Search NASA⌕ Search

SEARCH · Search NASA

Results for “Cd-Cu”

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 Cd5Cu2 by Materials Project

Cu2Cd5 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are two inequivalent Cu sites. In the first Cu site, Cu is bonded to two equivalent Cu and ten Cd atoms to form distorted CuCd10Cu2 cuboctahedra that share corners with four equivalent CuCd10Cu2 cuboctahedra, faces with two equivalent CdCd6Cu6 cuboctahedra, and faces with six equivalent CuCd10Cu2 cuboctahedra. Both Cu–Cu bond lengths are 2.78 Å. There are a spread of Cu–Cd bond distances ranging from 2.73–3.14 Å. In the second Cu site, Cu is bonded in a 9-coordinate geometry to nine Cd atoms. There are six shorter (2.63 Å) and three longer (2.95 Å) Cu–Cd bond lengths. There are three inequivalent Cd sites. In the first Cd site, Cd is bonded in a 1-coordinate geometry to four Cu and nine Cd atoms. There are a spread of Cd–Cd bond distances ranging from 2.96–3.25 Å. In the second Cd site, Cd is bonded in a 3-coordinate geometry to three Cu and eight equivalent Cd atoms. In the third Cd site, Cd is bonded to six equivalent Cu and six equivalent Cd atoms to form distorted CdCd6Cu6 cuboctahedra that share faces with two equivalent CdCd6Cu6 cuboctahedra and faces with six equivalent CuCd10Cu2 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CdCu2 by Materials Project

Cu2Cd is Hexagonal Laves-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are three inequivalent Cu sites. In the first Cu site, Cu is bonded to six Cu and six Cd atoms to form a mixture of edge, face, and corner-sharing CuCd6Cu6 cuboctahedra. There are a spread of Cu–Cu bond distances ranging from 2.49–2.56 Å. There are two shorter (2.90 Å) and four longer (2.95 Å) Cu–Cd bond lengths. In the second Cu site, Cu is bonded to six Cu and six Cd atoms to form a mixture of edge, face, and corner-sharing CuCd6Cu6 cuboctahedra. All Cu–Cu bond lengths are 2.50 Å. There are three shorter (2.95 Å) and three longer (2.96 Å) Cu–Cd bond lengths. In the third Cu site, Cu is bonded to six Cu and six Cd atoms to form a mixture of edge, face, and corner-sharing CuCd6Cu6 cuboctahedra. All Cu–Cu bond lengths are 2.52 Å. There are two shorter (2.91 Å) and four longer (2.95 Å) Cu–Cd bond lengths. There are six inequivalent Cd sites. In the first Cd site, Cd is bonded in a 12-coordinate geometry to twelve Cu and four Cd atoms. All Cd–Cu bond lengths are 2.91 Å. There are one shorter (3.04 Å) and three longer (3.08 Å) Cd–Cd bond lengths. In the second Cd site, Cd is bonded in a 12-coordinate geometry to twelve Cu and four Cd atoms. All Cd–Cu bond lengths are 2.96 Å. There are one shorter (3.05 Å) and three longer (3.08 Å) Cd–Cd bond lengths. In the third Cd site, Cd is bonded in a 12-coordinate geometry to twelve Cu and four Cd atoms. There are three shorter (2.91 Å) and nine longer (2.95 Å) Cd–Cu bond lengths. There are one shorter (3.04 Å) and three longer (3.08 Å) Cd–Cd bond lengths. In the fourth Cd site, Cd is bonded in a 12-coordinate geometry to twelve Cu and four Cd atoms. All Cd–Cd bond lengths are 3.08 Å. In the fifth Cd site, Cd is bonded in a 12-coordinate geometry to twelve Cu and four Cd atoms. All Cd–Cu bond lengths are 2.95 Å. In the sixth Cd site, Cd is bonded in a 12-coordinate geometry to twelve Cu and four Cd atoms. All Cd–Cu bond lengths are 2.95 Å.

36 MATERIALS SCIENCE↗