A NEW HEXAGONAL KAPPA-PHASE OF AL-CR-NI

Authors
SATO A YAMAMOTO A LI XZ HIRAGA K HAIBACH T STEURER W
Citation
A. Sato et al., A NEW HEXAGONAL KAPPA-PHASE OF AL-CR-NI, Acta crystallographica. Section C, Crystal structure communications, 53, 1997, pp. 1531-1533
Citations number
7
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
53
Year of publication
1997
Part
11
Pages
1531 - 1533
Database
ISI
SICI code
0108-2701(1997)53:<1531:ANHKOA>2.0.ZU;2-E
Abstract
A new hexagonal aluminium-chromium-nickel phase, Al14.4Cr3.4Ni1.1, is described. The structure includes 12 icosahedral clusters in the unit cell, each of which consists of a transition metal (TM) atom at the ce nter and 11 aluminium and one TM atom on the fivefold vertices of the icosahedron. Paris of the clusters are linked along the c axis by shar ing a triangular face. Two pairs of the clusters are joined by two tri gonal antiprisms, constructing a column along the c axis. Six such col umns are included in the unit cell and form the crystal structure. The second neighboring atoms connecting the columns are on the threefold axes of the icosahedral cluster.