ВПЛИВ АРМУВАННЯ МІКРОВОЛОКНАМИ Si3N4 ТА Mg2B2O5 НА ВЛАСТИВОСТІ КОМПОЗИТІВ НА ОСНОВІ cBN
ABSTRACT Three types of cBN-based composites (without whiskers, reinforced with whiskers of Si3N4 and reinforced with whiskers of Mg2B2O5) have been obtained by High Pressure-High Temperature (HPHT) sintering. Density, Young modulus, hardness, Poisson ratio and fracture toughness have been measured...
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| Datum: | 2019 |
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| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Институт сверхтвердых материалов им. В. Н. Бакуля Национальной академии наук Украины
2019
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| Schlagworte: | |
| Online Zugang: | http://altis-ism.org.ua/index.php/ALTIS/article/view/112 |
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| Назва журналу: | Tooling materials science |
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Tooling materials science| Zusammenfassung: | ABSTRACT
Three types of cBN-based composites (without whiskers, reinforced with whiskers of Si3N4 and reinforced with whiskers of Mg2B2O5) have been obtained by High Pressure-High Temperature (HPHT) sintering. Density, Young modulus, hardness, Poisson ratio and fracture toughness have been measured for all samples. cBN-based composites, that were reinforced by the whiskers of Si3N4, are characterized by better mechanical properties (hardness, fracture toughness) thаn non-reinforced cBN-based composites. But reinforcement by Mg2B2O5 whiskers was insufficient, because Mg2B2O5 whiskers have low thermochemical stability.
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