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Local structure study of Fe dopants in Ni-deficit Ni3Al alloys
Local structure study of Fe dopants in Ni-deficit Ni3Al alloys
- Source :
- Journal of Alloys and Compounds
- Publication Year :
- 2015
-
Abstract
- The local electronic and magnetic structure, hyperfine interactions, and phase composition of polycrystalline Ni-deficient Ni3-xFexAl (x = 0.18 and 0.36) were investigated by means of Fe-57 Mossbauer spectroscopy. The samples were characterized by X-ray diffraction and magnetization measurements. The ab initio calculations performed with the projector augmented wave method and the calculations of the energies of iron point defects were done to elucidate the electronic structure and site preference of Fe doped Ni3Al. The value of calculated electric field gradient tensor V-zz = 1.6 10(21) Vm(-2) matches well with the results of Mossbauer spectroscopy and indicates that the Fe atoms occupy Ni sites. (C) 2015 Elsevier B.V. All rights reserved.
Details
- Database :
- OAIster
- Journal :
- Journal of Alloys and Compounds
- Notes :
- Journal of Alloys and Compounds
- Publication Type :
- Electronic Resource
- Accession number :
- edsoai.on1085019311
- Document Type :
- Electronic Resource