TY - JOUR AU - Gutiérrez-Vázquez, J. A. AU - Oñoro, J. PY - 2010/06/30 Y2 - 2024/03/29 TI - Production and behaviour of aluminium foams with different density by AlSi12 precursor JF - Revista de Metalurgia JA - Rev. metal. VL - 46 IS - 3 SE - Technical Notes DO - 10.3989/revmetalm.0841 UR - https://revistademetalurgia.revistas.csic.es/index.php/revistademetalurgia/article/view/830 SP - 274-284 AB - Closed cell aluminium foams were prepared by powder metallurgical method in three different ranges of density using AlSi12 precursor. The objective has been to determine by means of tests the effect that has the density of these materials regarding its mechanical behaviour. The used precursor contained 0.4% of foaming agent of titanium hydride (TiH<sub>2</sub>), mixed with aluminum and silicon in appropriate amounts to achieve the commercial composition of the AlSi12 precursor. Once cut the samples thermal treatments of foaming were made of 630 °C to 750 °C, by 3 to 20 minutes. The best solidification conditions were determined to avoid the collapse by means of forced air. The samples were prepared with the same weight to different densities, having itself obtained that the best mechanical behaviour was achieved in the high density foams, of 0.70 to 0.81 g/cm<sup>3</sup>. ER -