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Pressureless infiltration of aluminum metal-matrix composites |
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| Authors: | Y Kajikawa T Nukami M C Flemings |
| Affiliation: | 1. Materials Engineering Division I, Toyota Motor Corporation, 02139, Cambridge, MA 2. Material Engineering Division III, Toyota Motor Corporation, 02139, Cambridge, MA 3. Department of Materials Science and Engineering, Massachusetts Institute of Technology, 02139, Cambridge, MA |
| Abstract: | Pressureless infiltration of ceramic preforms by molten aluminum is described. The preforms are SiC with varying amounts of particulate Al, Ti, and Ni. Infiltrants employed are pure Al and Al-12.5 wt pct Si. It is shown that a pressure differential within the preform is required for infiltration, and measurements are made of pressure changes in the preforms during infiltration. Results indicate that atmospheric pressure is essential for infiltration but that capillarity may play a role as well. T. NUKAMI, formerly Research Assistant, Massachusetts Institute of Technology |
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