Search NASA⌕ Search

SEARCH · Search NASA

Results for “Nb-Ni-P”

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 Nb5(NiP)4 by Materials Project

Nb5(NiP)4 crystallizes in the tetragonal I4/m space group. The structure is three-dimensional. there are two inequivalent Nb sites. In the first Nb site, Nb is bonded in a 5-coordinate geometry to five equivalent P atoms. There are a spread of Nb–P bond distances ranging from 2.59–2.72 Å. In the second Nb site, Nb is bonded in a square co-planar geometry to four equivalent P atoms. All Nb–P bond lengths are 2.65 Å. Ni is bonded in a 3-coordinate geometry to three equivalent P atoms. There are two shorter (2.22 Å) and one longer (2.27 Å) Ni–P bond lengths. P is bonded in a 9-coordinate geometry to six Nb and three equivalent Ni atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NbNiP by Materials Project

PNiNb crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Nb2+ is bonded to five equivalent P3- atoms to form distorted NbP5 trigonal bipyramids that share corners with eight equivalent NiP4 tetrahedra, corners with eight equivalent NbP5 trigonal bipyramids, edges with six equivalent NiP4 tetrahedra, and edges with six equivalent NbP5 trigonal bipyramids. There are a spread of Nb–P bond distances ranging from 2.60–2.63 Å. Ni1+ is bonded to four equivalent P3- atoms to form NiP4 tetrahedra that share corners with eight equivalent NiP4 tetrahedra, corners with eight equivalent NbP5 trigonal bipyramids, edges with two equivalent NiP4 tetrahedra, and edges with six equivalent NbP5 trigonal bipyramids. There are three shorter (2.29 Å) and one longer (2.36 Å) Ni–P bond lengths. P3- is bonded in a 9-coordinate geometry to five equivalent Nb2+ and four equivalent Ni1+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NbNiP2 by Materials Project

NbNiP2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Nb5+ is bonded to seven P3- atoms to form distorted NbP7 pentagonal bipyramids that share corners with four equivalent NbP7 pentagonal bipyramids, corners with ten equivalent NiP5 trigonal bipyramids, edges with four equivalent NbP7 pentagonal bipyramids, edges with two equivalent NiP5 trigonal bipyramids, faces with two equivalent NbP7 pentagonal bipyramids, and a faceface with one NiP5 trigonal bipyramid. There are a spread of Nb–P bond distances ranging from 2.53–2.69 Å. Ni1+ is bonded to five P3- atoms to form distorted NiP5 trigonal bipyramids that share corners with ten equivalent NbP7 pentagonal bipyramids, edges with two equivalent NbP7 pentagonal bipyramids, edges with four equivalent NiP5 trigonal bipyramids, and a faceface with one NbP7 pentagonal bipyramid. There are a spread of Ni–P bond distances ranging from 2.27–2.37 Å. There are two inequivalent P3- sites. In the first P3- site, P3- is bonded in a 6-coordinate geometry to three equivalent Nb5+ and three equivalent Ni1+ atoms. In the second P3- site, P3- is bonded to four equivalent Nb5+ and two equivalent Ni1+ atoms to form a mixture of distorted face, edge, and corner-sharing PNb4Ni2 pentagonal pyramids.

36 MATERIALS SCIENCE↗