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High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

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ISSN Печать: 1093-3611

ISSN Онлайн: 1940-4360

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 0.4 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.1 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00005 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.07 SJR: 0.198 SNIP: 0.48 CiteScore™:: 1.1 H-Index: 20

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CHARACTERIZATIONS OF THE CARBON ARC AT FULLERENE SYNTHESIS

Том 8, Выпуск 2, 2004, pp. 221-231
DOI: 10.1615/HighTempMatProc.v8.i2.70
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Краткое описание

The arc between graphite electrodes 6 mm in diameter under conditions favorable for fullerene synthesis (I= 60÷120 A, U= 20÷40 V, L = 1÷6 mm, p = 1÷200 torr) is considered. The parameters of plasma and macroparticles, time-spatial structure of the arc as well as properties of obtained materials were studied. For the first time it was found out that the electric arc between graphite electrodes exists in two modes. The arc from one mode passes in another spontaneously. In the non-stationary mode the arc looks like two spiral channels coming from an anode spot and revolving on lateral surface of cylindrical electrodes. The observed unsteadiness arises from the development of overheating instability of heterogeneous plasma. It was ascertained that the growing part of voltage-current characteristic of the arc corresponds to its double-mode operation. The mechanism of cathode deposit formation in the carbon arc by macroparticles arisen from condensation and coalescence of products of graphite anode erosion was developed. Within the boundary layer of the particle collision with a cathode such conditions are realized under which their melting is possible, and then the stage of quasiepitaxial growth of deposit takes place from a liquid phase.

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