Effects of initial composition of a multicomponent powder mixture on the phase formation mechanism of synthesis products in the combustion mode | Izvestiya vuzov. Fizika. 2022. № 4. DOI: 10.17223/00213411/65/4/62

Effects of initial composition of a multicomponent powder mixture on the phase formation mechanism of synthesis products in the combustion mode

The work proposes and numerically investigates a model of combustion synthesis of a composite material in the multicomponent powder system with detailed reaction scheme of the process taking into account the dependence of the properties on the structure and composition of the mixture. It is shown that, for the experimental conditions, the main phases of the synthesis product are TiC, Al2O3, FeAl, FeAl3, as well as Fe and TiFe. The work establishes the relation between the reaction front propagation velocity and the weight fraction Y of the components of two-component stoichiometric mixtures (1-Y)(Ti+C)+Y×(Fe2O3+2Al)) with the minimum at Y = 0.43±0.2. It is demonstrated that the results received at limiting cases (Y→0, Y→1) are thermodynamically adequate.

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Keywords

Ti-Al-C-Fe2O3 system, cermets, combustion synthesis

Authors

NameOrganizationE-mail
Chumakov Y.A.Institute of Strength Physics and Materials Science of SB RASchya@ispms.ru
Всего: 1

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 Effects of initial composition of a multicomponent powder mixture on the phase formation mechanism of synthesis products in the combustion mode | Izvestiya vuzov. Fizika. 2022. № 4. DOI: 10.17223/00213411/65/4/62

Effects of initial composition of a multicomponent powder mixture on the phase formation mechanism of synthesis products in the combustion mode | Izvestiya vuzov. Fizika. 2022. № 4. DOI: 10.17223/00213411/65/4/62