| Autor: |
Pradana, Yanuar Rohmat Aji, Suhatta, Kitana Handa, Andoko, Andoko, Bintara, Redyarsa Dharma, Lubis, Didin Zakariya, Suryanto, Heru |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2023, Vol. 2687 Issue 1, p1-7, 7p |
| Abstrakt: |
As a unique structure, aluminum (Al) foam is extensively used in heat transfer, low weight-high stiffness structure, and energy absorption applications to answer the new technological needs in energy saving. This study analyzed the compressive strength of open-cell Al foam fabricated using spherical silica gel (SiO2) particles as a space holder with the variation of particle grain size. The Al scraps were initially melted inside the furnace at 800 °C and subsequently poured into a heated cylindrical steel mold filled with SiO2 having various particle sizes. The vacuum pressure was spontaneously applied just after the melt completely fill the pouring basin. After the remained SiO2 had been removed from the foam specimens, the porosity was measured. The compressive test was conducted on the cylindrical foam specimens using the universal testing machine (UTM) and the macroscopic appearance of outer cellular fracture was captured during the test. The results showed that the larger SiO2 size generates the higher porosity level of 63% at 5 mm particle size. This higher porosity corresponds to the forming of the larger size of pores in the center of specimens. Consequently, at higher porosity, the compressive strength value obtained was lower with only 4.10 MPa, compared to those with the particle size of 3 mm (10.41 MPa) and 4 mm (6.25 MPa), as confirmed by the compression test. The data obtained from the experiment could provide an overview for those who want to develop Al foam with a certain level of strength. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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