Search NASA⌕ Search

SEARCH · Search NASA

Results for “Cu-Si-Sm”

Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

3 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Sm(CuSi)2 by Materials Project

SmCu2Si2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sm3+ is bonded in a distorted body-centered cubic geometry to eight equivalent Si4- atoms. All Sm–Si bond lengths are 3.09 Å. Cu+2.50+ is bonded to four equivalent Si4- atoms to form a mixture of edge and corner-sharing CuSi4 tetrahedra. All Cu–Si bond lengths are 2.40 Å. Si4- is bonded in a 9-coordinate geometry to four equivalent Sm3+, four equivalent Cu+2.50+, and one Si4- atom. The Si–Si bond length is 2.38 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SmCuSi by Materials Project

SmCuSi crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Sm3+ is bonded to six equivalent Si4- atoms to form a mixture of face, edge, and corner-sharing SmSi6 octahedra. The corner-sharing octahedral tilt angles are 46°. All Sm–Si bond lengths are 3.10 Å. Cu1+ is bonded in a trigonal planar geometry to three equivalent Si4- atoms. All Cu–Si bond lengths are 2.42 Å. Si4- is bonded in a 9-coordinate geometry to six equivalent Sm3+ and three equivalent Cu1+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SmCuSi by Materials Project

SmCuSi crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Sm3+ is bonded to six equivalent Si4- atoms to form a mixture of distorted face, edge, and corner-sharing SmSi6 pentagonal pyramids. All Sm–Si bond lengths are 3.13 Å. Cu1+ is bonded in a trigonal planar geometry to three equivalent Si4- atoms. All Cu–Si bond lengths are 2.37 Å. Si4- is bonded in a 9-coordinate geometry to six equivalent Sm3+ and three equivalent Cu1+ atoms.

36 MATERIALS SCIENCE↗