Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Co-Ge-Tm”

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.

5 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Tm(CoGe)2 by Materials Project

TmCo2Ge2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Tm is bonded in a 8-coordinate geometry to eight equivalent Co and eight equivalent Ge atoms. All Tm–Co bond lengths are 3.20 Å. All Tm–Ge bond lengths are 3.06 Å. Co is bonded to four equivalent Tm and four equivalent Ge atoms to form a mixture of distorted face, edge, and corner-sharing CoTm4Ge4 tetrahedra. All Co–Ge bond lengths are 2.33 Å. Ge is bonded in a 9-coordinate geometry to four equivalent Tm, four equivalent Co, and one Ge atom. The Ge–Ge bond length is 2.55 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tm2CoGe2 by Materials Project

Tm2CoGe2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent Tm sites. In the first Tm site, Tm is bonded in a 8-coordinate geometry to two equivalent Co and six Ge atoms. Both Tm–Co bond lengths are 3.06 Å. There are a spread of Tm–Ge bond distances ranging from 2.86–3.02 Å. In the second Tm site, Tm is bonded in a 11-coordinate geometry to four equivalent Co and seven Ge atoms. There are one shorter (2.92 Å) and three longer (3.04 Å) Tm–Co bond lengths. There are a spread of Tm–Ge bond distances ranging from 2.89–3.13 Å. Co is bonded in a 10-coordinate geometry to six Tm and four Ge atoms. There are a spread of Co–Ge bond distances ranging from 2.36–2.57 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to seven Tm, one Co, and one Ge atom. The Ge–Ge bond length is 2.64 Å. In the second Ge site, Ge is bonded in a 10-coordinate geometry to six Tm, three equivalent Co, and one Ge atom. The Ge–Ge bond length is 2.80 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TmCoGe2 by Materials Project

TmCoGe2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Tm is bonded in a 8-coordinate geometry to four equivalent Co and ten Ge atoms. All Tm–Co bond lengths are 3.16 Å. There are a spread of Tm–Ge bond distances ranging from 3.01–3.20 Å. Co is bonded in a 5-coordinate geometry to four equivalent Tm and five Ge atoms. There are a spread of Co–Ge bond distances ranging from 2.25–2.37 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 1-coordinate geometry to six equivalent Tm, one Co, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.53 Å. In the second Ge site, Ge is bonded in a 4-coordinate geometry to four equivalent Tm and four equivalent Co atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tm3Co4Ge13 by Materials Project

Tm3Co4Ge13 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. Tm is bonded in a 12-coordinate geometry to four equivalent Co and twelve equivalent Ge atoms. All Tm–Co bond lengths are 3.09 Å. There are four shorter (3.07 Å) and eight longer (3.08 Å) Tm–Ge bond lengths. Co is bonded in a 6-coordinate geometry to three equivalent Tm and six equivalent Ge atoms. All Co–Ge bond lengths are 2.40 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to three equivalent Tm, two equivalent Co, and four Ge atoms. There are a spread of Ge–Ge bond distances ranging from 2.69–2.99 Å. In the second Ge site, Ge is bonded in a cuboctahedral geometry to twelve equivalent Ge atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TmCoGe by Materials Project

TmCoGe crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Tm is bonded in a 12-coordinate geometry to six equivalent Co and six equivalent Ge atoms. There are a spread of Tm–Co bond distances ranging from 2.88–3.29 Å. There are a spread of Tm–Ge bond distances ranging from 2.92–3.19 Å. Co is bonded in a 10-coordinate geometry to six equivalent Tm and four equivalent Ge atoms. There are a spread of Co–Ge bond distances ranging from 2.44–2.56 Å. Ge is bonded in a 10-coordinate geometry to six equivalent Tm and four equivalent Co atoms.

36 MATERIALS SCIENCE↗