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

Publication de 4  numéros par an

ISSN Imprimer: 1093-3611

ISSN En ligne: 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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THE ROLE OF THERMAL SPIKES IN RADIATION STABILITY OF METAL NANOWIRES UNDER EXPOSURE TO CONTINUOUS AND POWERFUL PULSED ION BEAMS

Volume 21, Numéro 2, 2017, pp. 91-107
DOI: 10.1615/HighTempMatProc.2017022843
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RÉSUMÉ

The aim of this work is to investigate radiation stability of nanowires of pure Ni and iron–nickel alloy Fe0.56Ni0.44 (fabricated by matrix synthesis using polymer track membranes) under irradiation with continuous beams of Ar+ and Xe+ ions (E = 20 keV, j = 300 μA/cm2) and on exposure to a powerful pulsed 85% C+ + 15% H+ ion beam under conditions of generation of only one ion pulse (E = 250 keV, j = 100 A/cm2, τ = 90 ns). The assumption is made that the thermalized regions of dense cascades of atomic displacements play an important role in changing the structure of nanowires. These regions are nanoscale zones of explosive energy release (thermal spikes) heated to several thousand degrees (eventually they are observed on the surface of nanowires in the form of nanosized frozen droplets). Calculations have shown that integral heating of nanowires by ion beams in a continuous mode is insufficient for their total melting. The answer to a similar question about global melting during irradiation in a pulse mode depends on the orientation of nanowires relative to the ion beam. Bending and fracture of nanowires undergone melting can be explained by the propagation of post cascade shock waves.

CITÉ PAR
  1. Averkiev I.K., Bakieva O.R., Nemtsova O.M., Kolotov A.A., Gil'mutdinov F.Z., Changes in the chemical compound and local atomic structure of ultrathin surface layers of Fe due to implantation of argon and oxygen ions, Applied Surface Science, 539, 2021. Crossref

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