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- Title
Pressure Infiltration of Aluminum Melts into a Loose Bed of Hollow Cenosphere Particles.
- Authors
Kim, Jeongkyun; Kordijazi, Amir; Rohatgi, Pradeep
- Abstract
Experiments on pressure infiltration of pure aluminum melts in loose beds of hollow spherical particles were conducted. An analytical analysis on the melt infiltration in a bed of hollow spherical particles was performed. The solidified layer volume fraction on the particles and their apparent volume fraction were analyzed with respect to the ratio of particle wall thickness and particle radius (t/R). The effect of the apparent volume fraction on the threshold pressure, pressure drop, infiltration length, melt temperature, melt flow, and melt viscosity was analyzed. The analysis showed that a higher particle temperature and a lower ratio of t/R decrease the apparent volume fraction of the solidified layers, which results in a lower threshold pressure, longer infiltration length, higher melt temperature around the particles, and higher melt velocity. These results were used to explain the infiltration of the melt into a bed of hollow particles and suggest the benefit of hollow particles for synthesizing composites using melt infiltration techniques.
- Subjects
MELT infiltration; PRESSURE drop (Fluid dynamics); LOW temperatures; HIGH temperatures; SEEPAGE
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2022, Vol 74, Issue 5, p2071
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-022-05226-y