Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Ca-Cu-Ga-O-Ru”

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 CaGa2Cu3(RuO6)2 by Materials Project

CaCu3Ga2(RuO6)2 crystallizes in the cubic Pn-3 space group. The structure is three-dimensional. Ca2+ is bonded to twelve equivalent O2- atoms to form CaO12 cuboctahedra that share faces with four equivalent RuO6 octahedra and faces with four equivalent GaO6 octahedra. All Ca–O bond lengths are 2.64 Å. Ru5+ is bonded to six equivalent O2- atoms to form RuO6 octahedra that share corners with six equivalent GaO6 octahedra and faces with two equivalent CaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 42°. All Ru–O bond lengths are 1.99 Å. Cu2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Cu–O bond lengths are 1.94 Å. Ga3+ is bonded to six equivalent O2- atoms to form GaO6 octahedra that share corners with six equivalent RuO6 octahedra and faces with two equivalent CaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 42°. All Ga–O bond lengths are 2.01 Å. O2- is bonded in a 4-coordinate geometry to one Ca2+, one Ru5+, one Cu2+, and one Ga3+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CaGa2Cu3(RuO6)2 by Materials Project

CaCu3Ga2(RuO6)2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Ca2+ is bonded to twelve O2- atoms to form CaO12 cuboctahedra that share faces with four equivalent RuO6 octahedra and faces with four equivalent GaO6 octahedra. There are a spread of Ca–O bond distances ranging from 2.61–2.64 Å. Ru5+ is bonded to six O2- atoms to form RuO6 octahedra that share corners with two equivalent RuO6 octahedra, corners with four equivalent GaO6 octahedra, and faces with two equivalent CaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 42–43°. There is two shorter (1.98 Å) and four longer (1.99 Å) Ru–O bond length. There are three inequivalent Cu2+ sites. In the first Cu2+ site, Cu2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Cu–O bond lengths are 1.92 Å. In the second Cu2+ site, Cu2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Cu–O bond lengths are 1.92 Å. In the third Cu2+ site, Cu2+ is bonded in a square co-planar geometry to four O2- atoms. There is two shorter (1.93 Å) and two longer (1.94 Å) Cu–O bond length. Ga3+ is bonded to six O2- atoms to form GaO6 octahedra that share corners with two equivalent GaO6 octahedra, corners with four equivalent RuO6 octahedra, and faces with two equivalent CaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 42–43°. There are a spread of Ga–O bond distances ranging from 1.99–2.03 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to one Ca2+, one Cu2+, and two equivalent Ga3+ atoms. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Ca2+, two equivalent Ru5+, and one Cu2+ atom. In the third O2- site, O2- is bonded in a 4-coordinate geometry to one Ca2+, one Ru5+, one Cu2+, and one Ga3+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Ca2+, one Ru5+, one Cu2+, and one Ga3+ atom.

36 MATERIALS SCIENCE↗