Wettability, reactivity and interfaces in the Gd/TiO₂ system

• Autorzy: Turalska P. , Homa M. , Nowak R. , Bruzda G. , Sobczak N. , Kaban I. , Mattern N. , Eckert J.

Identyfikatory

DOI

10.7356/iod.2017.29

• Języki publikacji: EN

Abstrakty

EN

High-temperature interaction of liquid Gd in contact with dense, polycrystalline TiO₂ substrate, was investigated. Wettability and reactivity tests were carried out at two different temperatures (1362°C and 1412°C) in flowing gas (Ar, 850−900 hPa) using the sessile drop method and classical contact heating of the examined couple of materials. The procedure was combined with a drop pushing procedure. During high temperature studies, images of the Gd/TiO₂ couple were continuously recorded by a high-resolution CCD camera. The results of wettability tests of liquid gadolinium on titanium dioxide substrate show that the Gd/TiO₂ system is non-wettable at both test temperatures (in either case the final contact angle was 100°). The results of structure examinations on the cross-sectioned samples show the dissolution of the TiO₂ substrate in liquid Gd and the presence of two sublayers at the drop/substrate interface: Gd₂TiO₅ (from the drop side) and Gd₂Ti₂O₇ (from the substrate side).

Słowa kluczowe

EN

Gd; TiO2; sessile drop; wettability; reactivity; interfaces

• Wydawca: Instytut Odlewnictwa
• Czasopismo: Prace Instytutu Odlewnictwa
• Rocznik: 2017
• Tom: Vol. 57, no. 4
• Strony: 303--308
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Turalska P.

• Foundry Research Institute, ul. Zakopianska 73, 30-418 Krakow, Poland

autor

Homa M.

• Foundry Research Institute, ul. Zakopianska 73, 30-418 Krakow, Poland

autor

Nowak R.

• Foundry Research Institute, ul. Zakopianska 73, 30-418 Krakow, Poland

autor

Bruzda G.

• Foundry Research Institute, ul. Zakopianska 73, 30-418 Krakow, Poland

autor

Sobczak N.

• Foundry Research Institute, ul. Zakopianska 73, 30-418 Krakow, Poland
• Institute of Precision Mechanics, ul. Duchnicka 3, 01-796 Warsaw, Poland

autor

Kaban I.

• IFW Dresden, Institute for Complex Materials, Helmholtzstraße 20, 01069 Dresden, Germany

autor

Mattern N.

• IFW Dresden, Institute for Complex Materials, Helmholtzstraße 20, 01069 Dresden, Germany

autor

Eckert J.

• Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, 8700 Leoben, Austria
• Department Materials Physics, Montanuniversität Leoben, Jahnstraße 12, 8700 Leoben, Austria

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).