Fabrication of Uniform and Rounded Closed-Cell Aluminum Foams Using Novel Foamable Precursor Particles (FPPs)
Abstract
:1. Introduction
2. Experimental Procedures
3. Results and Discussion
4. Conclusions
- Al-TiH2 FPPs have been successfully used to process bulk aluminum closed cell foams with relatively high circularities.
- Due to the localization of TiH2 within particles, the local TiH2 content was 2 wt.%, allowing for the generation of rounded voids despite the low overall TiH2 content for the foam.
- Under the investigated processing conditions, the highest foam porosity of 60% was obtained with an overall TiH2 content of 0.2 wt.% (equivalent to 10% composite FPP content).
- The relative strengths of the FPP foams investigated roughly fall in between the ideal open and ideal closed cell boundaries.
- Products with 40–60% porosity were found to have energy absorption capacities of 10–25 MJ/m3 at 50% strain.
- The maximum energy absorption efficiencies for foams with 40–60% porosity ranged from 0.6–0.7.
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Group | H/W Ratio | FPP Content wt.% | Overall wt.% TiH2 | Mean Density (g/cc) | Mean Porosity % |
---|---|---|---|---|---|
A | 0.4 | 0 | 0.00 | 2.4 | 12 |
1 | 0.02 | 2.0 | 25 | ||
10 | 0.20 | 1.0 | 60 | ||
B | 0.7 | 3 | 0.06 | 1.6 | 41 |
5 | 0.10 | 1.4 | 49 | ||
10 | 0.20 | 1.0 | 60 |
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Mudge, A.; Morsi, K. Fabrication of Uniform and Rounded Closed-Cell Aluminum Foams Using Novel Foamable Precursor Particles (FPPs). Metals 2024, 14, 120. https://doi.org/10.3390/met14010120
Mudge A, Morsi K. Fabrication of Uniform and Rounded Closed-Cell Aluminum Foams Using Novel Foamable Precursor Particles (FPPs). Metals. 2024; 14(1):120. https://doi.org/10.3390/met14010120
Chicago/Turabian StyleMudge, Angela, and K. Morsi. 2024. "Fabrication of Uniform and Rounded Closed-Cell Aluminum Foams Using Novel Foamable Precursor Particles (FPPs)" Metals 14, no. 1: 120. https://doi.org/10.3390/met14010120