Production and Properties of B4C–TiB2 Composites with Isotropic Eutectic Microstructure
| Autor: | O. M. Potapov, Iu. I. Bogomol, Ie. V. Solodkyi, I. O. Husarova |
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| Rok vydání: | 2018 |
| Předmět: |
Zone melting
Materials science Isotropy Metals and Alloys Spark plasma sintering 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 01 natural sciences 0104 chemical sciences Grinding Mechanics of Materials visual_art Metallic materials Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Ceramic Composite material 0210 nano-technology Eutectic system |
| Zdroj: | Powder Metallurgy and Metal Ceramics. 57:209-214 |
| ISSN: | 1573-9066 1068-1302 |
| Popis: | Directionally reinforced B4C–TiB2 eutectic alloys were produced from green powder compacts by floating zone melting. Their mechanical properties were studied over a wide range of temperatures (25–1600°C). The high-temperature strength of the reinforced B4C–TiB2 composites hardly changes with increasing temperature and reaches about 200 MPa at 1600°C. Mechanical grinding and subsequent spark plasma sintering were used to produce reinforced B4C–TiB2 composites with an isotropic eutectic microstructure. The microstructure of the bulk-reinforced ceramic samples was examined. The developed ceramics meet the requirements imposed on high-temperature creepresistant and oxidation-resistant materials for reusable hypersonic vehicles. |
| Databáze: | OpenAIRE |
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