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Gas-loading furnace for deuterium-charged alloy-casting rockets

Werner, Thomas and Lehmann, Patrick and Baumann, Julianne and Kargl, F and Tyburska-Püschel, Beata (2020) Gas-loading furnace for deuterium-charged alloy-casting rockets. Review of Scientific Instruments, 91, 043901. American Institute of Physics (AIP). doi: 10.1063/5.0004356. ISSN 0034-6748.

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Official URL: https://aip.scitation.org/doi/10.1063/5.0004356

Abstract

A furnace was developed and characterized to allow for safe and controlled gas-loading or degassing of alloys. This oven is able to process samples under varying atmospheres, such as high vacuum or nitrogen containing 10 vol. % deuterium, as well as for pressures up to 800 hPa. Thermal desorption spectroscopy and scanning electron microscopy demonstrate the enhancing effects of high loading-gas concentration, high pressures, high temperatures above liquidus (50-150 K above the liquidus temperature of the cast hypoeutectic aluminum-copper model-alloy), and long holding times (up to 60 min) on the amount of retained gas in the solidified sample. Lack of copper segregation in the casting is confirmed by energy dispersive x-ray diffraction and Rutherford backscattering spectroscopy. It is shown that the facility allows for the controlled generation of distinct amounts of gas pores, down to a nil amount (only shrinkage porosity appearing in the sample).

Item URL in elib:https://elib.dlr.de/141524/
Document Type:Article
Additional Information:This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Review of Scientific Instruments 91, 035114 (2020) and may be found at https://aip.scitation.org/doi/10.1063/5.0004356
Title:Gas-loading furnace for deuterium-charged alloy-casting rockets
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Werner, ThomasThomas.Werner (at) dlr.deUNSPECIFIED
Lehmann, PatrickPatrick.Lehman (at) dlr.deUNSPECIFIED
Baumann, JulianneJuliane.Baumann (at) dlr.dUNSPECIFIED
Kargl, FInstitut für Materialphysik im Weltraum, Deutsches Zentrum für Luft- und Raumfahrt (DLR), 51170 Köln, GermanyUNSPECIFIED
Tyburska-Püschel, BeataBeata.Tyburska-Pueschel (at) dlr.deUNSPECIFIED
Date:20 April 2020
Journal or Publication Title:Review of Scientific Instruments
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:91
DOI:10.1063/5.0004356
Page Range:043901
Publisher:American Institute of Physics (AIP)
ISSN:0034-6748
Status:Published
Keywords:hydrogen porosity, gas-loading, metal alloys, casting
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Research under Space Conditions
DLR - Research theme (Project):R - Material Design and New Materials, R - Materials Research and Microgravity (MuM)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space
Deposited By: Kargl, Dr Florian
Deposited On:30 Mar 2021 20:53
Last Modified:01 May 2021 03:00

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