Сумісна кристалізація ниткоподібного та глобулярного вуглецю на алмазі та cBN при створенні композиційних абразивних термостійких порошків, призначених для шліфувального інструменту
The features of co-crystallization of filamentous and globular carbon in a mixture of powders of superhard materials (micron powder of cubic boron nitride, grinding powder of synthetic diamond), leading to the formation of composite abra...
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| Date: | 2019 |
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| Main Author: | |
| Format: | Article |
| Language: | Russian |
| Published: |
Институт сверхтвердых материалов им. В. Н. Бакуля Национальной академии наук Украины
2019
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| Subjects: | |
| Online Access: | http://altis-ism.org.ua/index.php/ALTIS/article/view/89 |
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| Journal Title: | Tooling materials science |
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Tooling materials science| Summary: | The features of co-crystallization of filamentous and globular carbon in a mixture of powders of superhard materials (micron powder of cubic boron nitride, grinding powder of synthetic diamond), leading to the formation of composite abrasive material under conditions of physical-chemical gas-phase synthesis at a pressure below atmospheric, are studied. It has been established that during the formation of a carbon binder from carbon-containing gas (methane) on the surface of diamond and cubic boron nitride particles, successive formation of filamentous and globular carbon structures linking the particles of superhard materials occurs. The possibility of modifying the produced composite powders by heat-resistant coatings based on inorganic substances (oxides and chlorides of metals and non-metals) is shown. |
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