Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “ScAl3”

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.

2 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on ScAl3 by Materials Project

Al3Sc is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Sc is bonded to twelve equivalent Al atoms to form ScAl12 cuboctahedra that share corners with twelve equivalent ScAl12 cuboctahedra, edges with twenty-four equivalent AlSc4Al8 cuboctahedra, faces with six equivalent ScAl12 cuboctahedra, and faces with twelve equivalent AlSc4Al8 cuboctahedra. All Sc–Al bond lengths are 2.90 Å. Al is bonded to four equivalent Sc and eight equivalent Al atoms to form AlSc4Al8 cuboctahedra that share corners with twelve equivalent AlSc4Al8 cuboctahedra, edges with eight equivalent ScAl12 cuboctahedra, edges with sixteen equivalent AlSc4Al8 cuboctahedra, faces with four equivalent ScAl12 cuboctahedra, and faces with fourteen equivalent AlSc4Al8 cuboctahedra. All Al–Al bond lengths are 2.90 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ScAl3 by Materials Project

Al3Sc is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sc is bonded to twelve Al atoms to form ScAl12 cuboctahedra that share corners with four equivalent ScAl12 cuboctahedra, edges with eight equivalent ScAl12 cuboctahedra, edges with sixteen equivalent AlSc4Al8 cuboctahedra, faces with four equivalent ScAl12 cuboctahedra, and faces with eight equivalent AlSc4Al8 cuboctahedra. There are four shorter (2.85 Å) and eight longer (2.99 Å) Sc–Al bond lengths. There are two inequivalent Al sites. In the first Al site, Al is bonded to four equivalent Sc and eight Al atoms to form AlSc4Al8 cuboctahedra that share corners with twelve equivalent AlSc4Al8 cuboctahedra, edges with eight equivalent ScAl12 cuboctahedra, edges with eight equivalent AlSc4Al8 cuboctahedra, faces with four equivalent ScAl12 cuboctahedra, and faces with ten equivalent AlSc4Al8 cuboctahedra. There are four shorter (2.85 Å) and four longer (2.99 Å) Al–Al bond lengths. In the second Al site, Al is bonded in a distorted square co-planar geometry to four equivalent Sc and eight equivalent Al atoms.

36 MATERIALS SCIENCE↗