A new complex intermetallic phase in the system Al–Cu–Ta with familiar clusters and packing principles

Dshemuchadse, J.; Bigler, S.; Simonov, A.; Weber, T.; Steurer, W.

doi:10.1107/S2052519213012761

Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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Figure 10
Ternary composition diagram of the Al–Cu–Ta system with the three f.c.c. complex intermetallics cF444 {cF444-Al_63.6Ta_36.4 (Mahne & Harbrecht, 1994

; Weber et al., 2009

), cF5928 [cF(5928-20)-Al_56.6Cu_3.9Ta_39.5] and cF23256 (cF(23256-122)-Al_55.4Cu_5.4Ta_39.2; Weber et al, 2009

; Conrad et al., 2009

; all red}, as well as the new hP386-Al_57.4Cu_3.6Ta_39.0 (black). In addition, the following phases are represented: the hexagonal Laves phase hP12, the μ phase hR39, and the binaries tI8 (Al₃Ta), mP86 (Ta_52.6Al_47.4) and tP30 (Ta₂Al, $[\sigma]$ phase).

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 69| Part 3| June 2013| Pages 238-248

https://doi.org/10.1107/S2052519213012761

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