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Synthesis and Characterisation of Nanocomposite Mo-Fe-B Thin Films Deposited by Magnetron Sputtering
| Content Provider | MDPI |
|---|---|
| Author | Malinovskis, Paulius Fritze, Stefan Palisaitis, Justinas Lewin, Erik Patscheider, Jörg Persson, Per Jansson, Ulf |
| Copyright Year | 2021 |
| Description | Several ternary phases are known in the Mo-Fe-B system. Previous ab initio calculations have predicted that they should exhibit a tempting mix of mechanical and magnetic properties. In this study, we have deposited Mo-Fe-B films with a Fe-content varying from 0–37 at.% using non-reactive DC (direct current) magnetron sputtering. The phase composition, microstructure, and mechanical properties were investigated using X-ray diffraction, scanning transmission electron microscopy, and nanoindentation measurements. Films deposited at 300 °C and with >7 at.% Fe are nanocomposites consisting of two amorphous phases: a metal-rich phase and a metal-deficient phase. Hardness and elastic modulus were reduced with increasing Fe-content from ~29 to ~19 GPa and ~526 to ~353 GPa, respectively. These values result in H3/E2 ratios of 0.089–0.052 GPa, thereby indicating brittle behaviour of the films. Also, no indication of crystalline ternary phases was observed at temperatures up to 600 °C, suggesting that higher temperatures are required for such films to form. |
| Starting Page | 1739 |
| e-ISSN | 19961944 |
| DOI | 10.3390/ma14071739 |
| Journal | Materials |
| Issue Number | 7 |
| Volume Number | 14 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-04-01 |
| Access Restriction | Open |
| Subject Keyword | Materials Coatings and Films Thin Films Magnetron Sputtering Mo-fe-b Iron Hardness Mechanical Properties Amorphous Two Amorphous Phases Tem Eels |
| Content Type | Text |
| Resource Type | Article |
