Protective alumina coatings prepared by aerosol deposition on magnetocaloric gadolinium elements

Šadl, Matej (author), Tomc, Urban (author), Prah, Uroš (author), Uršič Nemevšek, Hana (author)

In this work the preparation of a protective insulating alumina coating on magnetocaloric gadolinium elements was investigated. In order to prepare a dense ceramic coating at room temperature the aerosol deposition technique was used. The study reveals that the powder morphology and particle size are important parameters that influence the deposition efficiency, powder packing and consequently also the density and functional properties of the alumina coating. The optimal powder pre-deposition treatment includes heating the powder to 1150 °C, followed by milling. The deposition of this powder resulted in the preparation of dense alumina coatings with a low specific electrical conductivity of 6.4.10-14 [Omega]-1m-1.

• Language: English
• Keywords: protective alumina coating, aerosol deposition, magnetocaloric gadolinium
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2019
• Number of pages: Str. 177-182
• Numbering: Vol. 49, no. 3
• PID: 20.500.12556/RUL-125701
• UDC: 621.5(045)
• ISSN on article: 0352-9045
• URN: URN:NBN:SI:doc-OFHVNHSU
• COBISS.SI-ID: 16935195
• Publication date in RUL: 02.04.2021

Record is a part of a journal

• Title: Informacije MIDEM : časopis za mikroelektroniko, elektronske sestavne dele in materiale
• Shortened title: Inf. MIDEM
• Publisher: Strokovno društvo za mikroelektroniko, elektronske sestavne dele in materiale
• ISSN: 0352-9045
• COBISS.SI-ID: 1220612

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: 02.04.2021

Secondary language

• Language: Slovenian
• Title: Korundna zaščita magnetokaloričnih hladilnih elementov pripravljena z metodo nanašanja delcev v curku aerosola
• Keywords: korundne zaščitne prevleke, nanašanje delcev v curku aerosola, magnetokalorični gadolinij