Fabrication of ultralight heat-insulating hollow-fiber mullite fiberboards
| Autor: | Jian Kong, Xin Sun, Xiaotong Li, Tianchi Wang, Shuting Yuan, Ziwen Cheng |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
business.industry Process Chemistry and Technology Sintering Mullite Microstructure Surfaces Coatings and Films Electronic Optical and Magnetic Materials Compressive strength Thermal conductivity Thermal insulation Materials Chemistry Ceramics and Composites Fiber Adhesive Composite material business |
| Zdroj: | Ceramics International. 47:29576-29583 |
| ISSN: | 0272-8842 |
| Popis: | Mullite fiberboards have been extensively used in heat-insulating refractory materials. To further improve the thermal insulation properties and reduce the density, we fabricated mullite fiberboards by vacuum filtration using hollow mullite fibers based on a ceiba fiber template. The effects of sintering temperature and type and content of high-temperature adhesives on the density, compressive strength, thermal conductivity, microstructure, and volume stability of mullite fiberboards were investigated. The results showed that the obtained mullite fiberboards have ultralow density of 0.1–0.2 g/cm3, low thermal conductivity of 0.0988–0.1230 W/(m·K) (at 500 °C), and compressive strength of 0.08–0.12 MPa, and they exhibit good volume stability at 1300 °C. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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