Investigating the feasibility of preparing metal-ceramic multi-layered composites using only the aerosol-deposition technique

Šadl, Matej (avtor), Tomc, Urban (avtor), Uršič Nemevšek, Hana (avtor)

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.

• Jezik: Angleški jezik
• Ključne besede: aerosol deposition, multi-layered composites, interdigitated aluminium electrodes, alumina insulating layers
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2021
• Št. strani: 10 str.
• Številčenje: Vol. 14, iss. 16, art. 4548
• PID: 20.500.12556/RUL-135970
• UDK: 621.79:62-419:544.772
• ISSN pri članku: 1996-1944
• DOI: 10.3390/ma14164548
• COBISS.SI-ID: 72970755
• Datum objave v RUL: 05.04.2022

Gradivo je del revije

• Naslov: Materials
• Skrajšan naslov: Materials
• Založnik: MDPI
• ISSN: 1996-1944
• COBISS.SI-ID: 33588485

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
• Začetek licenciranja: 13.08.2021

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: aerosolno nanašanje, večslojni kompoziti, povezane aluminijeve elektrode, aluminijevi izolirni sloji