Journals Information
Universal Journal of Materials Science Vol. 3(2), pp. 23 - 26
DOI: 10.13189/ujms.2015.030201
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Investigation of Site-Selectivity and Crystal Structure of Boron-Incorporated B2-Type AlNi Matrix
M. Elhadi 1,2,*, M. ElMassalami 1, B. Ouladdiaf 3
1 Instituto de Fisica, Universidade Federal do Rio de Janeiro, Brazil
2 Department of Physics, Faculty of Science and Technology, Al Neelain University, Sudan
3 Institut Laue-Langevin, Diffraction Group (DIF), B.P.156, 38042 Grenoble Cedex 9, France
ABSTRACT
We investigated in the B site-selectivity and induced modifications in the crystal structure, when B is introduced into the B2-type AlNi matrix (Pm-3m; Al at 1a, Ni at 1b). A rapid-quench from higher temperatures of all nominal AlNiBx and Al2Ni3Bx/3 compositions (0≤ x ≤ 3) leads to the formation of a cubic solid solution. On the other hand, diffraction studies indicate that all (unquenched) AlNiBx (1≤ x ≤ 3) compositions are chemically unstable. By contrast, for 0≤ x ≤ 1 there is a strong preference of B to enter substitutionally into the 1b site: then composition balance is achieved by transferring a Ni atom into a 1a antisite.
KEYWORDS
Intermetallic, Composition, Ternary Phase Diagram, Rapid Quench
Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] M. Elhadi , M. ElMassalami , B. Ouladdiaf , "Investigation of Site-Selectivity and Crystal Structure of Boron-Incorporated B2-Type AlNi Matrix," Universal Journal of Materials Science, Vol. 3, No. 2, pp. 23 - 26, 2015. DOI: 10.13189/ujms.2015.030201.
(b). APA Format:
M. Elhadi , M. ElMassalami , B. Ouladdiaf (2015). Investigation of Site-Selectivity and Crystal Structure of Boron-Incorporated B2-Type AlNi Matrix. Universal Journal of Materials Science, 3(2), 23 - 26. DOI: 10.13189/ujms.2015.030201.