Flexible ceramic nanofibermat electrospun from TiO2–SiO2 aqueous sol
| Autor: | Hyoungjun Park, Wolfgang M. Sigmund, Apratim Biswas |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Materials science
Aqueous solution Average diameter Process Chemistry and Technology Surfaces Coatings and Films Electronic Optical and Magnetic Materials Amorphous solid visual_art Nanofiber Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Heat treated Perpendicular Ceramic Composite material |
| Zdroj: | Ceramics International. 38:883-886 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2011.07.060 |
| Popis: | Flexible ceramic nanofibers have been electrospun from a novel TiO 2 –SiO 2 aqueous sol. The nanofibers obtained have an average diameter of around 150 nm and are amorphous even after heat treatment at 600 °C for 3 h in air. Since the material is amorphous it may be considered as electrospun glass nanofiber. Fracture in glass usually initiates from surface defects and in the absence of any preferred plane propagates perpendicular to the surface. The presence of surface defects on the heat treated nanofibers could not be detected on SEM and TEM images. It is hypothesized that the observed flexibility is due to significant reduction in surface defects. |
| Databáze: | OpenAIRE |
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