Huber, NorbertNorbertHuberBeirau, TobiasTobiasBeirau2021-02-262021-02-262021-02-13Scripta Materialia 197: 113789 (2021-05)http://hdl.handle.net/11420/8961Mechanical 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.en1359-64622021https://creativecommons.org/licenses/by-nc-nd/4.0/AmorphizationInterfacesMicromechanical modellingNanoindentationPolyphase microstructureMathematikPhysikChemieGeowissenschaftenIngenieurwissenschaftenJournal Article10.15480/882.346310.1016/j.scriptamat.2021.11378910.15480/882.3463Other