Sonia Guehairia
Stipendiat
Om mig
Interests:
- study of nano-scale materials using atom probe tomography (APT): decomposition, segregation, precipitation, doping etc…
- correlation of the elaboration process (quenching, heat treatment, ageing, composition, manufacturing) and/or material properties (mechanical, optical, electrical…) with nano-structuration
Current research:
- study of the influence of heat treatment on the nanostructure of 15-5PH steels
- study of the influence of the magnetic field on copper precipitation in 15-5PH steels
- development of a method for characterising and quantifying hydrogen with APT
Background:
PhD in Physics in the Groupe de Physique des Matériaux (GPM) delivered by the University of Rouen Normandie in France.
Publications:
Atomic-scale and optical investigation of nanostructured Er disilicates in silica, J. of Alloys and Compounds, 2022.
https://doi.org/10.1016/j.jallcom.2022.166947
Heavily Doped Si Nanocrystals Formed in P-(SiO/SiO2) Multilayers: A Promising Route for Si-Based Infrared Plasmonics, ACS Appl. Nano Mater., 2023
https://doi.org/10.1021/acsanm.2c05088
Etude structurale et optique de l'hyperdopage dans des oxydes de silicium nanostructurés, Thèse, Université de Rouen Normandie, 2023
https://theses.hal.science/tel-04317034
Shared knowledge:
Poster: S. Guehairia, T. Zhou, A. Dahlström, P. Hedström, The contribution of APT to computational materials design framework for precipitation‐hardened high‐performance martensitic steels, APT&M 2023, Leuven, BE.
Lecture: Introduction to atom probe tomography – opportunities in materials science, KTH Atom probe tomography, Sept. 2023, Stockholm, SV.
Poster: Cu precipitation mechanisms within APT in 15-5 PH stainless steels, NNUM 2024, Oslo, NO.
Training: FIB and APT training to new Hultgren Lab facility users
Other:
FIB, TEM, EBSD, EDS, TKD, EP
Involved in different research projects in Hultgren Lab
FIB and APT expertise for external researcher or companies