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

Published 4 issues per year

ISSN Print: 1093-3611

ISSN Online: 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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EXPERIMENTAL SIMULATION OF THERMO-MECHANICAL ABLATION OF CARBON/PHENOLIC COMPOSITE UNDER THE IMPACT OF LIQUID ALUMINA PARTICLES

Volume 9, Issue 3, 2005, pp. 431-441
DOI: 10.1615/HighTempMatProc.v9.i3.90
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ABSTRACT

In the Ariane V rocket, the propulsion at take-off is provided by aluminum-enriched propergol. The combustion of the propergol results in the formation of alumina droplets that form a liquid film on the nozzle wall. The liquid material reacts with the substrate giving rise to a degradation of the nozzle.
The design of the proper geometry of the nozzle requires a good knowledge of the recession behavior of the base material and heat transfer process. To validate the aerothermochimical model developed by SNECMA, an experimental simulation of the harsh conditions undergone by the nozzle material has been developed.
This work deals with the characterization and the quantification of recession behavior of an ablative composite material under both alumina and plasma jets. This paper presents the experimental setup which combines two direct current plasma torches that are used both to fuse and accelerate alumina particles. The behavior of the droplets before impact (velocity and temperature) and the plasma fields close to the target are examined. A thermal characterization of the composite is made by means of pyrometers, thermocouples and calorimetric measurements.
The recession measurement is obtained through an imaging technique and a feedback control of the position of top of the sample tested.

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