Chemical, Phase, and Structural Transformations in the Combustion of Mixtures with Tungsten Oxide with Aluminum
| Autor: | S. L. Silyakov, V. I. Yukhvid |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
010304 chemical physics Oxide chemistry.chemical_element Tungsten 010402 general chemistry Combustion Microstructure 01 natural sciences 0104 chemical sciences Carbide chemistry.chemical_compound chemistry Chemical engineering Impurity Aluminium Phase (matter) 0103 physical sciences Physical and Theoretical Chemistry |
| Zdroj: | Russian Journal of Physical Chemistry B. 13:96-100 |
| ISSN: | 1990-7923 1990-7931 |
| Popis: | In this paper, we studied the regularities of the synthesis of cast carbide-tungsten materials in the combustion of a WO3/Al/Sa/C mixture. The combustion products of the mixture were shown to be cast tungsten carbides with an admixture of Al and an oxide solution of Al2O3-CaO, formed as two layers. A partial replacement of aluminum by calcium in the initial mixture was found to reduce the impurity content of aluminum in W-C. Cast carbide carbide-tungsten materials contain up to 2 wt % C. Their chemical and phase composition and microstructure are determined. |
| Databáze: | OpenAIRE |
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