Modelling the effect of intrinsic radiation damage on mechanical properties : the crystalline-to-amorphous transition in zircon

Publikationstyp
Journal Article
Publikationsdatum
2021-02-13
Sprache
English
Author
Huber, Norbert orcid-logo
Beirau, Tobias 
Institut
Werkstoffphysik und -technologie M-22 
DOI
10.15480/882.3463
TORE-URI
http://hdl.handle.net/11420/8961
Enthalten in
Scripta Materialia 
Volume
197
Article Number
113789
Citation
Scripta Materialia 197: 113789 (2021-05)
Publisher DOI
10.1016/j.scriptamat.2021.113789
Scopus ID
2-s2.0-85100851383
Mechanical modelling using the level-cut Gaussian random field approach has been employed to simulate the effect of radiation induced amorphization on the Young´s modulus, Poisson´s ratio and hardness of zircon (ZrSiO4). A good agreement with previous nanoindentation experiments has been achieved. Two percolation transitions occur at 6% and 4% amorphous volume fraction, leading to deviations from linearity in the evolution of the Young´s modulus. Interface regions between crystalline and amorphous areas stabilise the hardness for a considerable amount of amorphous fraction. The modelling approach is promising for predicting the intrinsic radiation damage related evolution of the mechanical properties of various materials.
Schlagworte
Amorphization
Interfaces
Micromechanical modelling
Nanoindentation
Polyphase microstructure
DDC Class
510: Mathematik
530: Physik
540: Chemie
550: Geowissenschaften
620: Ingenieurwissenschaften
Lizenz
https://creativecommons.org/licenses/by-nc-nd/4.0/
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