Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “MgAl3”

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 MgAl3 by Materials Project

Al3Mg is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Mg is bonded to twelve Al atoms to form MgAl12 cuboctahedra that share corners with four equivalent MgAl12 cuboctahedra, corners with eight equivalent AlMg4Al8 cuboctahedra, edges with eight equivalent MgAl12 cuboctahedra, edges with sixteen equivalent AlMg4Al8 cuboctahedra, faces with four equivalent MgAl12 cuboctahedra, and faces with fourteen AlMg4Al8 cuboctahedra. There are four shorter (2.92 Å) and eight longer (2.93 Å) Mg–Al bond lengths. There are two inequivalent Al sites. In the first Al site, Al is bonded to four equivalent Mg and eight equivalent Al atoms to form AlMg4Al8 cuboctahedra that share corners with four equivalent AlMg4Al8 cuboctahedra, corners with eight equivalent MgAl12 cuboctahedra, edges with twenty-four AlMg4Al8 cuboctahedra, faces with six equivalent MgAl12 cuboctahedra, and faces with twelve AlMg4Al8 cuboctahedra. All Al–Al bond lengths are 2.93 Å. In the second Al site, Al is bonded to four equivalent Mg and eight Al atoms to form AlMg4Al8 cuboctahedra that share corners with twelve equivalent AlMg4Al8 cuboctahedra, edges with eight equivalent MgAl12 cuboctahedra, edges with sixteen AlMg4Al8 cuboctahedra, faces with four equivalent MgAl12 cuboctahedra, and faces with fourteen AlMg4Al8 cuboctahedra. All Al–Al bond lengths are 2.92 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on MgAl3 by Materials Project

Al3Mg is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Mg is bonded to twelve Al atoms to form MgAl12 cuboctahedra that share corners with six equivalent MgAl12 cuboctahedra, corners with twelve AlMg4Al8 cuboctahedra, edges with eighteen AlMg4Al8 cuboctahedra, faces with eight equivalent MgAl12 cuboctahedra, and faces with twelve AlMg4Al8 cuboctahedra. There are six shorter (2.91 Å) and six longer (2.99 Å) Mg–Al bond lengths. There are three inequivalent Al sites. In the first Al site, Al is bonded to four equivalent Mg and eight Al atoms to form distorted AlMg4Al8 cuboctahedra that share corners with four equivalent MgAl12 cuboctahedra, corners with fourteen AlMg4Al8 cuboctahedra, edges with six equivalent MgAl12 cuboctahedra, edges with twelve AlMg4Al8 cuboctahedra, faces with four equivalent MgAl12 cuboctahedra, and faces with sixteen AlMg4Al8 cuboctahedra. There are a spread of Al–Al bond distances ranging from 2.83–2.99 Å. In the second Al site, Al is bonded to four equivalent Mg and eight Al atoms to form distorted AlMg4Al8 cuboctahedra that share corners with four equivalent MgAl12 cuboctahedra, corners with fourteen AlMg4Al8 cuboctahedra, edges with six equivalent MgAl12 cuboctahedra, edges with twelve AlMg4Al8 cuboctahedra, faces with four equivalent MgAl12 cuboctahedra, and faces with sixteen AlMg4Al8 cuboctahedra. Both Al–Al bond lengths are 2.94 Å. In the third Al site, Al is bonded to four equivalent Mg and eight Al atoms to form distorted AlMg4Al8 cuboctahedra that share corners with four equivalent MgAl12 cuboctahedra, corners with fourteen AlMg4Al8 cuboctahedra, edges with six equivalent MgAl12 cuboctahedra, edges with twelve AlMg4Al8 cuboctahedra, faces with four equivalent MgAl12 cuboctahedra, and faces with sixteen AlMg4Al8 cuboctahedra. There are one shorter (2.83 Å) and one longer (2.99 Å) Al–Al bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on MgAl3 by Materials Project

Al3Mg is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Mg is bonded in a body-centered cubic geometry to fourteen Al atoms. There are eight shorter (2.86 Å) and six longer (3.30 Å) Mg–Al bond lengths. There are two inequivalent Al sites. In the first Al site, Al is bonded in a distorted body-centered cubic geometry to six equivalent Mg and eight equivalent Al atoms. All Al–Al bond lengths are 2.86 Å. In the second Al site, Al is bonded in a body-centered cubic geometry to four equivalent Mg and four equivalent Al atoms.

36 MATERIALS SCIENCE↗