Mechanical and Thermal Properties of W-Ta-B Coatings Deposited by High-Power Impulse Magnetron Sputtering (HiPIMS)

Autor:	Rafał Psiuk, Tomasz Mościcki, Justyna Chrzanowska-Giżyńska, Łukasz Kurpaska, Joanna Radziejewska, Piotr Denis, Dariusz Garbiec, Marcin Chmielewski
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	General Materials Science tungsten diboride high power impulse magnetron sputtering (HiPIMS) hardness thermal stability oxidation resistance
Zdroj:	Materials; Volume 16; Issue 2; Pages: 664
ISSN:	1996-1944
DOI:	10.3390/ma16020664
Popis:	We present the deposition and characterization of tungsten-tantalum diboride (W,Ta)B2 coatings prepared by the high-power impulse magnetron sputtering technique. We evaluated the influence of pulse duration and substrate bias on the properties of (W,Ta)B2 films. A high hardness of up to 35 GPa measured by nanoindentation was simultaneously obtained with good elastic properties. Changing the pulse duration greatly affected the B/(W+Ta) atomic ratio, which influenced the properties of the coatings. The deposited films are thermally stable at up to 1000 °C in vacuum and are able to withstand oxidation at 500 °C.
Databáze:	OpenAIRE
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