TY - JOUR N2 - The present article describes selected aspects of investment casting technology for manufacturing of open-cell aluminium. The main focus is, among others, on the precursor thickening. Two groups of total 30 samples were produced, basing on open-cell polyurethane foam used as the precursor. Each of the two sample groups was thickened with a different type of suspension consisting of carbonaceous substances and organic binders. The influence of the coating mixture type was compared, leading to conclusions regarding the desired composition and fluidity of the suspensions. Both sample groups of the obtained open-cell aluminium had stochastic cell distributions, the average pore diameter was 5.2 mm and the PPI index was 8. The apparent densities were respectively: 0.485 g/cm3 and 0.312 g/cm3, which reflected the impact of the precursor coating. Additionally, samples from both groups differed in quality. L1 - http://www.czasopisma.pan.pl/Content/113035/PDF/AMM-2019-3-54-Strek.pdf L2 - http://www.czasopisma.pan.pl/Content/113035 PY - 2019 IS - No 3 EP - 1150 DO - 10.24425/amm.2019.129507 KW - metal sponge KW - aluminium sponge KW - investment casting KW - precursor thickening A1 - Stręk, A.M. A1 - Lipowska, B. A1 - Wańczyk, K. PB - Institute of Metallurgy and Materials Science of Polish Academy of Sciences PB - Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences VL - vol. 64 DA - 2019.09.03 T1 - Selected Aspects of Manufacturing of Aluminium Sponge SP - 1145 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/113035 T2 - Archives of Metallurgy and Materials ER -