Dergiler / Turkish Journal of Engineering and Environmental Sciences / 2001 / Cilt: 25 - Sayı: 3
Effect of Mechanical Alloying Duration on Microstructure in Composites Produced Via Oxidation of Ba-Al Powders
- Sayfa
- 205–210
- DOI
- —
Özet
To eliminate some problems in the production of composites by classical methods, composite producing was performed by oxidising metallic precursor, and mechanically alloyed Ba-Al powders were oxidised. Mechanical alloying proceses were applied with rolling and high-energy vibratory ball mills and the effect of milling duration on the micro structure was determined. It was found that the powders were not mixed completely and uniformly for even a 100 hour ball milling duration. It was also found that a 5 hour high energy vibratory milling time resulted in sufficient and uniform dispersion, and with increasing milling time, mechanical alloying and uniform dispersion were increased.
Abstract
To eliminate some problems in the production of composites by classical methods, composite producing was performed by oxidising metallic precursor, and mechanically alloyed Ba-Al powders were oxidised. Mechanical alloying proceses were applied with rolling and high-energy vibratory ball mills and the effect of milling duration on the micro structure was determined. It was found that the powders were not mixed completely and uniformly for even a 100 hour ball milling duration. It was also found that a 5 hour high energy vibratory milling time resulted in sufficient and uniform dispersion, and with increasing milling time, mechanical alloying and uniform dispersion were increased.