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Интеллектуальная Система Тематического Исследования НАукометрических данных |
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INVESTIGATION OF CARBON CATHODE SURFACE BEFORE AND AFTER THE PASSAGE OF COMBINED DC VACUUM ARC WITH SUPERIMPOSED HIGH-CURRENT ARC PULSESстатья
- Авторы: Zavaleyev V., Walkowicz J., Moszyński D.
- Журнал: Problems of Atomic Science and Technology, Series: Plasma Physics
- Том: 4
- Номер: 1562-6016
- Год издания: 2016
- Первая страница: 76
- Последняя страница: 83
- Аннотация: The paper presents the results of studies of carbon cathode surface before and after the passage of the combined DC vacuum-arc with superimposed high-current arc pulses. Investigations of surface morphology of carbon cathode showed, that secondary nuclei of high-density are formed after passing of the combined DC-pulse vacuum-arc, which results in the formation of a globular structures. The phase structure analysis by Raman spectroscopy showed that even at a minimum operation time (5 s) of the combined DC-pulse vacuum-arc broadening of the peaks 1355 and 1583 cm-1 occurs, which means that the carbon cathode surface undergo phase transformation. Results obtained by XPS spectroscopy demonstrate that the globular structures formed on the cathode surface are composed of sp3- bonded carbon atoms and carbon-oxygen bonds.
- Добавил в систему: Завалеев Виктор Анатольевич