2681 KB19 KB198520252019Prah, UrošŠadl, MatejTomc, UrbanUršič Nemevšek, Hanaštevilka:3letnik:49str. 177-182ISSN:0352-9045COBISSID_HOST:16935195URN:URN:NBN:SI:doc-OFHVNHSUenStrokovno društvo za mikroelektroniko, elektronske sestavne dele in materialeInformacije MIDEMaerosol depositionkorundne zaščitne prevlekemagnetocaloric gadoliniummagnetokalorični gadolinijnanašanje delcev v curku aerosolaprotective alumina coatingProtective alumina coatings prepared by aerosol deposition on magnetocaloric gadolinium elements|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-1TEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaStrokovno društvo za mikroelektroniko, elektronske sestavne dele in materiale