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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on UAl2Cu by Materials Project

UCuAl2 is Heusler structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. U is bonded in a distorted body-centered cubic geometry to six equivalent Cu and eight equivalent Al atoms. There are four shorter (3.31 Å) and two longer (3.33 Å) U–Cu bond lengths. All U–Al bond lengths are 2.88 Å. Cu is bonded in a distorted body-centered cubic geometry to six equivalent U and eight equivalent Al atoms. All Cu–Al bond lengths are 2.88 Å. Al is bonded in a body-centered cubic geometry to four equivalent U and four equivalent Cu atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on U2AlCu3 by Materials Project

U2Cu3Al crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. U is bonded in a 10-coordinate geometry to one U and nine equivalent Cu atoms. The U–U bond length is 2.52 Å. There are three shorter (2.98 Å) and six longer (3.00 Å) U–Cu bond lengths. Cu is bonded in a 12-coordinate geometry to six equivalent U, four equivalent Cu, and two equivalent Al atoms. There are two shorter (2.59 Å) and two longer (2.86 Å) Cu–Cu bond lengths. Both Cu–Al bond lengths are 2.53 Å. Al is bonded in a 12-coordinate geometry to six equivalent Cu atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on UAl2Cu3 by Materials Project

UCu3Al2 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. U is bonded in a 6-coordinate geometry to twelve equivalent Cu and six equivalent Al atoms. All U–Cu bond lengths are 3.29 Å. All U–Al bond lengths are 3.03 Å. Cu is bonded to four equivalent U and four equivalent Al atoms to form a mixture of distorted corner, edge, and face-sharing CuU4Al4 cuboctahedra. All Cu–Al bond lengths are 2.50 Å. Al is bonded in a 12-coordinate geometry to three equivalent U and six equivalent Cu atoms.

36 MATERIALS SCIENCE↗