Depositing of Amorphous Ferri-Oxide Nanoparticles on Surfaces of Submicron Aluminum Powder
Autor: | Xiaolan Song, Yi Wang, Guo Dong Deng, Wei Jiang, Feng Sheng Li |
---|---|
Rok vydání: | 2013 |
Předmět: | |
Zdroj: | Applied Mechanics and Materials. 320:451-455 |
ISSN: | 1662-7482 |
DOI: | 10.4028/www.scientific.net/amm.320.451 |
Popis: | Nanoparticles with about 20nm diameter were densely coated on the surface of submicron Al via a sol-gel processing in ethanol, wherein 1,2-epoxypropane acted as a weak base to consume proton in solution. After the medium gelled, uniform network formed and aluminum particles imbedded in it. The core-shell structure and the nanoparticles were observed in SEM analysis. The EDS spectrum and the XRD pattern revealed that the cores consisted of amorphous ferri-oxide of which the mass ratio is closed to that of crystal Fe2O3. Thermal analysis was performed and the results indicated that the DSC peak point of ferri-oxide/Al nanocomposite showed 53 °C lower than that of [ferri-oxide+A simple mixture. |
Databáze: | OpenAIRE |
Externí odkaz: |
načítá se...