Noise Reduction Potential of Cellular Metals
Abstract
:1. Introduction
2. Material Characterization
Material | Alloy | Porosity | Cell/pore size * | Average pore size |
---|---|---|---|---|
MF-50 | Haynes Alloy 230 | 82% | n/a | 121 ± 9 µm |
MF-450 | NiFe22Cr22Al6 | 90% | 450 ± 45 µm | 380 ± 19 ** µm |
MF-580 | NiFe22Cr22Al6 | 92% | 580 ± 60 µm | 445 ± 18 ** µm |
MF-800 | NiFe22Cr22Al6 | 94% | 800 ± 80 µm | 538 ± 58 ** µm |
MF-1200 | NiFe22Cr22Al6 | 95% | 1200 ± 120 µm | 656 ± 59 ** µm |
SF-7.5 | Hastelloy X | 20% | 1.4~8 µm | 8.6 ± 1.2 µm |
SF-20 | Hastelloy X | 35% | 12~25 µm | 22 ± 2 µm |
SF-115 | Hastelloy X | 50% | 24~117 µm | 113 ± 13 µm |
SS-25 | CuSn12 | 30% | 8~21 µm | 25 ± 2 µm |
SS-80 | CuSn12 | 25% | 37~175 µm | 80 ± 12 µm |
SFF-1 | Fe-22Cr-5Al (316 L) | 60 *% | 3~10 µm | 6.7 * µm |
SFF-15 | Fe-22Cr-5Al (316 L) | 77 *% | 13~26 µm | 18 * µm |
SFF-25 | Fe-22Cr-5Al (316 L) | 80 *% | 22~52 µm | 29 * µm |
SFF-50 | Fe-22Cr-5Al (316 L) | 68 *% | 33~98 µm | 51 * µm |
SFF-100 | Fe-22Cr-5Al (316 L) | 84 *% | 38~112 µm | 99 ± 8 µm |
SFF-120 | Fe-22Cr-5Al (316 L) | 92% | n/a | 337 ± 83 µm |
SFF-150 | Fe-22Cr-5Al (316 L) | 96% | n/a | 386 ± 14 µm |
3. Acoustic Absorption Measurement Using an Impedance Tube
4. Discussion
5. Conclusions
Conflict of Interest
Acknowledgments
References
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Hinze, B.; Rösler, J.; Lippitz, N. Noise Reduction Potential of Cellular Metals. Metals 2012, 2, 195-201. https://doi.org/10.3390/met2020195
Hinze B, Rösler J, Lippitz N. Noise Reduction Potential of Cellular Metals. Metals. 2012; 2(2):195-201. https://doi.org/10.3390/met2020195
Chicago/Turabian StyleHinze, Björn, Joachim Rösler, and Nicolas Lippitz. 2012. "Noise Reduction Potential of Cellular Metals" Metals 2, no. 2: 195-201. https://doi.org/10.3390/met2020195