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Publisher DOI: 10.1016/j.scriptamat.2021.113789
Title: Modelling the effect of intrinsic radiation damage on mechanical properties : the crystalline-to-amorphous transition in zircon
Language: English
Authors: Huber, Norbert 
Beirau, Tobias 
Keywords: Amorphization;Interfaces;Micromechanical modelling;Nanoindentation;Polyphase microstructure
Issue Date: 13-Feb-2021
Source: Scripta Materialia 197: 113789 (2021-05)
Journal: Scripta Materialia 
Abstract (english): 
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.
DOI: 10.15480/882.3463
ISSN: 1359-6462
Institute: Werkstoffphysik und -technologie M-22 
Document Type: Article
Project: Mechanische Eigenschaften strahlengeschädigter Geomaterialien 
License: CC BY-NC-ND 4.0 (Attribution-NonCommercial-NoDerivatives) CC BY-NC-ND 4.0 (Attribution-NonCommercial-NoDerivatives)
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