Fabrication of Fe-Al Intermetallic Foams via Organic Compounds Assisted Sintering

Materials

Krzysztof Karczewski¹  Wojciech Jerzy Stępniowski²  Piotr Kaczor²  Stanisᐪw Jóźwiak² 

[1] id="af1-materials-08-02217">Department of Advanced Materials and Technologies, Military University of Technology, 2 Kaliskiego Str., Warsaw 00-908, Pola

关键词: iron aluminides;    self-propagating high-temperature synthesis;    chemical compounds;   

DOI  :  10.3390/ma8052217

来源: mdpi

【 摘 要 】

The influence of the addition of organic compounds, such as palmitic acid and cholesteryl myristate, on the porous structure of Fe-Al intermetallics formation has been investigated in detail in this paper. It was found that additives have a significant effect on the final porosity of the obtained sinters. Formed gaseous products from combustion play the role of the foaming agent during Fe-Al intermetallic alloy sintering. The influence of these additives is also clearly noticeable in chemical composition changes of the final products through the increase of carbon content in the porous structure. This is attributed to the thermal decomposition, namely combustion, of the organic additives.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.