Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Ga-Hf-Rh”

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 HfGaRh2 by Materials Project

HfRh2Ga is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Hf is bonded in a body-centered cubic geometry to eight equivalent Rh atoms. All Hf–Rh bond lengths are 2.74 Å. Rh is bonded in a body-centered cubic geometry to four equivalent Hf and four equivalent Ga atoms. All Rh–Ga bond lengths are 2.74 Å. Ga is bonded in a distorted body-centered cubic geometry to eight equivalent Rh atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Hf6Ga16Rh7 by Materials Project

Hf6Rh7Ga16 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Hf is bonded in a 4-coordinate geometry to four equivalent Ga atoms. All Hf–Ga bond lengths are 2.77 Å. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded to eight Ga atoms to form distorted edge-sharing RhGa8 cuboctahedra. There are four shorter (2.53 Å) and four longer (2.70 Å) Rh–Ga bond lengths. In the second Rh site, Rh is bonded in a body-centered cubic geometry to eight equivalent Ga atoms. All Rh–Ga bond lengths are 2.61 Å. There are two inequivalent Ga sites. In the first Ga site, Ga is bonded in a 6-coordinate geometry to three equivalent Hf and three equivalent Rh atoms. In the second Ga site, Ga is bonded in a 4-coordinate geometry to four Rh atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfGaRh by Materials Project

HfRhGa crystallizes in the trigonal P31m space group. The structure is three-dimensional. Hf is bonded in a 11-coordinate geometry to five Rh and six equivalent Ga atoms. There are four shorter (2.79 Å) and one longer (2.86 Å) Hf–Rh bond lengths. There are a spread of Hf–Ga bond distances ranging from 2.94–3.03 Å. There are two inequivalent Rh sites. In the first Rh site, Rh is bonded in a 9-coordinate geometry to three equivalent Hf and six equivalent Ga atoms. There are three shorter (2.59 Å) and three longer (2.60 Å) Rh–Ga bond lengths. In the second Rh site, Rh is bonded in a 9-coordinate geometry to six equivalent Hf and three equivalent Ga atoms. All Rh–Ga bond lengths are 2.68 Å. Ga is bonded in a 10-coordinate geometry to six equivalent Hf and four Rh atoms.

36 MATERIALS SCIENCE↗