NOMATEN Seminar finally in a hybrid mode (NOV 23 at 1PM): Studying high entropy alloys with positron annihilation spectroscopy: opportunities and challenges

Date
Date 2
Place
NCBJ HQ, Sołtana 7 St., Otwock, PNT Hall 208 "EWA" (online streaming: https://gotomeet.me/ncbjmeetings/nomaten-seminar)
NOMATEN Seminar (Hybrid Mode)
 
Studying high entropy alloys with positron annihilation spectroscopy: opportunities and challenges
Filip Tuomisto M.Sc D.Sc - Department of Physics and Helsinki Institute of Physics, Professor at University of Helsinki (Finland)
 

ON SITE: Park Naukowo-Technologiczny, sala 208 "EWA"/ Science and Technology Park, hall 208 "EWA"
ONLINE: https://gotomeet.me/ncbjmeetings/nomaten-seminar

Tuesday NOVEMBER 23 2021 at 1PM CET (13:00)
 
ACCESS TO NCBJ HQ FOR NON-EMPLOYEES:
Please send a request containing your name, last name and ID number via email (barbara.paprocka@ncbj.gov.pl).
Subject of the message: "NOMATEN Seminar NOV 23 - request for access"

 

ABSTRACT:
Positron annihilation spectroscopy is a powerful set of methods for the detection, identification and quantification of vacancy-type defects in semiconductors and metals. I will present recent advances in combining state-of-the-art positron annihilation experiments and ab initio computational approaches to study defects in multi-component metal and semiconductor alloys. I will review our latest published work on chemical  segregation in the early stages of irradiation and the on the unusual behavior of vacancy migration energetics in fcc HEAs. I will also discuss our ongoing work on bcc HEAs.
 
[1] F. Tuomisto and I. Makkonen, Rev. Mod. Phys. 85, 1583 (2013).
[2] F. Selim, Mater. Charact. 174, 110952 (2021).
[3] F. Tuomisto et al., Acta Mater. 196, 44 (2020).
[4] E. Lu et al., Acta Mater. 215, 117093 (2021).
 
 
BIO:
Filip Tuomisto studied engineering physics and mathematics at the Helsinki University of Technology (M.Sc. and D.Sc.). He is now a professor of experimental materials physics at University of Helsinki where he is head of the Accelerator Laboratory. His research focuses on the physics of point defects in  semiconductors and metals, and on the development and applications of positron annihilation spectroscopy.
 

Seminar Filip Tuomisto

 

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Seminar Filip Tuomisto

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This project has received funding from the European Union Horizon 2020 research and innovation
programme under grant agreement No 857470 and from European Regional Development Fund
via Foundation for Polish Science International Research Agenda PLUS programme grant
No MAB PLUS/2018/8.
Poland
The project is co-financed from the state budget within the framework of the undertaking of the Minister of Science and Higher Education "Support for the activities of Centers of Excellence established under Horizon 2020".

Grant: 5 143 237,70 EUR
Total value: 29 971 365,00 EUR
Date of signing the funding agreement: December 2023

The purpose of the undertaking is to support entities of the higher education and science system that have received funding from the European Union budget in the competition H2020-WIDESPREAD-2018-2020/WIDESPREAD-01-2018-2019: Teaming Phase 2. in the preparation, implementation and updating of activities, maintenance of material resources necessary for carrying out activities, acquisition and modernization of scientific and research apparatus, maintenance and development of personnel potential necessary for the implementation of activities, and dissemination of the results of scientific activities.