In-situ carbide reinforced aluminium metal matrix composites obtained in pulsed arc plasma discharge
| Parent link: | Ceramics International.— .— Amsterdam: Elsevier Science Publishing Company Inc. Vol. 51, iss. 14.— 2025.— P. 19080-19090 |
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| Zusammenfassung: | Title screen Aluminium matrix composites are popular due to the excellent ductility, corrosion resistance, reusability and formability of aluminium, as well as the high rigidity, strength, hardness and wear resistance of the ceramic component. However, achieving the predicted high physical and mechanical properties still remains an urgent task, since the common ex-situ approaches for obtaining mixed compositions results in decreasing the final parameters of the bulk samples. In this paper, a unified strategy for obtaining bulk aluminium matrix composites with improved mechanical properties has been demonstrated. Reinforcing particles in the form of tungsten, silicon and boron carbides are introduced into the metal matrix during pulsed process of high-speed pulsed thermal plasma spraying. The proposed approach results in obtaining composite materials with a variable content of the carbide phase (from 5.85 to 16.38 %) depending on the initial process conditions. High-speed pulsed co-spraying of MMC components provides a uniform distribution and polymodal particles size range from 10 nm to 20 μm. When producing bulk samples, the unique structure of as-prepared powder materials is a key factor in achieving a high degree of densification (up to 99 %) and improved physical and mechanical properties (103–215 HV) compared to samples from commercially available MMC components (47–62 HV). The proposed method of in-situ combining the metal matrix material (aluminium) and the reinforcing ceramic component (superhard carbide) prevents bulk samples from a high porosity and particles recrystallization that sufficiently improve the final properties of metal matrix composites Текстовый файл AM_Agreement |
| Sprache: | Englisch |
| Veröffentlicht: |
2025
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| Schlagworte: | |
| Online-Zugang: | https://doi.org/10.1016/j.ceramint.2025.02.087 |
| Format: | Elektronisch Buchkapitel |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=680731 |