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- Title
Effect of Charge Components on the Physical and Mechanical Properties of Porous Permeable Cermet Materials.
- Authors
Kanapinov, M. S.; Kashkarov, G. M.; Novoselova, T. V.; Tubalov, N. P.; Tolmacheva, L. V.
- Abstract
In this paper, the base of the charge used for the production of porous materials is made up of industrial waste generated by machine-building factories, which consists of metal oxides (oxide scale of alloy steel) and metal powders. Therefore, it is important to study the creation of new porous permeable cermet materials (PPCMs) with partial or complete addition of the metal and metal oxide powders. The effect of chromium oxide, as well as chromium and nickel metals on the physical, mechanical, and functional properties of the materials, obtained by the self-propagating high-temperature synthesis method, was studied. The physical and mechanical characteristics of the obtained materials with different component content of the charge have been determined. The introduction of chromium oxide into the Fe2O3-Al2O3–Al reaction mixture creates a more homogeneous alloy structure with the formation of continuous iron oxides, while the introduction of chromium leads to a more uniform distribution of cermet component in the matrix, which enables a more uniform distribution of the structural components. The introduction of nickel into the initial charge leads to the formation of Ni-Al intermetallic compounds in the Fe-Ni-Al reaction system. An exothermic nature of this process causes higher solubility of Ni in Al and decreased phase separation. This also results in a decreased pore size along with increased strength and corrosion resistance of the PPCMs.
- Subjects
SELF-propagating high-temperature synthesis; INTERMETALLIC compounds; CHROMIUM oxide; POROUS materials; METALLIC oxides; DIESEL motor exhaust gas; IRON oxides; POROUS metals
- Publication
Refractories & Industrial Ceramics, 2021, Vol 61, Issue 6, p671
- ISSN
1083-4877
- Publication type
Article
- DOI
10.1007/s11148-021-00540-5