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dc.contributor.author
Cavaliere, Andrea
dc.contributor.supervisor
Warnicke, Peter
dc.contributor.supervisor
Pouchon, Manuel A.
dc.date.accessioned
2019-02-15T11:01:08Z
dc.date.available
2019-02-01T12:37:56Z
dc.date.available
2019-02-12T10:57:23Z
dc.date.available
2019-02-13T11:35:46Z
dc.date.available
2019-02-15T11:01:08Z
dc.date.issued
2019-01-18
dc.identifier.uri
http://hdl.handle.net/20.500.11850/322576
dc.identifier.doi
10.3929/ethz-b-000322576
dc.description.abstract
Oxide-dispersion-strengthened (ODS) steel is a material that is being studied for its potential in high-temperature and high-irradiation applications, such as nuclear fusion reactors or IV generation fission reactors. Its properties derive from the presence of nano-dispersed oxide particles that act as a barrier against the movement of dislocations, hence reducing susceptibility to creep, and as sinks for irradiation-induced defects, thus reducing the stress in the metal matrix itself. In this study, a powder for additive manufacturing is produced with mechanical alloying (MA) in a planetary ball mill; seven sets of powders are produced in this study, each with a different set of milling parameters, so that the best-suited specimen for the chosen manufacturing process may be selected. The powder is studied with a Scanning Electron Microscope (SEM) imaging and optical microscopy in order to characterize the formation of the oxides with an acceptable level of detail and to determine the size distribution of the powder particles. The results show the choice of acetic acid and ethanol as process control agents for dry grinding of the powders does not improve the characteristics of the end product to a significant extent. An increase in the grinding time seems more effective in increasing the yield and reducing the average size of the particles to an acceptable range, but it may result in a compromise in terms of the powder’s flowability.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Paul Scherrer Institut (PSI), Nuclear Energy and Safety Department (NES), Laboratory for Nuclear Materials (LNM)
en_US
dc.rights.uri
http://rightsstatements.org/page/InC-NC/1.0/
dc.subject
Nuclear Materials
en_US
dc.subject
ODS Steel
en_US
dc.subject
Mechanical Alloying
en_US
dc.subject
Additive Manufacturing
en_US
dc.subject
Optical Microscopy
en_US
dc.subject
SEM
en_US
dc.subject
Powder Preparation and Analysis
en_US
dc.title
Preparation and characterization of mechanically alloyed, yttria containing steel powder for additive manufacturing of dispersion strengthened steels
en_US
dc.type
Student Paper
dc.rights.license
In Copyright - Non-Commercial Use Permitted
ethz.title.subtitle
Semester project – A. Cavaliere
en_US
ethz.journal.volume
TM-46-19-01
en_US
ethz.size
20 p.
en_US
ethz.publication.place
Villigen
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.
en_US
ethz.tag
Semester Project
en_US
ethz.date.deposited
2019-02-01T12:37:59Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.identifier.internal
TM-46-19-01
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2019-02-15T11:01:15Z
ethz.rosetta.lastUpdated
2019-02-15T11:01:15Z
ethz.rosetta.versionExported
true
ethz.COinS
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