期刊
PHILOSOPHICAL MAGAZINE LETTERS
卷 88, 期 7, 页码 501-507出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09500830802251419
关键词
Mg2Al3; Samson phase; domain structure; magnesium alloys; X-ray diffraction
An analysis of cross-sections perpendicular to the main diagonal of a cubic elementary cell of a Samson structure-beta-Mg2Al3 has been conducted. It has been proved that all skeleton atoms, i.e. which occupy their positions with probability of 100%, form a framework of hexagonal planes. These planes are a part of three domains shifted with respect to each other by one-third of the length of cube's diagonal. Space between domains is filled up by clusters with partially occupied atomic positions. For hexagonal domains, the elementary cell and positions of decorating atoms have been determined.
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