Journal Article

PUBDB-2026-00666

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Structure matters: A synchrotron study reveals how crystallite structure influences the deposition mechanism for the powder aerosol deposition method

Paulus, D. (Corresponding author)Extern* ; Linz, M. ; Hansen, A.-L.Extern* ; van Smaalen, S.Extern* ; Moos, R. ; Ulrich, A. S. ; Schoenauer-Kamin, D.Extern*

2026
Elsevier Science Amsterdam [u.a.]

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Please use a persistent id in citations: doi:10.1016/j.jeurceramsoc.2026.118127  doi:10.3204/PUBDB-2026-00666

Abstract: Powder aerosol deposition (PAD or ADM) is a coating technique to produce ceramic films at room temperature. Although the deposition mechanism has been clarified in some respects, unanswered questions remain. The present work reports films of titanium oxide, which forms a typical PAD microstructure, and films of incommensurate misfit-layered calcium cobalt oxide (Ca$_3$Co$_4$O$_{9-δ}$, CCO-349), which forms a atypical film. For this work, films made of these two materials were examined using X-ray diffraction with synchrotron radiation and a scanning electron microscopy. It turned out that due to its aperiodic crystal structure, CCO-349 can be deformed more easily than conventional technical ceramics like TiO$_2$. The deformation occurs when the layers in the crystal slide in the direction of the misfit. As a result, it is unnecessary to break the crystals, and a larger crystallite size remains in the film. Therefore, PAD films of CCO-349 have a different microstructure.

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Contributing Institute(s):

1. FS DOOR-User (FS DOOR-User)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
2. FS-Proposal: I-20230953 (I-20230953) (I-20230953)
3. FS-Proposal: I-20240866 (I-20240866) (I-20240866)
4. DFG project G:(GEPRIS)544448150 - PAD-Flex-TEG: Direkt aus dem Pulver kaltabgeschiedene nanokristalline µm-dicke Bismuttellurid-Schichten für flexible thermoelektrische Generatoren (544448150) (544448150)
5. FestBatt-Oxide - Materialplattform 'Oxide' im Rahmen des Kompetenzclusters für Festkörperbatterien (13XP0173A) (13XP0173A)

Experiment(s):

1. PETRA Beamline P02.1 (PETRA III)

Appears in the scientific report 2026

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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