Journal Article

PUBDB-2023-07298

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png In situ neutron diffraction for analysing complex coarse-grained functional materials

Hinterstein, M. (Corresponding author)Extern* ; Lemos da Silva, L.Extern* ; Knapp, M.Extern* ; Schoekel, A.Extern*DESY* ; Etter, M.DESY* ; Studer, A.

2023
Wiley-Blackwell [Erscheinungsort nicht ermittelbar]

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Please use a persistent id in citations: doi:10.1107/S1600576723005940  doi:10.3204/PUBDB-2023-07298

Abstract: Complex functional materials play a crucial role in a broad range of energy-related applications and in general for materials science. Revealing the structural mechanisms is challenging due to highly correlated coexisting phases and microstructures, especially for in situ or operando investigations. Since the grain sizes influence the properties, these microstructural features further complicate investigations at synchrotrons due to the limitations of illuminated sample volumes. In this study, it is demonstrated that such complex functional materials with highly correlated coexisting phases can be investigated under in situ conditions with neutron diffraction. For large grain sizes, these experiments are valuable methods to reveal the structural mechanisms. For an example of in situ experiments on barium titanate with an applied electric field, details of the electric-field-induced phase transformation depending on grain size and frequency are revealed. The results uncover the strain mechanisms in barium titanate and elucidate the complex interplay of stresses in relation to grain sizes as well as domain-wall densities and mobilities.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)
2. PETRA-D (FS-PETRA-D)

Research Program(s):

1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
3. FS-Proposal: I-20170157 (I-20170157) (I-20170157)
4. FS-Proposal: I-20180546 (I-20180546) (I-20180546)
5. FS-Proposal: I-20191018 (I-20191018) (I-20191018)

Experiment(s):

1. PETRA Beamline P02.1 (PETRA III)

Appears in the scientific report 2023

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF >= 5 ; JCR ; Nationallizenz ; PubMed Central ; SCOPUS ; Web of Science Core Collection

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