CobaltMaghrebV1, Maroc, Analysis, bibRecord, 000244

Magnetic measurements of point defect elimination in quenched CoGa and FeAl intermetallic compounds

Identifieur interne : 000244 ( Maroc/Analysis ); précédent : 000243; suivant : 000245

Magnetic measurements of point defect elimination in quenched CoGa and FeAl intermetallic compounds

Auteurs : O. Sassi [Maroc] ; S. Benlemlih [Maroc] ; J. Aride [Maroc] ; A. Berrada [Maroc] ; G. Moya [France]

Source :

Journal of Alloys and Compounds [ 0925-8388 ] ; 1992.

RBID : ISTEX:DF142FBB370151F4464DFC672BD98D68D6E746B8

Abstract

The elimination of antistructure atoms via vacancies in CoGa and FeAl ordered with the B2 (CsCl-type) structure has been investigated using magnetic measurements. During an annealing out of quenched-in antistructure atoms, the magnetic susceptibility must decrease. This behaviour is observed in CoGa alloys, whereas in the case of FeAl alloys the annealing out of quenched-in defects starts by a slight increase followed by a strong decrease in susceptibility. These different behaviours are attributed to the different concentrations existing for the two kinds of vacancies which are present in both compounds. These concentrations are calculated in the Bragg Williams approximation.

Url:

https://api.istex.fr/document/DF142FBB370151F4464DFC672BD98D68D6E746B8/fulltext/pdf

DOI: 10.1016/0925-8388(92)90686-4

Affiliations:

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ISTEX:DF142FBB370151F4464DFC672BD98D68D6E746B8

Le document en format XML

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<front><div type="abstract" xml:lang="en">The elimination of antistructure atoms via vacancies in CoGa and FeAl ordered with the B2 (CsCl-type) structure has been investigated using magnetic measurements. During an annealing out of quenched-in antistructure atoms, the magnetic susceptibility must decrease. This behaviour is observed in CoGa alloys, whereas in the case of FeAl alloys the annealing out of quenched-in defects starts by a slight increase followed by a strong decrease in susceptibility. These different behaviours are attributed to the different concentrations existing for the two kinds of vacancies which are present in both compounds. These concentrations are calculated in the Bragg Williams approximation.</div>
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Magnetic measurements of point defect elimination in quenched CoGa and FeAl intermetallic compounds

Magnetic measurements of point defect elimination in quenched CoGa and FeAl intermetallic compounds

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Abstract

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