PT  - JOURNAL ARTICLE
AU  - Nova, Iva
AU  - Fraňa, Karel
AU  - Solfronk, Pavel
AU  - Korecek, David
TI  - Monitoring the influence of sodium chloride particle size on the physical, me-chanical properties and structure of samples of porous aluminium materials
DP  - 2021 Feb 24
TA  - Manufacturing Technology Journal
PG  - 109--116
VI  - 21
IP  - 1
AID - 10.21062/mft.2021.017
IS  - 12132489
AB  - The paper deals the production of porous aluminum materials that are characterized by lower density and mechanical properties. Samples of porous aluminium materials were produced on the basis of the developed methodology that applied sodium chloride particles of different sizes (average size 4, 6 and 9 mm). The AlSi12 foundry alloy was preffered for the production of the aluminium porous material. As part of the experiments, samples of porous aluminium material in the shape of a truncated cone were made. The cavity of the foundry mould was in the shape of a truncated cone with diameters: D = 0.047 m, d = 0.040 m and height v = 0.040 m. The material properties were determined on the produced samples. Their weight, volume and their density, relative density were calculated. Based on empirical relations, their value of Young's modulus of elasticity and value of thermal conductivity were determined. The compressive strength of selected samples was monitored as well. The value of Young's modulus of elasticity was determined from the measured stress-strain course. Furthemore, the porosity of the produced samples was evaluated on a scanning microscope.