Search NASA⌕ Search

SEARCH · Search NASA

Results for “Ni3Au”

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.

2 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Ni3Au by Materials Project

Ni3Au is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Ni sites. In the first Ni site, Ni is bonded to eight Ni and four equivalent Au atoms to form distorted NiNi8Au4 cuboctahedra that share corners with twelve equivalent NiNi8Au4 cuboctahedra, edges with eight equivalent AuNi12 cuboctahedra, edges with sixteen NiNi8Au4 cuboctahedra, faces with four equivalent AuNi12 cuboctahedra, and faces with fourteen NiNi8Au4 cuboctahedra. There are four shorter (2.60 Å) and four longer (2.62 Å) Ni–Ni bond lengths. All Ni–Au bond lengths are 2.62 Å. In the second Ni site, Ni is bonded to eight equivalent Ni and four equivalent Au atoms to form distorted NiNi8Au4 cuboctahedra that share corners with four equivalent NiNi8Au4 cuboctahedra, corners with eight equivalent AuNi12 cuboctahedra, edges with twenty-four NiNi8Au4 cuboctahedra, faces with six equivalent AuNi12 cuboctahedra, and faces with twelve NiNi8Au4 cuboctahedra. All Ni–Au bond lengths are 2.60 Å. Au is bonded to twelve Ni atoms to form AuNi12 cuboctahedra that share corners with four equivalent AuNi12 cuboctahedra, corners with eight equivalent NiNi8Au4 cuboctahedra, edges with eight equivalent AuNi12 cuboctahedra, edges with sixteen equivalent NiNi8Au4 cuboctahedra, faces with four equivalent AuNi12 cuboctahedra, and faces with fourteen NiNi8Au4 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ni3Au by Materials Project

Ni3Au is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are three inequivalent Ni sites. In the first Ni site, Ni is bonded to eight Ni and four equivalent Au atoms to form distorted NiNi8Au4 cuboctahedra that share corners with four equivalent AuNi12 cuboctahedra, corners with fourteen equivalent NiNi8Au4 cuboctahedra, edges with six equivalent AuNi12 cuboctahedra, edges with twelve NiNi8Au4 cuboctahedra, faces with four equivalent AuNi12 cuboctahedra, and faces with sixteen NiNi8Au4 cuboctahedra. There are a spread of Ni–Ni bond distances ranging from 2.49–2.74 Å. There are two shorter (2.62 Å) and two longer (2.65 Å) Ni–Au bond lengths. In the second Ni site, Ni is bonded to eight Ni and four equivalent Au atoms to form distorted NiNi8Au4 cuboctahedra that share corners with four equivalent AuNi12 cuboctahedra, corners with fourteen NiNi8Au4 cuboctahedra, edges with six equivalent AuNi12 cuboctahedra, edges with twelve NiNi8Au4 cuboctahedra, faces with four equivalent AuNi12 cuboctahedra, and faces with sixteen NiNi8Au4 cuboctahedra. There are a spread of Ni–Ni bond distances ranging from 2.49–2.74 Å. There are two shorter (2.62 Å) and two longer (2.65 Å) Ni–Au bond lengths. In the third Ni site, Ni is bonded to eight Ni and four equivalent Au atoms to form distorted NiNi8Au4 cuboctahedra that share corners with four equivalent AuNi12 cuboctahedra, corners with fourteen NiNi8Au4 cuboctahedra, edges with six equivalent AuNi12 cuboctahedra, edges with twelve NiNi8Au4 cuboctahedra, faces with four equivalent AuNi12 cuboctahedra, and faces with sixteen NiNi8Au4 cuboctahedra. There are two shorter (2.62 Å) and two longer (2.65 Å) Ni–Au bond lengths. Au is bonded to twelve Ni atoms to form AuNi12 cuboctahedra that share corners with six equivalent AuNi12 cuboctahedra, corners with twelve NiNi8Au4 cuboctahedra, edges with eighteen NiNi8Au4 cuboctahedra, faces with eight equivalent AuNi12 cuboctahedra, and faces with twelve NiNi8Au4 cuboctahedra.

36 MATERIALS SCIENCE↗