Склад, структура, властивості (механічні, стійкість до окиснення, електричний опір) та працездатність армованих мікроволокнами матеріалів на основі cBN зі зв'язкою NbN
Three types of cBN-based composites (without whiskers, reinforced with Si3N4 whiskers (Si3N4w) and reinforced with SiC whiskers (SiCw)) obtained by High Pressure-High Temperature (HPHT) sintering. Density, Young’s modulus, Bulk modulus, Poisson ratio, hardness...
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| Datum: | 2020 |
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| Hauptverfasser: | , , , , , , , , , |
| Format: | Artikel |
| Sprache: | Ukrainian |
| Veröffentlicht: |
Институт сверхтвердых материалов им. В. Н. Бакуля Национальной академии наук Украины
2020
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| Schlagworte: | |
| Online Zugang: | http://altis-ism.org.ua/index.php/ALTIS/article/view/192 |
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| Назва журналу: | Tooling materials science |
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Tooling materials science| Zusammenfassung: | Three types of cBN-based composites (without whiskers, reinforced with Si3N4 whiskers (Si3N4w) and reinforced with SiC whiskers (SiCw)) obtained by High Pressure-High Temperature (HPHT) sintering. Density, Young’s modulus, Bulk modulus, Poisson ratio, hardness and fracture toughness, oxidative resistance and electrical resistivity have been measured. Whisker-reinforcement by the help of all above-mentioned whisker’s types (SiCw, Si3N4w) was lead to the improvement of mechanical properties (hardness, fracture toughness), oxidative resistance and electrical conductivity. Despite on this only SiCw-reinforcement was effective wear resistance improvement due to the higher chemical resistance of SiCw compared to Si3N4w.
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