Details
| Original language | English |
|---|---|
| Pages (from-to) | 10-16 |
| Number of pages | 7 |
| Journal | Ultramicroscopy: a journal committed to the advancement of new methods, tools and theories in microscopy |
| Volume | 182 |
| Publication status | Published - Nov 2017 |
Abstract
In situ measurements are a pivotal extension of conventional transmission electron microscopy (TEM). By means of the shape memory alloy NiTi thin film Functional Grids were produced for in situ straining as alternative or at least complement of expensive commercial holders. Due to the martensite-austenite transition temperature straining effects can be observed by use of customary heating holders in the range of 50 to 100 °C. The grids can be produced in diversified designs to fit for different strain situations. Micro tensile tests were performed and compared with finite element simulations to estimate the applied forces on the sample and to predict the functionality of different grid designs. As a first example of this Functional Grid technology, we demonstrate the impact of applying a strain to a network of ZnO tetrapods.
Keywords
- Finite element simulations, In situ straining, Shape memory alloys, Transmission electron microscopy, ZnO
ASJC Scopus subject areas
- Materials Science(all)
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Instrumentation
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In: Ultramicroscopy: a journal committed to the advancement of new methods, tools and theories in microscopy, Vol. 182, 11.2017, p. 10-16.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Functional NiTi grids for in situ straining in the TEM
AU - Schürmann, Ulrich
AU - Chluba, Christoph
AU - Wolff, Niklas
AU - Smazna, Daria
AU - Lima De Miranda, Rodrigo
AU - Junker, Philipp
AU - Adelung, Rainer
AU - Quandt, Eckhard
AU - Kienle, Lorenz
N1 - Funding information: This work was funded by the German Research Foundation (DFG) as part of the Collaborative Research Center 1261–Magnetoelectric sensors from composite materials to biomagnetic diagnostics (SFB 1261). The authors want to thank Christin Szillus, Matthias Frank, Niko Carstens and Christiane Zamponi for sample preparation. We thank Dustin R. Jantos for the creation of the finite element mesh.
PY - 2017/11
Y1 - 2017/11
N2 - In situ measurements are a pivotal extension of conventional transmission electron microscopy (TEM). By means of the shape memory alloy NiTi thin film Functional Grids were produced for in situ straining as alternative or at least complement of expensive commercial holders. Due to the martensite-austenite transition temperature straining effects can be observed by use of customary heating holders in the range of 50 to 100 °C. The grids can be produced in diversified designs to fit for different strain situations. Micro tensile tests were performed and compared with finite element simulations to estimate the applied forces on the sample and to predict the functionality of different grid designs. As a first example of this Functional Grid technology, we demonstrate the impact of applying a strain to a network of ZnO tetrapods.
AB - In situ measurements are a pivotal extension of conventional transmission electron microscopy (TEM). By means of the shape memory alloy NiTi thin film Functional Grids were produced for in situ straining as alternative or at least complement of expensive commercial holders. Due to the martensite-austenite transition temperature straining effects can be observed by use of customary heating holders in the range of 50 to 100 °C. The grids can be produced in diversified designs to fit for different strain situations. Micro tensile tests were performed and compared with finite element simulations to estimate the applied forces on the sample and to predict the functionality of different grid designs. As a first example of this Functional Grid technology, we demonstrate the impact of applying a strain to a network of ZnO tetrapods.
KW - Finite element simulations
KW - In situ straining
KW - Shape memory alloys
KW - Transmission electron microscopy
KW - ZnO
UR - http://www.scopus.com/inward/record.url?scp=85020508187&partnerID=8YFLogxK
U2 - 10.1016/j.ultramic.2017.06.003
DO - 10.1016/j.ultramic.2017.06.003
M3 - Article
C2 - 28628834
VL - 182
SP - 10
EP - 16
JO - Ultramicroscopy: a journal committed to the advancement of new methods, tools and theories in microscopy
JF - Ultramicroscopy: a journal committed to the advancement of new methods, tools and theories in microscopy
ER -