Electromagnetic Levitator Batch 2 – Undercooling and Demixing of Copper-based Alloys (EML Batch 2 - COOLCOP) - 01.31.17

Overview | Description | Applications | Operations | Results | Publications | Imagery

ISS Science for Everyone

Science Objectives for Everyone
The COOLCOP experiments focus on Copper-Cobalt alloy samples, and the determination of surface tension and interfacial tension of those immiscible alloys. The droplet growths are to be studied during post-flight analysis.
Science Results for Everyone
Information Pending

The following content was provided by I. Egry, and is maintained in a database by the ISS Program Science Office.
Information provided courtesy of the Erasmus Experiment Archive.
Experiment Details

OpNom:

Principal Investigator(s)
I. Egry, Germany

Co-Investigator(s)/Collaborator(s)
M. Kolbe, Germany
D. Chatain, France
L. Battezzati, Italy

Developer(s)
European Space Agency (ESA), Noordwijk, Netherlands

Sponsoring Space Agency
European Space Agency (ESA)

Sponsoring Organization
European Space Agency

Research Benefits
Earth Benefits, Scientific Discovery

ISS Expedition Duration
September 2016 - February 2017

Expeditions Assigned
49/50

Previous Missions
Information Pending

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Experiment Description

Research Overview

Most of the metals used by humans are not pure, but an alloy of different materials. By combining different metals, materials can be concocted that offer the best of their component parts. The stainless steel used in most knives and forks is actually an alloy of one part chromium to 10 parts steel that renders the alloy more resistant to corrosion.
 
COOLCOP investigates cobalt and copper, two metals that do not mix easily on Earth. By observing the process in the Electromagnetic Levitator and looking specifically at surface tension, scientists and ESA’s industrial partners hope to improve metal casting processes on Earth.

Description
Information Pending

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Applications

Space Applications
Industry partners to the projects are seeking to optimize ground processes, and have a direct interest in the knowledge that is gained from the experiments. This can, in turn, find its way into the development of new light-weight, high-performance structural materials for space applications.

Earth Applications
Investigations carried out with the Electromagnetic Levitator (EML) provide both reference data on thermophysical properties and microstructure formation for the same metallic alloy samples. (The microstructure in an alloy influences its characteristic properties such as strength, flexibility and resistance to fatigue.) This information is of importance for feeding accurate data into current numerical models on one side, and also testing these models aiming to predict the solidification profile and related microstructure formation in the alloy samples. This concerns structural steels, magnetic materials, intermetallic materials, glass forming metallic alloys, etc.

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Operations

Operational Requirements and Protocols

The EML facility is used, consisting of: Experiment Module, Experiment Control Electronics and High-Speed Camera Operating System, Levitation Power Supply and Water Cooling Module, Gas Supply Module, and Sample Chamber.
 
One out of 23 samples in Sample Container is used for experiment: Cu67Co33 (ID#28) (sample sharing with NASA QUASI project).
 
After container installation by crew, all activities are fully commanded by the ground. Sample processing is executed during crew sleep period, with continuous Ku and S band coverage so that micro-g-level and vibrations are known.
 
General: 1 run per sample with 8 melting cycles per sample.
Samples to be returned: Cu67Co33.

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Decadal Survey Recommendations

Information Pending

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Results/More Information

Information Pending

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Related Websites
Electromagnetic Levitator used in the COOLCOP Experiment

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Imagery