In situ mechanical quenching of nanoscale silica spheres in the transmission electron microscope

Journal article
(Original article)


Publication Details

Author(s): Mackovic M, Niekiel F, Wondraczek L, Bitzek E, Spiecker E
Journal: Scripta Materialia
Publisher: Elsevier
Publication year: 2016
Volume: 121
Pages range: 70-74
ISSN: 1359-6462
Language: English


Abstract


A novel approach for in situ mechanical quenching experiments of nanoscale silica spheres inside the transmission electron microscope is presented. Electron irradiation is used to mimic temperature by mediating plastic flow. Quenching under load is achieved by switching-off the electron beam. This is employed in different loading scenarios. Complementary finite element method simulations underline a change of Young's modulus, which strongly depends on the interplay of electron irradiation and mechanical load. We attribute the reduction in Young's modulus to compression-induced structural anisotropy which is frozen-in by rapid quenching and propose a model on how structural anisotropy develops in nanoscale silica.



FAU Authors / FAU Editors

Bitzek, Erik Prof. Dr.-Ing.
Professur für Werkstoffwissenschaften (Simulation und Werkstoffeigenschaften)
Mackovic, Mirza Dr.-Ing.
Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung)
Niekiel, Florian
Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung)
Spiecker, Erdmann Prof. Dr.
Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung)
Wondraczek, Lothar Prof. Dr.-Ing.
Professur für Werkstoffwissenschaften (Glas und Keramik)


Additional Organisation
Graduiertenkolleg 1896/2 In situ Mikroskopie mit Elektronen, Röntgenstrahlen und Rastersonden
Exzellenz-Cluster Engineering of Advanced Materials


How to cite

APA:
Mackovic, M., Niekiel, F., Wondraczek, L., Bitzek, E., & Spiecker, E. (2016). In situ mechanical quenching of nanoscale silica spheres in the transmission electron microscope. Scripta Materialia, 121, 70-74. https://dx.doi.org/10.1016/j.scriptamat.2016.04.019

MLA:
Mackovic, Mirza, et al. "In situ mechanical quenching of nanoscale silica spheres in the transmission electron microscope." Scripta Materialia 121 (2016): 70-74.

BibTeX: 

Last updated on 2018-19-04 at 03:32