thermal insulation properties are essential for thermal management in extreme environments. In this work, SiO2 was introduced into the crystalline lattice and grain boundary of TiO2 to inhibit its phase transition and grain growth. Meanwhile, layered TiO2/SiO2 nanofiber membranes (TS NFMs) were designed and prepared. The TS NFMs had lightweight (44 mg/cm3), high tensile strength (4.55 MPa), ultra-flexibility, and low thermal conductivity (31.5 mW·m−1·K−1). The prepared TS-1100 NFMs had excellent buckling fatigue resistance, which could undergo 100 buckling-recovery cycles at up to 80% strain. Low density and high diffuse reflectance endow the TS NFMs with excellent thermal insulation effects. A single-layer nanofiber membrane was composed of multiple layers of nanofibers. According to the principle of multi-level reflection, the multilayer structure had a better near-infrared reflection effect. Through the stacking effect of layers, a 10 mm thick sample composed of about 300 layers of nanofiber membranes could reduce the hot surface temperature from 1,200 °C to about 220 °C, demonstrating an excellent comprehensive thermal insulation effect. The layered TS NFMs with ultra-flexibility, high tensile strength and high-temperature resistance (1,100 °C) provide a dominant pathway in producing materials in extremely high-temperature environments.http://www.sciencedirect.com/science/article/pii/S2352847824000613Ultra-flexibleTiO2/SiO2Layered nanofiber membranesThermal insulation |
| spellingShingle | Zhenfeng Guo Ze Zhu Xiaoqian Zhang Ying Peng Ziting Huang Xinqiang Wang Luyi Zhu Yongshuai Xie Guanghui Zhang Benxue Liu Dong Xu Ultra-flexible TiO2/SiO2 nanofiber membranes with layered structure for thermal insulation Journal of Materiomics Ultra-flexible TiO2/SiO2 Layered nanofiber membranes Thermal insulation |
| title | Ultra-flexible TiO2/SiO2 nanofiber membranes with layered structure for thermal insulation |
| title_full | Ultra-flexible TiO2/SiO2 nanofiber membranes with layered structure for thermal insulation |
| title_fullStr | Ultra-flexible TiO2/SiO2 nanofiber membranes with layered structure for thermal insulation |
| title_full_unstemmed | Ultra-flexible TiO2/SiO2 nanofiber membranes with layered structure for thermal insulation |
| title_short | Ultra-flexible TiO2/SiO2 nanofiber membranes with layered structure for thermal insulation |
| title_sort | ultra flexible tio2 sio2 nanofiber membranes with layered structure for thermal insulation |
| topic | Ultra-flexible TiO2/SiO2 Layered nanofiber membranes Thermal insulation |
| url | http://www.sciencedirect.com/science/article/pii/S2352847824000613 |
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