RT Journal Article
SR Electronic
A1 Nová, Iva
A1 Fraňa, Karel
A1 Machuta, Jiří
A1 Nováková, Iva
T1 Theoretical Calculations of the Foaming Properties of Powder Agents for the Production of Aluminium Foams
JF Manufacturing Technology Journal
YR 2019
VO 19
IS 1
SP 118
OP 122
DO 10.21062/ujep/254.2019/a/1213-2489/MT/19/1/118
UL https://journalmt.com/artkey/mft-201901-0020.php
AB This paper presents the theoretical calculations of the foaming process of selected powder foaming agents (TiH2, CaH2, MgH2, ZrH2, CaCO3 and MgCO3) regarding the volume of gas, relative density and density of the metal foam obtained with respect to the use of a certain amount of powdered blowing agent. This work is carried out in the frame of the university project in which a small subproject is dealing with the problem of the cellular lightweight metal structures. Furthermore by calculating the diffusion of hydrogen in both solid and liquid aluminium there were found results for the duration of the anticipated action of the powdered blowing agent (0.75, 1.0, 1.25, 1.50, 1.75 and 2.0 wt. %).