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

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ISSN Druckformat: 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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OPEN POROUS METALLIC FOAMS WITH THERMAL BARRIER COATINGS AND COOLING HOLE ARRAY FOR HIGH TEMPERATURE TURBINE APPLICATIONS

Volumen 11, Ausgabe 3, 2007, pp. 321-343
DOI: 10.1615/HighTempMatProc.v11.i3.20
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ABSTRAKT

Open porous and high temperature resistant Ni-base structures are developed for the requirements of an effusion cooling. A metallic foam, that is produced by the SlipReactionFoamSintering (SRFS)- process, a powder metallurgical process, is used as the open porous structure. To withstand the high temperatures in the combustor of a gas turbine of up to 1520 °C the samples are covered with a Thermal Barrier Coating (TBC) using thermal spraying processes, which hermetically seals the open porous structures. Laser drilling is used to form blind holes through the TBC into the metallic foam in order to establish connections to a number of pores, which make the mass flow of the cooling fluid possible. Therefore, the pores must not be clogged by molten material during laser drilling. The aim of this paper is to point out the general feasibility of the production steps of the open porous multi-layer component made out of the open porous foam and the thermal barrier coating, which is then opened by laser drilling. First design suggestions are given for the foam pore structure to enable the application of the TBC and for the dimension of the laser drilled holes.

REFERENZIERT VON
  1. Kovalev O. B., Zaitsev A. V., Novichenko D., Smurov I., Theoretical and Experimental Investigation of Gas Flows, Powder Transport and Heating in Coaxial Laser Direct Metal Deposition (DMD) Process, Journal of Thermal Spray Technology, 20, 3, 2011. Crossref

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