The Al-Al3Ni Eutectic Reaction: Crystallography and Mechanism of Formation

The characteristics of the Al-Al 3 Ni eutectic structure are examined with emphasis on its morphology and crystallography. Based on these examinations, the mechanism of formation of this technologically important eutectic is postulated. It is found that a thin shell of α -Al forms coherently around...

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Bibliographic Details
Published inMetallurgical and materials transactions. A, Physical metallurgy and materials science Vol. 46; no. 9; pp. 3808 - 3812
Main Authors Fan, Yangyang, Makhlouf, Makhlouf M.
Format Journal Article
LanguageEnglish
Published New York Springer US 01.09.2015
Subjects
Characterization and Evaluation of Materials
Chemistry and Materials Science
Communication
Materials Science
Metallic Materials
Nanotechnology
Structural Materials
Surfaces and Interfaces
Thin Films
Al3Ni Phase
High Resolution Transmission Electron Microscopy
Select Area Diffraction Pattern
Al3Ni
Eutectic Solidification
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Summary:The characteristics of the Al-Al 3 Ni eutectic structure are examined with emphasis on its morphology and crystallography. Based on these examinations, the mechanism of formation of this technologically important eutectic is postulated. It is found that a thin shell of α -Al forms coherently around each Al 3 Ni fiber. The excellent thermal stability of the Al-Al 3 Ni eutectic may be attributed to the presence of this coherent layer.
ISSN:1073-5623
1543-1940
DOI:10.1007/s11661-015-3051-9