Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Sr3Pa”

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.

Materials Data on Sr3Pa by Materials Project

Sr3Pa is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Sr is bonded to eight equivalent Sr and four equivalent Pa atoms to form distorted SrSr8Pa4 cuboctahedra that share corners with twelve equivalent SrSr8Pa4 cuboctahedra, edges with eight equivalent PaSr12 cuboctahedra, edges with sixteen equivalent SrSr8Pa4 cuboctahedra, faces with four equivalent PaSr12 cuboctahedra, and faces with fourteen equivalent SrSr8Pa4 cuboctahedra. All Sr–Sr bond lengths are 3.99 Å. All Sr–Pa bond lengths are 3.99 Å. Pa is bonded to twelve equivalent Sr atoms to form PaSr12 cuboctahedra that share corners with twelve equivalent PaSr12 cuboctahedra, edges with twenty-four equivalent SrSr8Pa4 cuboctahedra, faces with six equivalent PaSr12 cuboctahedra, and faces with twelve equivalent SrSr8Pa4 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on Sr3Pa by Materials Project

Sr3Pa is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. there are two inequivalent Sr sites. In the first Sr site, Sr is bonded to four equivalent Sr and four equivalent Pa atoms to form a mixture of distorted edge, face, and corner-sharing SrSr4Pa4 tetrahedra. All Sr–Sr bond lengths are 3.88 Å. All Sr–Pa bond lengths are 3.88 Å. In the second Sr site, Sr is bonded in a 8-coordinate geometry to eight equivalent Sr and six equivalent Pa atoms. All Sr–Pa bond lengths are 4.48 Å. Pa is bonded in a distorted body-centered cubic geometry to fourteen Sr atoms.

36 MATERIALS SCIENCE↗