Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Co-Ho-Sn”

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 Ho7Co6Sn23 by Materials Project

Ho7Co6Sn23 crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. there are two inequivalent Ho sites. In the first Ho site, Ho is bonded in a 12-coordinate geometry to six equivalent Co and twelve Sn atoms. All Ho–Co bond lengths are 3.44 Å. All Ho–Sn bond lengths are 3.36 Å. In the second Ho site, Ho is bonded in a 12-coordinate geometry to two equivalent Co and ten Sn atoms. Both Ho–Co bond lengths are 3.18 Å. There are a spread of Ho–Sn bond distances ranging from 3.09–3.41 Å. Co is bonded in a 9-coordinate geometry to three Ho and six Sn atoms. There are a spread of Co–Sn bond distances ranging from 2.59–2.79 Å. There are six inequivalent Sn sites. In the first Sn site, Sn is bonded in a 6-coordinate geometry to six equivalent Sn atoms. All Sn–Sn bond lengths are 2.99 Å. In the second Sn site, Sn is bonded in a 3-coordinate geometry to three equivalent Ho, three equivalent Co, and one Sn atom. The Sn–Sn bond length is 2.94 Å. In the third Sn site, Sn is bonded in a 4-coordinate geometry to three equivalent Ho and one Sn atom. In the fourth Sn site, Sn is bonded in a 2-coordinate geometry to three Ho and two equivalent Co atoms. In the fifth Sn site, Sn is bonded in a 5-coordinate geometry to four equivalent Ho, one Co, and one Sn atom. The Sn–Sn bond length is 3.20 Å. In the sixth Sn site, Sn is bonded in a 7-coordinate geometry to three Ho, two equivalent Co, and two Sn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HoCoSn2 by Materials Project

HoCoSn2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Ho is bonded in a 10-coordinate geometry to four equivalent Co and six Sn atoms. There are two shorter (2.89 Å) and two longer (3.02 Å) Ho–Co bond lengths. There are four shorter (3.10 Å) and two longer (3.26 Å) Ho–Sn bond lengths. Co is bonded in a distorted body-centered cubic geometry to four equivalent Ho and four equivalent Sn atoms. There are two shorter (2.53 Å) and two longer (2.66 Å) Co–Sn bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded to two equivalent Ho and two equivalent Sn atoms to form distorted corner-sharing SnHo2Sn2 tetrahedra. Both Sn–Sn bond lengths are 2.91 Å. In the second Sn site, Sn is bonded in a 8-coordinate geometry to four equivalent Ho and four equivalent Co atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HoCoSn by Materials Project

HoCoSn crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ho is bonded in a 10-coordinate geometry to four equivalent Co and six equivalent Sn atoms. There are a spread of Ho–Co bond distances ranging from 2.93–3.05 Å. There are a spread of Ho–Sn bond distances ranging from 3.11–3.25 Å. Co is bonded in a 8-coordinate geometry to four equivalent Ho and four equivalent Sn atoms. There are two shorter (2.61 Å) and two longer (2.63 Å) Co–Sn bond lengths. Sn is bonded in a 10-coordinate geometry to six equivalent Ho and four equivalent Co atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ho6Co2Sn by Materials Project

Ho6Co2Sn crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. there are three inequivalent Ho sites. In the first Ho site, Ho is bonded in a 4-coordinate geometry to two Co and two Sn atoms. There are one shorter (2.71 Å) and one longer (3.15 Å) Ho–Co bond lengths. There are one shorter (3.07 Å) and one longer (3.31 Å) Ho–Sn bond lengths. In the second Ho site, Ho is bonded in a 5-coordinate geometry to three Co and two Sn atoms. There are two shorter (2.90 Å) and one longer (3.13 Å) Ho–Co bond lengths. There are one shorter (3.20 Å) and one longer (3.62 Å) Ho–Sn bond lengths. In the third Ho site, Ho is bonded in a 4-coordinate geometry to three Co and one Sn atom. There are one shorter (2.72 Å) and two longer (2.85 Å) Ho–Co bond lengths. The Ho–Sn bond length is 3.39 Å. There are two inequivalent Co sites. In the first Co site, Co is bonded in a 2-coordinate geometry to eight Ho and one Co atom. The Co–Co bond length is 2.72 Å. In the second Co site, Co is bonded in a 9-coordinate geometry to eight Ho and one Co atom. The Co–Co bond length is 2.24 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a cuboctahedral geometry to twelve Ho atoms. In the second Sn site, Sn is bonded in a body-centered cubic geometry to eight Ho atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ho3(Co2Sn)4 by Materials Project

Ho3Co8Sn4 is Hexagonal Laves-derived structured and crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Ho is bonded in a 12-coordinate geometry to six Co and six Sn atoms. There are a spread of Ho–Co bond distances ranging from 3.03–3.38 Å. There are a spread of Ho–Sn bond distances ranging from 3.16–3.27 Å. There are four inequivalent Co sites. In the first Co site, Co is bonded in a 10-coordinate geometry to six equivalent Ho and four Sn atoms. There are three shorter (2.51 Å) and one longer (2.65 Å) Co–Sn bond lengths. In the second Co site, Co is bonded to two equivalent Ho, seven Co, and three equivalent Sn atoms to form distorted CoHo2Co7Sn3 cuboctahedra that share corners with four equivalent CoHo2Co7Sn3 cuboctahedra, corners with five equivalent SnHo4Co8 cuboctahedra, faces with six equivalent SnHo4Co8 cuboctahedra, and faces with eight CoHo2Co7Sn3 cuboctahedra. There are a spread of Co–Co bond distances ranging from 2.37–2.62 Å. There are one shorter (2.64 Å) and two longer (2.66 Å) Co–Sn bond lengths. In the third Co site, Co is bonded in a 12-coordinate geometry to two equivalent Ho, four Co, and four Sn atoms. The Co–Co bond length is 2.48 Å. There are a spread of Co–Sn bond distances ranging from 2.65–2.79 Å. In the fourth Co site, Co is bonded to nine Co and three equivalent Sn atoms to form CoCo9Sn3 cuboctahedra that share corners with three equivalent SnHo4Co8 cuboctahedra, faces with six equivalent SnHo4Co8 cuboctahedra, and faces with eight CoHo2Co7Sn3 cuboctahedra. All Co–Sn bond lengths are 2.67 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 10-coordinate geometry to six equivalent Ho and four Co atoms. In the second Sn site, Sn is bonded to four equivalent Ho and eight Co atoms to form distorted SnHo4Co8 cuboctahedra that share corners with four equivalent SnHo4Co8 cuboctahedra, corners with six CoHo2Co7Sn3 cuboctahedra, faces with eight CoHo2Co7Sn3 cuboctahedra, and faces with eight equivalent SnHo4Co8 cuboctahedra.

36 MATERIALS SCIENCE↗