TEM and XPS Study of Ball-Milled Fe1 – xAlx Alloys
| Authors | Ranjeet Brajpuriya1 , Rajeev Gupta1, Ankush Vij1, Ashish Kumar1, Snehal Jani2 |
| Affiliations |
1Applied Science Cluster, University of Petroleum & Energy Studies, 248001 Dehradun, Uttrakhand, India 2Department of Physics, Amity University Madhya Pradesh, Gwalior, India |
| Е-mail | ranjeetbjp1@gmail.com |
| Issue | Volume 14, Year 2022, Number 4 |
| Dates | Received 10 May 2022; revised manuscript received 09 August 2022; published online 25 August 2022 |
| Citation | Ranjeet Brajpuriya, Rajeev Gupta, et al., J. Nano- Electron. Phys. 14 No 4, 04022 (2022) |
| DOI | https://doi.org/10.21272/jnep.14(4).04022 |
| PACS Number(s) | 81.20.Ev, 81.07.Bc, 75.75. – c |
| Keywords | XRD (92) , Thinfilm, Nanocrystalline (9) , Interface (7) , Amorphous (20) . |
| Annotation |
The ball milling technique has been extensively used to prepare different metastable states with nanocrystalline microstructures from intermetallic compounds. In the present manuscript, the authors have systematically investigated the structural and electronic properties of a series of mechanically alloyed Fe1 – xAlx (0.3 ≤ x ≤ 0.6) samples using transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The ball milling process causes the formation of solid-state reactions that are aided by severe plastic deformation, resulting in reduced crystallite size and interesting microstructural and electronic changes in the resulting system. The TEM results show that the crystallite size decreases to the nanometer range (between 6-8 nm) as a function of x and the metals dissolve at the nanograin boundaries. As a result of nanometric dimensions, the reactivity increases as a result of the increased surface-to-volume ratio, which leads to the FeAl alloy phase formation. The XPS survey scan shows that the samples do not have any major contamination, and the core level spectra show a slight shift of Fe2p and Al2p peaks toward higher binding energy (BE), which proves that different Fe- and Al-rich phases of FeAl alloy have formed after 5 h of milling. |
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