Site preference of Hf dopant in Ni3Al alloys: A perturbed angular correlation study
Нема приказа
Аутори
Ivanovski, Valentin N.Cekić, Božidar Đ.
Umićević, Ana
Barudžija, Tanja
Schumacher, G.
Mađarević, Ivan
Koteski, Vasil J.
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Perturbed angular correlation measurements of the hyperfine interactions of the Ta-181 probe in the polycrystalline intermetallic Ni3Al doped with 0.5 and 5 at.% Hf were performed in the temperature range 78-1230 K. The observed local hyperfine fields at the Hf-181/Ta-181 probe showed that Hf atoms are substituting on Al sites in the L1(2) structure of Ni3Al. The two minor electric quadrupole interactions that were found for each Ni3Al alloy are discussed taking into account the L1(2) cubic structure and its two tetragonal distortions: D0(22) and L6(0). The presence of two tetragonal transformations of the parent cubic L1(2) lattice in 0.5 at.% Hf and 5 at.% Hf doped Ni3Al was revealed by X-ray diffraction. The ab initio calculations, performed with the projector augmented wave method correctly reproduce the experimental results and enable discussion on the structural and electronic properties of the polycrystalline alloys. The experimental and theoretical investigations showed that ha...fnium additions prefer aluminum sites in Ni3Al. (C) 2014 Elsevier B.V. All rights reserved.
Кључне речи:
Intermetallics / Electronic properties / Perturbed angular correlations / PAC / X-ray diffractionИзвор:
Journal of Alloys and Compounds, 2015, 622, 541-547Финансирање / пројекти:
- Истраживање интерметалика и полупроводника и могућа примена у обновљивим изворима енергије (RS-MESTD-Basic Research (BR or ON)-171001)
DOI: 10.1016/j.jallcom.2014.10.132
ISSN: 0925-8388; 1873-4669
WoS: 000345749500082
Scopus: 2-s2.0-84910648884
Колекције
Институција/група
VinčaTY - JOUR AU - Ivanovski, Valentin N. AU - Cekić, Božidar Đ. AU - Umićević, Ana AU - Barudžija, Tanja AU - Schumacher, G. AU - Mađarević, Ivan AU - Koteski, Vasil J. PY - 2015 UR - https://vinar.vin.bg.ac.rs/handle/123456789/249 AB - Perturbed angular correlation measurements of the hyperfine interactions of the Ta-181 probe in the polycrystalline intermetallic Ni3Al doped with 0.5 and 5 at.% Hf were performed in the temperature range 78-1230 K. The observed local hyperfine fields at the Hf-181/Ta-181 probe showed that Hf atoms are substituting on Al sites in the L1(2) structure of Ni3Al. The two minor electric quadrupole interactions that were found for each Ni3Al alloy are discussed taking into account the L1(2) cubic structure and its two tetragonal distortions: D0(22) and L6(0). The presence of two tetragonal transformations of the parent cubic L1(2) lattice in 0.5 at.% Hf and 5 at.% Hf doped Ni3Al was revealed by X-ray diffraction. The ab initio calculations, performed with the projector augmented wave method correctly reproduce the experimental results and enable discussion on the structural and electronic properties of the polycrystalline alloys. The experimental and theoretical investigations showed that hafnium additions prefer aluminum sites in Ni3Al. (C) 2014 Elsevier B.V. All rights reserved. T2 - Journal of Alloys and Compounds T1 - Site preference of Hf dopant in Ni3Al alloys: A perturbed angular correlation study VL - 622 SP - 541 EP - 547 DO - 10.1016/j.jallcom.2014.10.132 ER -
@article{ author = "Ivanovski, Valentin N. and Cekić, Božidar Đ. and Umićević, Ana and Barudžija, Tanja and Schumacher, G. and Mađarević, Ivan and Koteski, Vasil J.", year = "2015", abstract = "Perturbed angular correlation measurements of the hyperfine interactions of the Ta-181 probe in the polycrystalline intermetallic Ni3Al doped with 0.5 and 5 at.% Hf were performed in the temperature range 78-1230 K. The observed local hyperfine fields at the Hf-181/Ta-181 probe showed that Hf atoms are substituting on Al sites in the L1(2) structure of Ni3Al. The two minor electric quadrupole interactions that were found for each Ni3Al alloy are discussed taking into account the L1(2) cubic structure and its two tetragonal distortions: D0(22) and L6(0). The presence of two tetragonal transformations of the parent cubic L1(2) lattice in 0.5 at.% Hf and 5 at.% Hf doped Ni3Al was revealed by X-ray diffraction. The ab initio calculations, performed with the projector augmented wave method correctly reproduce the experimental results and enable discussion on the structural and electronic properties of the polycrystalline alloys. The experimental and theoretical investigations showed that hafnium additions prefer aluminum sites in Ni3Al. (C) 2014 Elsevier B.V. All rights reserved.", journal = "Journal of Alloys and Compounds", title = "Site preference of Hf dopant in Ni3Al alloys: A perturbed angular correlation study", volume = "622", pages = "541-547", doi = "10.1016/j.jallcom.2014.10.132" }
Ivanovski, V. N., Cekić, B. Đ., Umićević, A., Barudžija, T., Schumacher, G., Mađarević, I.,& Koteski, V. J.. (2015). Site preference of Hf dopant in Ni3Al alloys: A perturbed angular correlation study. in Journal of Alloys and Compounds, 622, 541-547. https://doi.org/10.1016/j.jallcom.2014.10.132
Ivanovski VN, Cekić BĐ, Umićević A, Barudžija T, Schumacher G, Mađarević I, Koteski VJ. Site preference of Hf dopant in Ni3Al alloys: A perturbed angular correlation study. in Journal of Alloys and Compounds. 2015;622:541-547. doi:10.1016/j.jallcom.2014.10.132 .
Ivanovski, Valentin N., Cekić, Božidar Đ., Umićević, Ana, Barudžija, Tanja, Schumacher, G., Mađarević, Ivan, Koteski, Vasil J., "Site preference of Hf dopant in Ni3Al alloys: A perturbed angular correlation study" in Journal of Alloys and Compounds, 622 (2015):541-547, https://doi.org/10.1016/j.jallcom.2014.10.132 . .