K. Georgy, C. E. Jiménez, F. García-Moreno, M. Mukherjee
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Processing of AlSi13Mg5 foams using Mg and AlMg50 blowing agents
Aluminium closed-cell foams with superior structure and properties can be produced using Mg-based blowing agents. In this study, AlSi13Mg5 foams were produced via the powder metallurgy route using two different Mg-based blowing agents: pure Mg powders and pre-alloyed AlMg50 powders. Mass spectrometry was performed to determine their hydrogen desorption characteristics. In Mg powder, the peak gas release occurred at 364 °C compared to the delayed peak gas release at 420 °C from AlMg50 powder. The structure and properties of the foams produced using these two blowing agents were compared by performing image analysis and compression tests, respectively. On average, the foams produced using AlMg50 blowing agents exhibited slightly better porous structure and strength. Peak strength of the foams produced using Mg and AlMg50 powder is 7.3 ± 0.6 MPa and 8 ± 0.4 MPa, respectively.
期刊介绍：
The Journal of Porous Materials is an interdisciplinary and international periodical devoted to all types of porous materials. Its aim is the rapid publication
of high quality, peer-reviewed papers focused on the synthesis, processing, characterization and property evaluation of all porous materials. The objective is to
establish a unique journal that will serve as a principal means of communication for the growing interdisciplinary field of porous materials.
Porous materials include microporous materials with 50 nm pores.
Examples of microporous materials are natural and synthetic molecular sieves, cationic and anionic clays, pillared clays, tobermorites, pillared Zr and Ti
phosphates, spherosilicates, carbons, porous polymers, xerogels, etc. Mesoporous materials include synthetic molecular sieves, xerogels, aerogels, glasses, glass
ceramics, porous polymers, etc.; while macroporous materials include ceramics, glass ceramics, porous polymers, aerogels, cement, etc. The porous materials
can be crystalline, semicrystalline or noncrystalline, or combinations thereof. They can also be either organic, inorganic, or their composites. The overall
objective of the journal is the establishment of one main forum covering the basic and applied aspects of all porous materials.
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