SEARCH · Search NASA

Results for “NbCr3”

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.

SourceResearch connectionFrom yearThrough year

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

5 records

All sources NASA NTRS DOE OSTI

DOE OSTI2020

Materials Data on NbCr3 by Materials Project

CrCr2Nb 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 Cr atoms. There are eight shorter (2.58 Å) and six longer (2.98 Å) Nb–Cr bond lengths. There are two inequivalent Cr sites. In the first Cr site, Cr is bonded in a distorted body-centered cubic geometry to four equivalent Nb and four equivalent Cr atoms. All Cr–Cr bond lengths are 2.58 Å. In the second Cr site, Cr is bonded in a distorted body-centered cubic geometry to six equivalent Nb and eight equivalent Cr atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on NbCr3 by Materials Project

CrCr2Nb is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Nb is bonded to twelve Cr atoms to form distorted NbCr12 cuboctahedra that share corners with four equivalent NbCr12 cuboctahedra, edges with eight equivalent NbCr12 cuboctahedra, edges with sixteen equivalent CrNb4Cr8 cuboctahedra, faces with four equivalent NbCr12 cuboctahedra, and faces with eight equivalent CrNb4Cr8 cuboctahedra. There are four shorter (2.48 Å) and eight longer (2.83 Å) Nb–Cr bond lengths. There are two inequivalent Cr sites. In the first Cr site, Cr is bonded in a distorted square co-planar geometry to four equivalent Nb and eight equivalent Cr atoms. All Cr–Cr bond lengths are 2.83 Å. In the second Cr site, Cr is bonded to four equivalent Nb and eight Cr atoms to form distorted CrNb4Cr8 cuboctahedra that share corners with twelve equivalent CrNb4Cr8 cuboctahedra, edges with eight equivalent NbCr12 cuboctahedra, edges with eight equivalent CrNb4Cr8 cuboctahedra, faces with four equivalent NbCr12 cuboctahedra, and faces with ten equivalent CrNb4Cr8 cuboctahedra. All Cr–Cr bond lengths are 2.48 Å.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on NbCr3 by Materials Project

CrCr2Nb is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Nb is bonded to twelve equivalent Cr atoms to form NbCr12 cuboctahedra that share corners with twelve equivalent NbCr12 cuboctahedra, edges with twenty-four equivalent CrNb4Cr8 cuboctahedra, faces with six equivalent NbCr12 cuboctahedra, and faces with twelve equivalent CrNb4Cr8 cuboctahedra. All Nb–Cr bond lengths are 2.69 Å. Cr is bonded to four equivalent Nb and eight equivalent Cr atoms to form CrNb4Cr8 cuboctahedra that share corners with twelve equivalent CrNb4Cr8 cuboctahedra, edges with eight equivalent NbCr12 cuboctahedra, edges with sixteen equivalent CrNb4Cr8 cuboctahedra, faces with four equivalent NbCr12 cuboctahedra, and faces with fourteen equivalent CrNb4Cr8 cuboctahedra. All Cr–Cr bond lengths are 2.69 Å.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on NbCr3(AgS4)2 by Materials Project

Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on NbCr3(CuS4)2 by Materials Project

36 MATERIALS SCIENCE↗