Acoustic-Pressure-Assisted Engineering of Aluminum Foams
(2021) In Advanced Engineering Materials 23(7).- Abstract
Shaping metals as a foam modulates their physical properties, enabling attractive applications where lightweight, low thermal conductivity, or acoustic isolation are desirable. Adjusting the size of the bubbles in the foams is particularly relevant for targeted applications. Herein, a method with a detailed theoretical understanding of how to tune the size of the bubbles in aluminum melts in situ via acoustic pressure is provided. The description is in full agreement with the high-rate 3D X-ray radioscopy of the bubble formation. The study with the intriguing results on the effect of foaming on electrical resistivity, Seebeck coefficient, and thermal conductivity from cryogenic to room temperature is complemented. Compared with bulk... (More)
Shaping metals as a foam modulates their physical properties, enabling attractive applications where lightweight, low thermal conductivity, or acoustic isolation are desirable. Adjusting the size of the bubbles in the foams is particularly relevant for targeted applications. Herein, a method with a detailed theoretical understanding of how to tune the size of the bubbles in aluminum melts in situ via acoustic pressure is provided. The description is in full agreement with the high-rate 3D X-ray radioscopy of the bubble formation. The study with the intriguing results on the effect of foaming on electrical resistivity, Seebeck coefficient, and thermal conductivity from cryogenic to room temperature is complemented. Compared with bulk materials, the investigated foam shows an enhancement in the thermoelectric figure of merit. These results herald promising application of foaming in thermoelectric materials and devices for conversion of thermal energy.
(Less)
- author
- organization
- publishing date
- 2021
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- aluminum, foams, metal-matrix composites, thermoelectricity
- in
- Advanced Engineering Materials
- volume
- 23
- issue
- 7
- article number
- 2100306
- publisher
- Wiley-Blackwell
- external identifiers
-
- scopus:85104677395
- ISSN
- 1438-1656
- DOI
- 10.1002/adem.202100306
- language
- English
- LU publication?
- yes
- id
- 0fe6d250-01a5-4f86-ac96-9b04b0f06f8b
- date added to LUP
- 2021-05-03 14:31:56
- date last changed
- 2024-03-22 09:43:06
@article{0fe6d250-01a5-4f86-ac96-9b04b0f06f8b,
abstract = {{<p>Shaping metals as a foam modulates their physical properties, enabling attractive applications where lightweight, low thermal conductivity, or acoustic isolation are desirable. Adjusting the size of the bubbles in the foams is particularly relevant for targeted applications. Herein, a method with a detailed theoretical understanding of how to tune the size of the bubbles in aluminum melts in situ via acoustic pressure is provided. The description is in full agreement with the high-rate 3D X-ray radioscopy of the bubble formation. The study with the intriguing results on the effect of foaming on electrical resistivity, Seebeck coefficient, and thermal conductivity from cryogenic to room temperature is complemented. Compared with bulk materials, the investigated foam shows an enhancement in the thermoelectric figure of merit. These results herald promising application of foaming in thermoelectric materials and devices for conversion of thermal energy.</p>}},
author = {{Mettan, Xavier and Martino, Edoardo and Rossi, Lidia and Jaćimović, Jaćim and Krsnik, Juraj and Barišić, Osor S. and Babcsán, Norbert and Beke, Sándor and Mokso, Rajmund and Kaptay, George and Forró, László}},
issn = {{1438-1656}},
keywords = {{aluminum; foams; metal-matrix composites; thermoelectricity}},
language = {{eng}},
number = {{7}},
publisher = {{Wiley-Blackwell}},
series = {{Advanced Engineering Materials}},
title = {{Acoustic-Pressure-Assisted Engineering of Aluminum Foams}},
url = {{http://dx.doi.org/10.1002/adem.202100306}},
doi = {{10.1002/adem.202100306}},
volume = {{23}},
year = {{2021}},
}