[Kovove materialy - Metallic materials]
    Fri - December 06, 2024 - 19:30 No. of hits : 1804473 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 53 (2015), Issue 3

Low-cost method of the highly porous iron sintering
KVICALA, M., HENDRYCH, A., ŠTAMBORSKÁ, M., VOLODARSKAJA, A., SKOTNICOVÁ, K., ČEGAN T., JUŘICA, J.
vol. 53 (2015), no. 3, pp. 161 - 165
DOI: 10.4149/km_2015_3_161

Abstract
This paper reports a study of low-cost method relating to the preparation of well defined porous iron-based materials. We employed the technique where the impressed iron oxide powder is sintered. We changed the specific volume fraction of sodium chloride as a primary pore forming additive to achieve the total porosity up to 70 % and effective/total porosity rate in a ratio of 0.89 with interconnected pores. The investigations of physical properties with respect to the particle size distribution, powder morphology, density, volume contraction and both effective and total porosity were carried out by laser diffraction (LD), pycnometric measurement, atomic force microscopy (AFM), scanning electron microscopy (SEM) and optical microscopy. Porous iron sintered electrodes represent a suitable alternative to the expensive nickel electrodes.

Key words
iron, natrium chloride, sintering, porosity, surface topography

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Full title of this journal is bilingual: Kovové materiály - Metallic Materials.
The official abbreviation in accordance with JCR ISI is Kovove Mater.


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