Factors Influencing Foam Height in Gas Injection Process for Aluminum Foams

Jian Yu Yuan; Yan Xiang Li; Xiang Chen; Yu Tong Zhou

doi:10.4028/www.scientific.net/AMR.1104.33

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1104Factors Influencing Foam Height in Gas Injection...

Factors Influencing Foam Height in Gas Injection Process for Aluminum Foams

Abstract:

The present study proposed a convenient method to characterize the stability of aluminum foams by utilizing the resulting foam height. The factors influencing foam height in gas injection process was investigated including the blowing gas (N₂ and air), particle content (5vol.%-15vol.%), gas flow rate (0.03m³/h-0.3m³/h) and orifice size (0.3mm and 0.5mm). Factors that contribute to the foam stability including oxygen in the blowing gas and larger particle content in the melt was proved to be positively related to the foam height. Moreover, it was found that larger gas flow rate and smaller orifice size lead to larger foam height. The cell wall microstructure and thickness was also analyzed to better understand the foaming behavior. The present study offers favorable proof that the foam height in the gas injection process can be a good index for the foam stability.

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Periodical:

Advanced Materials Research (Volume 1104)

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33-37

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1104.33

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Online since:

May 2015

Authors:

Jian Yu Yuan*, Yan Xiang Li, Xiang Chen, Yu Tong Zhou

Keywords:

Aluminum Foam, Foam Height, Gas Injection Process

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