ELFT HÍRADÓ

[Szeminárium koordinátor <sem-admin AT szfki.hu>]

SZFI SeminarPéter LászlóWigner RCP SZFIMy adventures in physico-chemical 
materials scienceTuesday, 1 March 2022, 10:00, Bldg 1, auditorium, 
https://wigner-hu.zoom.us/j/99942976765?pwd=VnZOaFNLckZHdGJxc2dGRGhxYnl0UT09  
 Meeting ID: 999 4297 6765  Passcode: 075210In this talk, I try to offer an 
insight into various fields of experimental materials research that I was 
involved in the last couple of years. Instead of diving too deep into either 
of the topics touched, I strive for a comprehensive overview. In the first 
part of the talk, activities related to electrodeposition will be detailed. A 
significant part of the works in the last decade was related to the study of 
the microstructure of electrodeposited Ni-based materials (Ni and Ni-Mo 
alloys). Although the deposition of such metals itself is not a novelty, this 
work was pioneering in the sense that trends related to the defect structure 
of electrodeposited metals were first established by using deposits prepared 
in our laboratory. I will focus on the role of solution components in the 
formation of defects such as twins and dislocations in relation to the grain 
size and the thermal stability of the deposits. Another 
electroplating-related study was the optimization of the deposition of 57Co 
isotopes. This application-oriented study served the goals of Mössbauer 
spectroscopy. In the second part of the talk, the operation of the new 
scanning electron microscope of the institute will be detailed. After 
presenting the way how it gained importance since the installation, a few 
interesting slides with peculiar images will be shown. The topic selected for 
a detailed insight will be, however, not based on the images; instead, it 
will be related to the quantitative description of the composition profile of 
welded metals obtained with SEM-EDS. This will exemplify that the routine in 
the instrument operation is only the basis that has to be exceeded to make 
real science. Minden érdeklődőt szívesen látunk! - Everyone is welcome 
to attend.Róbert Juhászsem-admin AT szfki.hu