Improving heat resistance of polycrystalline diamond compact cutters with co–si–b binder for rock drilling
Polycrystalline diamond compact (PDC) cutters are widely utilized in oil and gas exploitation and geological drilling works, as their excellent comprehensive properties. The cobalt as binders exists in PDC is also the catalyst for diamond transforming into graphite under the high temperature, which...
Збережено в:
| Дата: | 2017 |
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| Автори: | , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут надтвердих матеріалів ім. В.М. Бакуля НАН України
2017
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| Назва видання: | Породоразрушающий и металлообрабатывающий инструмент – техника и технология его изготовления и применения |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/134061 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Improving heat resistance of polycrystalline diamond compact cutters with co–si–b binder for rock drilling / B.C. Liu, C. Li, S.Q. Liu, X. Cao// Породоразрушающий и металлообрабатывающий инструмент – техника и технология его изготовления и применения: Сб. науч. тр. — К.: ІНМ ім. В.М. Бакуля НАН України, 2017. — Вип. 20. — С. 6-10. — Бібліогр.: 11 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | Polycrystalline diamond compact (PDC) cutters are widely utilized in oil and gas exploitation and geological drilling works, as their excellent comprehensive properties. The cobalt as binders exists in PDC is also the catalyst for diamond transforming into graphite under the high temperature, which will decrease the thermal stability of PDC seriously. So it is necessary to improving the heat resistance of PDC for drilling works. In this paper, PDC sintered with 10Co–3Si–1B binders had been prepared to decrease the content of cobalt in PDC and improve the heat resistance by forming SiC and B4C. The thermo-gravimetric analysis (TGDSC) results indicated that the beginning of oxidizing temperature of well-sintered PDC with 10Co–3Si–1B is up to 840℃, which improve the heat resistance significantly.
Key words: polycrystalline diamond, cutters, heat resistance |
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