<div class="csl-bib-body">
<div class="csl-entry">Yakymovych, A., Flandorfer, H., Kaptay, G., Fischer, L., Wodak, I., & Khatibi Damavandi, G. (2025, August). <i>Enthalpy effect adding Fe to liquid Sn: difference between bulk and nanosized Iron</i> [Conference Presentation]. 13th International Conference “Nanotechnologies and Nanomaterials” NANO-2025, Ukraine. http://hdl.handle.net/20.500.12708/225956</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/225956
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dc.description.abstract
The present study is focused on the investigations of the enthalpy of mixing of Sn-rich Fe-Sn liquid alloys by small drops of solid Fe in bulk and nanosized form into the liquid Sn. The measurements were performed at about 1073 K under Ar flow. The enthalpy of mixing has been calculated based on the heat effects recorded after each separate drop and shown positive (endothermic) values indicating that the heat is absorbed during the process.
The measured enthalpy consists of the molar enthalpy increment of the added element (heating and melting) and the enthalpy of mixing. Additions of the solid Fe in nanosized form have shown less positive values of the measured enthalpy compared to the additions in bulk form. It relates to the loss of the surface enthalpy of the nanoparticles on dissolution and should be added to the enthalpy increment term. The enthalpy of mixing corresponds to the heat effects by interactions between atoms of the added component and the matrix, both in liquid state. Therefore, this term is independent of the surface enthalpy of the added element.
Furthermore, the used Fe nanoparticles were passivated. The thin oxide shell covered the Fe core protecting from the oxidation in the air. Therefore, the enthalpy of the chemical reaction between the oxide shell of the Fe nanoparticles and liquid Sn were considered in the performed calculations as well.
The performed microstructure analysis of the samples after calorimetric measurements showed that the intermetallic compounds FeSn and FeSn2 were formed during the solidification of the investigated Fe-Sn samples after the dropping calorimetry experiments. It proves that the dropped Fe pieces where completely dissolved into Sn. The coexistence of these two IMCs in the investigated samples can be explained due to the relative fast cooling of the sample after the calorimetric measurement.
en
dc.description.sponsorship
FWF - Österr. Wissenschaftsfonds
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dc.language.iso
en
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dc.subject
enthalpy of mixing
en
dc.subject
nanoparticles
en
dc.subject
metal alloys
en
dc.subject
microstructure
en
dc.title
Enthalpy effect adding Fe to liquid Sn: difference between bulk and nanosized Iron
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
University of Vienna, Austria
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dc.contributor.affiliation
University of Miskolc, Hungary
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dc.contributor.affiliation
University of Vienna, Austria
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dc.relation.grantno
P 34894-N
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dc.type.category
Conference Presentation
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tuw.project.title
Hybrid-Lötstellen - neue vielversprechende Lötstrategie
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tuw.researchTopic.id
M3
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tuw.researchTopic.id
M2
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tuw.researchTopic.id
M8
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tuw.researchTopic.name
Metallic Materials
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tuw.researchTopic.name
Materials Characterization
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tuw.researchTopic.name
Structure-Property Relationsship
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tuw.researchTopic.value
30
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tuw.researchTopic.value
50
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tuw.researchTopic.value
20
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tuw.publication.orgunit
E164-03-2 - Forschungsgruppe Mechanische Eigenschaften und Zuverlässigkeit
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tuw.author.orcid
0000-0002-2884-9984
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tuw.author.orcid
0000-0002-9692-2119
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tuw.author.orcid
0000-0003-4419-142X
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tuw.event.name
13th International Conference "Nanotechnologies and Nanomaterials" NANO-2025
en
tuw.event.startdate
20-08-2025
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tuw.event.enddate
23-08-2025
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tuw.event.online
Hybrid
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tuw.event.type
Event for scientific audience
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tuw.event.country
UA
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tuw.event.presenter
Yakymovych, Andriy
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tuw.presentation.online
Online
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tuw.event.track
Multi Track
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wb.sciencebranch
Chemie
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wb.sciencebranch.oefos
1040
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wb.sciencebranch.value
100
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item.openairecristype
http://purl.org/coar/resource_type/c_18cp
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item.fulltext
no Fulltext
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item.languageiso639-1
en
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item.grantfulltext
none
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item.openairetype
conference paper not in proceedings
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item.cerifentitytype
Publications
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crisitem.author.dept
E164-03-2 - Forschungsgruppe Mechanische Eigenschaften und Zuverlässigkeit
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crisitem.author.dept
University of Vienna, Austria
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crisitem.author.dept
University of Miskolc, Hungary
-
crisitem.author.dept
University of Vienna, Austria
-
crisitem.author.dept
E164-03-2 - Forschungsgruppe Mechanische Eigenschaften und Zuverlässigkeit
-
crisitem.author.dept
E164-03-2 - Forschungsgruppe Mechanische Eigenschaften und Zuverlässigkeit
