| Autor: |
Xianzhen Wang, Qingxuan Meng, Tianze Wang, Xuming Chu, Aiqin Fan, Hui Wang |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Metals, Vol 12, Iss 5, p 786 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2075-4701 |
| DOI: |
10.3390/met12050786 |
| Popis: |
Due to its excellent mechanical properties and ultra-lightweight, Al-based foam with homogeneous small pore-structures has wide applicational prospects in many industrial fields. However, during the foaming process of molten Al, it is difficult to manipulate the pore structures of the Al-based foam by means of the ALPORAS© production route due to the violent gas-releasing performance of TiH2 as a traditional foaming agent. Herein, we developed the melt-foaming route, that is, using MgCO3/Zn composite powder as a foaming agent instead of TiH2, the Al-based foam with homogeneous small pore-structures (average diameter was about 1 mm) was prepared successfully. Meanwhile, the decomposition model of the MgCO3/Zn composite powder was proposed and further verified experimentally. The decomposition kinetics of the MgCO3/Zn composite powder was also analyzed. Our findings not only shed light on the practical manufacturing of Al-based foam with homogeneous small pore-structures, but provide an insightful improvement for melt-foaming approaches. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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