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

Publicou 4 edições por ano

ISSN Imprimir: 1093-3611

ISSN On-line: 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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HETEROGENEITY OF TEXTURES AND STRESSES IN A LARGE TUNGSTEN PVD FILM

Volume 2, Edição 3, 1998, pp. 401-418
DOI: 10.1615/HighTempMatProc.v2.i3.90
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RESUMO

This study deals with texture and stresses evaluations on tungsten coating on a large steel plate (150*240 mm2), as a function of its position with the magnetron target.
The films obtained by Physical Vapour Deposition process often reveal a fiber texture, implying a residual stress determination impossible by the usual X-rays diffraction method. The beam curvature technique is also difficult to apply in the case of thick substrates, justifying our interest of the x-rays diffraction methods. The stress determination method is then the Ideal Directions Method.
· About the heterogeneity all over the film, at the coating surface, an almost perfect <111> fiber texture with slight reinforcements and a very high compressive (around -3000 MPa) and almost isotropic stress level are observed. The fiber texture presents a progressive W inclination in connection with the columnar morphology, according to the short and long target axis; this inclination is in relation with ion incidence direction. About stresses, they are rather homogeneous all over the surface with a small decrease.
· About the heterogeneity within the thickness, the <111> fiber texture transforms towards a (110) <110> texture toward the interface and a slight stress gradient is observed.

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