Composites of the cBN–Si₃N₄ system reinforced by SiCw for turning tools
The cBN–Si₃N₄–SiCw composites with different SiCw contents up to 20 vol % have been produced at high pressure of 8.0 GPa and high temperature of 2500 K. It has been defined that the Young modulus of the composites were within 740–846 GPa, the Vickers hardness and fracture toughness values were 37.5–...
Збережено в:
| Дата: | 2016 |
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| Автори: | , , , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут надтвердих матеріалів ім. В.М. Бакуля НАН України
2016
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| Назва видання: | Сверхтвердые материалы |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/131170 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Composites of the cBN–Si₃N₄ system reinforced by SiCw for turning tools / A.S. Osipov, P. Klimczyk, S. Cygan, Iu.A. Melniichuk, I.A. Petrusha, L. Jaworska // Сверхтвердые материалы. — 2016. — № 1. — С. 3-11. — Бібліогр.: 16назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The cBN–Si₃N₄–SiCw composites with different SiCw contents up to 20 vol % have been produced at high pressure of 8.0 GPa and high temperature of 2500 K. It has been defined that the Young modulus of the composites were within 740–846 GPa, the Vickers hardness and fracture toughness values were 37.5–42.0 GPa and 11.4–12.9 MPa∙m¹/², respectively. An important feature of the composite microstructure is the breaking of SiCw as a result of HPHT action. It has been shown that at the addition of 10 vol % SiCw to the structure of a cBN–Si₃N₄ composite the interrupted turning of hardened steel results in the flank wear reduction up to 20%. |
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