Abstract
In the present work, a SiCp/Al composite was fabricated by pressureless infiltration of aluminum alloy into loose-packed SiC particles preform, and its microstructure and hardness performance were investigated. The results showed that the composite was fully infiltrated and the particles were distributed uniformly in the composite. Interfacial reactions were found in the as-cast composite and the reaction product was identified as MgAl2O 4 by TEM observation and XRD analysis. The interfacial reactions enhanced the wettability and promote the spontaneous infiltration process. The thermal exposure process increased the Brinell hardness of the composite. After the thermal exposure process, the block-like interfacial reaction products were distributed discretely, but the amount of the reaction products was increased.
| Original language | English |
|---|---|
| Pages (from-to) | 1318-1321 |
| Number of pages | 4 |
| Journal | Key Engineering Materials |
| Volume | 353-358 |
| Issue number | PART 2 |
| DOIs | |
| State | Published - 2007 |
| Event | Asian Pacific Conference for Fracture and Strength (APCFS'06) - Sanya, Hainan Island, China Duration: 22 Nov 2006 → 25 Nov 2006 |
Keywords
- Aluminum matrix composite
- Hardness
- Interface
- Pressureless infiltration
- SiC
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