Manufacturing Technology 2021, 21(1):109-116 | DOI: 10.21062/mft.2021.017

Monitoring the influence of sodium chloride particle size on the physical, me-chanical properties and structure of samples of porous aluminium materials

Iva Nova, Karel Fraņa, Pavel Solfronk, David Korecek
Faculty of Mechanical Engineering, Technical University of Liberec, 1402/2, Czech Republic.

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.

Keywords: Porous aluminium materiuls, Sodium chloride, Relative density, Compressive strength, Young“s tensile modulus.
Grants and funding:

Supported by the project “Hybrid materials for hierarchical structures”, research goal: Composite materials and structures, research program: Materials and structures on the metal basis, reg. no. CZ.02.1./0.0/0.0/16_019/0000843 provided by the European Union and the Czech government.

Received: August 27, 2020; Revised: January 13, 2021; Accepted: January 27, 2021; Prepublished online: February 10, 2021; Published: February 24, 2021  Show citation

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Nova I, Fraņa K, Solfronk P, Korecek D. Monitoring the influence of sodium chloride particle size on the physical, me-chanical properties and structure of samples of porous aluminium materials. Manufacturing Technology. 2021;21(1):109-116. doi: 10.21062/mft.2021.017.
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