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ARTEC - a furnace module for directional solidification and quenching experiments in microgravity

Balter, Michael and Neumann, Christian and Bräuer, Dirk and Dreißigacker, Christoph and Steinbach, Sonja (2019) ARTEC - a furnace module for directional solidification and quenching experiments in microgravity. Review of Scientific Instruments, 90 (12), pp. 125117-1. American Institute of Physics (AIP). doi: 10.1063/1.5124822. ISSN 0034-6748.

Full text not available from this repository.

Official URL: https://doi.org/10.1063/1.5124822

Abstract

A new experiment design for directional solidification experiments with high cooling rates under microgravity conditions is presented. The aerogel-based furnace module ARTEC (AeRogel TEchnology for Cast alloys) developed at DLR extends the earlier presented sounding rocket facility ARTEX by enabling a transition from low to high solidification velocities and a simultaneous operation of five independent furnaces in the same sounding rocket module. The furnaces for directional solidification are equipped with thermally insulating aerogels as a crucible material. Their optical transparency allows the control of the solidification parameters (velocity and temperature gradient) with optical methods in the lab. In ARTEC a drastically increased solidification velocity is achieved by contacting the sample with a moveable cooling-rod during processing. Therefore, a better theoretical understanding of the influence of a sudden change of solidification velocity on microstructure formation is obtained. Carrying out experiments in microgravity gives access to purely diffusive solidification conditions. Hence, convection free-growth can be compared with growth subject to natural (earth) and/or forced-convection (earth and space). Furthermore, alloys with high density differences in their alloy components, and, hence, also between the primary solidifying phase and the surrounding liquid can be studied without the negative influence of fluid-flow or macrosegregation being present.

Item URL in elib:https://elib.dlr.de/132465/
Document Type:Article
Title:ARTEC - a furnace module for directional solidification and quenching experiments in microgravity
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Balter, Michaelmichael.balter (at) dlr.deUNSPECIFIED
Neumann, ChristianChristian.Neumann (at) dlr.deUNSPECIFIED
Bräuer, Dirkdirk.braeuer (at) dlr.deUNSPECIFIED
Dreißigacker, ChristophChristoph.Dreissigacker (at) dlr.deUNSPECIFIED
Steinbach, Sonjasonja.steinbach (at) dlr.deUNSPECIFIED
Date:27 December 2019
Journal or Publication Title:Review of Scientific Instruments
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:90
DOI :10.1063/1.5124822
Page Range:pp. 125117-1
Publisher:American Institute of Physics (AIP)
Series Name:Review of Scientific Instruments
ISSN:0034-6748
Status:Published
Keywords:solidification, ARTEC, MAPHEUS, quenching, Al-Ge
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 - Materials Research and Microgravity (MuM)
Location: Köln-Porz
Institutes and Institutions:Institute of Materials Physics in Space > Scientific Experiments MP
Deposited By: Steinbach, Dr.rer.nat. Sonja
Deposited On:07 Jan 2020 15:09
Last Modified:07 Jan 2020 15:09

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