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Investigating the feasibility of preparing metal-ceramic multi-layered composites using only the aerosol-deposition technique
ID
Šadl, Matej
(
Author
),
ID
Tomc, Urban
(
Author
),
ID
Uršič Nemevšek, Hana
(
Author
)
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MD5: EC472AC0F93FC77DF8033F8CB3DCF0E8
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https://www.mdpi.com/1996-1944/14/16/4548
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Abstract
The preparation of metal–ceramic layered composites remains a challenge due to the incompatibilities of the materials at the high temperatures of the co-firing process. For densification, the ceramic thick-film materials must be subjected to high-temperature annealing (usually above 900 °C), which can increase the production costs and limit the use of substrate or co-sintering materials with a low oxidation resistance and a low melting point, such as metals. To overcome these problems, the feasibility of preparing dense, defect-free, metal–ceramic multilayers with a room-temperature-based method should be investigated. In this study, we have shown that the preparation of ceramic–metal Al$_2$O$_3$/Al/Al$_2$O$_3$/Gd multilayers using aerosol deposition (AD) is feasible and represents a simple, reliable and cost-effective approach to substrate functionalisation and protection. Scanning electron microscopy of the multilayers showed that all the layers have a dense, defect-free microstructure and good intra-layer connectivity. The top Al$_2$O$_3$ dielectric layer provides excellent electrical resistance (i.e., 7.7 × 10$^{12}$ Ω·m), which is required for reliable electric field applications.
Language:
English
Keywords:
aerosol deposition
,
multi-layered composites
,
interdigitated aluminium electrodes
,
alumina insulating layers
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
FS - Faculty of Mechanical Engineering
Publication status:
Published
Publication version:
Version of Record
Year:
2021
Number of pages:
10 str.
Numbering:
Vol. 14, iss. 16, art. 4548
PID:
20.500.12556/RUL-135970
UDC:
621.79:62-419:544.772
ISSN on article:
1996-1944
DOI:
10.3390/ma14164548
COBISS.SI-ID:
72970755
Publication date in RUL:
05.04.2022
Views:
770
Downloads:
113
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Record is a part of a journal
Title:
Materials
Shortened title:
Materials
Publisher:
Molecular Diversity Preservation International
ISSN:
1996-1944
COBISS.SI-ID:
33588485
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
Description:
This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:
13.08.2021
Secondary language
Language:
Slovenian
Keywords:
aerosolno nanašanje
,
večslojni kompoziti
,
povezane aluminijeve elektrode
,
aluminijevi izolirni sloji
Projects
Funder:
Other - Other funder or multiple funders
Funding programme:
Jožef Stefan Institute, Director’s fund
Acronym:
ULTRACOOL
Funder:
ARRS - Slovenian Research Agency
Project number:
N2-0212
Name:
Večkalorični elementi za okolju prijazne hladilne sisteme
Funder:
ARRS - Slovenian Research Agency
Funding programme:
Young researchers
Project number:
PR-08977
Funder:
ARRS - Slovenian Research Agency
Project number:
Z2-9247
Name:
Digitalna mikrofluidika v magnetokaloričnem hlajenju
Funder:
ARRS - Slovenian Research Agency
Project number:
P2-0105
Name:
Elektronska keramika, nano, 2D in 3D strukture
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