ЗНОСОСТІЙКІСТЬ ПОЛІКРИСТАЛІВ ТА КОМПОЗИТУ «АЛМАЗ – КАРБІД ВОЛЬФРАМУ», СПЕЧЕНИХ З ПОРОШКІВ АЛМАЗУ, СИНТЕЗОВАНИХ В СИСТЕМІ Mg–Zn–C, ПІД ЧАС ТОЧІННЯ КЕРНА ГРАНІТУ
Samples of polycrystals and the "diamond - tungsten carbide" composite were obtained by high pressure sintering of diamond powders synthesized in the Mg-Zn-C system. A study of the wear resistance of the obtained samples was carried out by turning a cylindrical core of granite from the Kor...
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| Date: | 2022 |
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| Main Authors: | , , , , |
| Format: | Article |
| Language: | Ukrainian |
| Published: |
Институт сверхтвердых материалов им. В. Н. Бакуля Национальной академии наук Украины
2022
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| Subjects: | |
| Online Access: | http://altis-ism.org.ua/index.php/ALTIS/article/view/245 |
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| Journal Title: | Tooling materials science |
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Tooling materials science| Summary: | Samples of polycrystals and the "diamond - tungsten carbide" composite were obtained by high pressure sintering of diamond powders synthesized in the Mg-Zn-C system. A study of the wear resistance of the obtained samples was carried out by turning a cylindrical core of granite from the Korostyshev field of the X category of drillability. It is shown that an increase to 40% of the content of diamond particles with a size of more than 80 μm in the initial mixture for sintering polycrystals at the same density and close values of hardness of the obtained samples increases their wear resistance by 5.8 times. The wear resistance of the samples of the "diamond - tungsten carbide" composite obtained from the specified mixture of diamond powders has the level of wear resistance of polycrystals sintered from finely dispersed diamond powder. |
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