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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Cr3Fe by Materials Project

Cr3Fe is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. there are two inequivalent Cr sites. In the first Cr site, Cr is bonded in a distorted body-centered cubic geometry to four equivalent Cr and four equivalent Fe atoms. All Cr–Cr bond lengths are 2.47 Å. All Cr–Fe bond lengths are 2.47 Å. In the second Cr site, Cr is bonded in a 8-coordinate geometry to eight equivalent Cr and six equivalent Fe atoms. All Cr–Fe bond lengths are 2.85 Å. Fe is bonded in a distorted body-centered cubic geometry to fourteen Cr atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Cr3Fe by Materials Project

Cr3Fe is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Cr is bonded to eight equivalent Cr and four equivalent Fe atoms to form CrCr8Fe4 cuboctahedra that share corners with twelve equivalent CrCr8Fe4 cuboctahedra, edges with eight equivalent FeCr12 cuboctahedra, edges with sixteen equivalent CrCr8Fe4 cuboctahedra, faces with four equivalent FeCr12 cuboctahedra, and faces with fourteen equivalent CrCr8Fe4 cuboctahedra. All Cr–Cr bond lengths are 2.53 Å. All Cr–Fe bond lengths are 2.53 Å. Fe is bonded to twelve equivalent Cr atoms to form FeCr12 cuboctahedra that share corners with twelve equivalent FeCr12 cuboctahedra, edges with twenty-four equivalent CrCr8Fe4 cuboctahedra, faces with six equivalent FeCr12 cuboctahedra, and faces with twelve equivalent CrCr8Fe4 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Cr3Fe by Materials Project

Cr3Fe is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Cr sites. In the first Cr site, Cr is bonded to eight equivalent Cr and four equivalent Fe atoms to form CrCr8Fe4 cuboctahedra that share corners with four equivalent CrCr8Fe4 cuboctahedra, corners with eight equivalent FeCr12 cuboctahedra, edges with twenty-four CrCr8Fe4 cuboctahedra, faces with six equivalent FeCr12 cuboctahedra, and faces with twelve CrCr8Fe4 cuboctahedra. All Cr–Cr bond lengths are 2.55 Å. All Cr–Fe bond lengths are 2.48 Å. In the second Cr site, Cr is bonded to eight Cr and four equivalent Fe atoms to form CrCr8Fe4 cuboctahedra that share corners with twelve equivalent CrCr8Fe4 cuboctahedra, edges with eight equivalent FeCr12 cuboctahedra, edges with sixteen CrCr8Fe4 cuboctahedra, faces with four equivalent FeCr12 cuboctahedra, and faces with fourteen CrCr8Fe4 cuboctahedra. All Cr–Cr bond lengths are 2.48 Å. All Cr–Fe bond lengths are 2.55 Å. Fe is bonded to twelve Cr atoms to form FeCr12 cuboctahedra that share corners with four equivalent FeCr12 cuboctahedra, corners with eight equivalent CrCr8Fe4 cuboctahedra, edges with eight equivalent FeCr12 cuboctahedra, edges with sixteen equivalent CrCr8Fe4 cuboctahedra, faces with four equivalent FeCr12 cuboctahedra, and faces with fourteen CrCr8Fe4 cuboctahedra.

36 MATERIALS SCIENCE↗