Search NASA⌕ Search

SEARCH · Search NASA

Results for “NbNi3”

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 NbNi3 by Materials Project

Ni3Nb is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Nb is bonded to twelve Ni atoms to form NbNi12 cuboctahedra that share corners with four equivalent NbNi12 cuboctahedra, corners with eight equivalent NiNb4Ni8 cuboctahedra, edges with eight equivalent NbNi12 cuboctahedra, edges with sixteen equivalent NiNb4Ni8 cuboctahedra, faces with four equivalent NbNi12 cuboctahedra, and faces with fourteen NiNb4Ni8 cuboctahedra. There are four shorter (2.57 Å) and eight longer (2.62 Å) Nb–Ni bond lengths. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded to four equivalent Nb and eight equivalent Ni atoms to form distorted NiNb4Ni8 cuboctahedra that share corners with four equivalent NiNb4Ni8 cuboctahedra, corners with eight equivalent NbNi12 cuboctahedra, edges with twenty-four NiNb4Ni8 cuboctahedra, faces with six equivalent NbNi12 cuboctahedra, and faces with twelve NiNb4Ni8 cuboctahedra. All Ni–Ni bond lengths are 2.62 Å. In the second Ni site, Ni is bonded to four equivalent Nb and eight Ni atoms to form NiNb4Ni8 cuboctahedra that share corners with twelve equivalent NiNb4Ni8 cuboctahedra, edges with eight equivalent NbNi12 cuboctahedra, edges with sixteen NiNb4Ni8 cuboctahedra, faces with four equivalent NbNi12 cuboctahedra, and faces with fourteen NiNb4Ni8 cuboctahedra. All Ni–Ni bond lengths are 2.57 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NbNi3 by Materials Project

Ni3Nb is beta Cu3Ti structured and crystallizes in the orthorhombic Pmmn space group. The structure is three-dimensional. Nb is bonded to twelve Ni atoms to form NbNi12 cuboctahedra that share corners with two equivalent NbNi12 cuboctahedra, corners with sixteen NiNb4Ni8 cuboctahedra, edges with six equivalent NbNi12 cuboctahedra, edges with twelve equivalent NiNb4Ni8 cuboctahedra, faces with six equivalent NbNi12 cuboctahedra, and faces with fourteen NiNb4Ni8 cuboctahedra. There are a spread of Nb–Ni bond distances ranging from 2.56–2.66 Å. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded to four equivalent Nb and eight Ni atoms to form distorted NiNb4Ni8 cuboctahedra that share corners with four equivalent NbNi12 cuboctahedra, corners with fourteen NiNb4Ni8 cuboctahedra, edges with six equivalent NbNi12 cuboctahedra, edges with twelve NiNb4Ni8 cuboctahedra, faces with four equivalent NbNi12 cuboctahedra, and faces with sixteen NiNb4Ni8 cuboctahedra. There are a spread of Ni–Ni bond distances ranging from 2.54–2.72 Å. In the second Ni site, Ni is bonded to four equivalent Nb and eight equivalent Ni atoms to form distorted NiNb4Ni8 cuboctahedra that share corners with eight equivalent NbNi12 cuboctahedra, corners with ten NiNb4Ni8 cuboctahedra, edges with eighteen NiNb4Ni8 cuboctahedra, faces with six equivalent NbNi12 cuboctahedra, and faces with fourteen NiNb4Ni8 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NbNi3 by Materials Project

Ni3Nb is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Nb is bonded in a distorted body-centered cubic geometry to fourteen Ni atoms. There are eight shorter (2.54 Å) and six longer (2.93 Å) Nb–Ni bond lengths. There are two inequivalent Ni sites. In the first Ni site, Ni is bonded in a 8-coordinate geometry to six equivalent Nb and eight equivalent Ni atoms. All Ni–Ni bond lengths are 2.54 Å. In the second Ni site, Ni is bonded in a distorted body-centered cubic geometry to four equivalent Nb and four equivalent Ni atoms.

36 MATERIALS SCIENCE↗