SYNTHESIS OF ALUMINUM-MATRIX COMPOSITES CONTAINING NANOCRYSTALLINE OXIDE PHASES

Authors
PRADHAN SK DATTA A CHATTERJEE A DE M CHAKRAVORTY D
Citation
Sk. Pradhan et al., SYNTHESIS OF ALUMINUM-MATRIX COMPOSITES CONTAINING NANOCRYSTALLINE OXIDE PHASES, Bulletin of Materials Science, 17(6), 1994, pp. 849-853
Citations number
11
Categorie Soggetti
Material Science
Journal title
Bulletin of Materials Science → ACNP
ISSN journal
02504707
Volume
17
Issue
6
Year of publication
1994
Pages
849 - 853
Database
ISI
SICI code
0250-4707(1994)17:6<849:SOACCN>2.0.ZU;2-3
Abstract
Using nanocrystalline particles of mullite and zirconia respectively w ith diameters in the range 20-30 nm prepared by a sol-gel route, alumi nium metal-matrix composites have been synthesized. A hot pressing tec hnique has been used with temperatures varying from 450-610 degrees C. The vickers hardness values for the composites are found to be substa ntially higher than that of pure aluminium. An order of magnitude incr ease in hardness is achieved when Al5Mo phase is grown in the composit e.