Schultheiß, Jan ; Porz, Lukas ; Kodumudi Venkataraman, Lalitha ; Höfling, Marion ; Yildirim, Can ; Cook, Phil ; Detlefs, Carsten ; Gorfman, Semën ; Rödel, Jürgen ; Simons, Hugh (2023):
Quantitative mapping of nanotwin variants in the bulk. (Publisher's Version)
In: Scripta Materialia, 199, Elsevier, ISSN 1359-6462, e-ISSN 1872-8456,
DOI: 10.26083/tuprints-00023202,
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Item Type: | Article |
---|---|
Origin: | Secondary publication service |
Status: | Publisher's Version |
Title: | Quantitative mapping of nanotwin variants in the bulk |
Language: | English |
Abstract: | Crystallographic twins are critical to the properties of numerous materials from magnesium alloys to piezoelectrics. Since the onset of the twin formation is highly sensitive to the triaxial mechanical boundary conditions, non-destructive bulk microscopy techniques are required. Elastic strains can be mapped via X-ray diffraction with a 100-200 nm resolution. However, the interplay of strains with nanotwins cannot be characterized. Here, a method based on dark-field X-ray microscopy to quantify the density of nanotwin variants with twin lamellae of sizes as small as several tens of nanometers in embedded subvolumes (70x200x600 nm³) in millimeter-sized samples is introduced. The methodology is corroborated by correlating the local density of twin variants to the long-ranging strain fields for a high-performance piezoelectric material. The method facilitates direct, in situ mapping and quantification of nanoscale structural changes together with their elastic driving fields, which is the key towards controlling and engineering material's performance at nanometric scales. |
Journal or Publication Title: | Scripta Materialia |
Volume of the journal: | 199 |
Place of Publication: | Darmstadt |
Publisher: | Elsevier |
Collation: | 5 Seiten |
Uncontrolled Keywords: | Twinning, X-ray diffraction, Domains, Ferroelectricity, Elasto-morphological coupling |
Classification DDC: | 500 Naturwissenschaften und Mathematik > 530 Physik 500 Naturwissenschaften und Mathematik > 540 Chemie |
Divisions: | 11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials |
Date Deposited: | 10 Feb 2023 09:24 |
Last Modified: | 25 May 2023 06:10 |
DOI: | 10.26083/tuprints-00023202 |
Corresponding Links: | |
URN: | urn:nbn:de:tuda-tuprints-232029 |
Identification Number: | 113878 |
URI: | https://tuprints.ulb.tu-darmstadt.de/id/eprint/23202 |
PPN: | 507931165 |
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