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Revealing the Deposition Mechanism of the Powder Aerosol Deposition Method Using Ceramic Oxide Core-Shell Particles

Title data

Linz, Mario ; Bühner, Florian ; Paulus, Daniel ; Hennerici, Lukas ; Guo, Yiran ; Mereacre, Valeriu ; Mansfeld, Ulrich ; Seipenbusch, Martin ; Kita, Jaroslaw ; Moos, Ralf:
Revealing the Deposition Mechanism of the Powder Aerosol Deposition Method Using Ceramic Oxide Core-Shell Particles.
In: Advanced Materials. Vol. 36 (2024) Issue 7 . - 2308294.
ISSN 1521-4095
DOI: https://doi.org/10.1002/adma.202308294

Official URL: Volltext

Project information

Project title:
Project's official title
Project's id
Untersuchungen zum Abscheidemechanismus bei der aerosolbasierten Kaltabscheidung von Keramiken durch Aufklären der Vorgänge beim Aufprallen von Mikrometer-Partikeln auf Oberflächen
MO 1060/40-1
FB2-AdBatt - Aerosoldeposition zur Herstellung von Batterien mit gradierter Kathode
03XP0441A

Project financing: Bundesministerium für Bildung und Forschung
Deutsche Forschungsgemeinschaft
Bundesministerium für Bildung und Forschung

Abstract in another language

The powder aerosol deposition (PAD) method is a process to manufacture ceramic films completely at room temperature. Since the first reports by Akedo in the late 1990s, much research has been conducted to reveal the exact mechanism of the deposition process. However, it is still not fully understood. This work tackles this challenge using core–shell particles. Two coated oxides, Al2O3 core with a SiO2 shell and LiNi0.6Mn0.2Co0.2O2 core with a LiNbO3 shell, are investigated. Initially, the element ratios Al:Si and Ni:Nb of the powder are determined by energy-dispersive X-ray spectroscopy (EDX). In a second step, the change in the element ratios of Al:Si and Ni:Nb after deposition is investigated. The element ratios from powder to film strongly shift toward the shell elements, indicating that the particles fracture and only the outer parts of the particles are deposited. In the last step, this work investigates cross-sections of the deposited films with scanning transmission electron microscopy (STEM combined with EDX and an energy-selective back-scattered electron (EsB) detector to unveil the element distribution within the film itself. Therefore, the following overall picture emerges: particles impact on the substrate or on previously deposited particle, fracture, and only a small part of the impacting particles that originate from the outer part of the impacting particle gets deposited.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Functional Materials > Chair Functional Materials - Univ.-Prof. Dr.-Ing. Ralf Moos
Profile Fields > Advanced Fields > Advanced Materials
Research Institutions > Central research institutes > Bayreuth Center for Material Science and Engineering - BayMAT
Research Institutions > Central research institutes > Bayerisches Zentrum für Batterietechnik - BayBatt
Research Institutions > Affiliated Institutes > Bavarian Polymer Institute (BPI)
Faculties
Faculties > Faculty of Engineering Science > Chair Functional Materials
Profile Fields
Profile Fields > Advanced Fields
Research Institutions
Research Institutions > Central research institutes
Research Institutions > Affiliated Institutes
Result of work at the UBT: Yes
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 10 Apr 2024 06:19
Last Modified: 30 Apr 2024 05:43
URI: https://eref.uni-bayreuth.de/id/eprint/89270