Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Co-Mn-Pr”

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.

Materials Data on Pr2Mn4Co13 by Materials Project

Pr2Mn4Co13 crystallizes in the trigonal R3m space group. The structure is three-dimensional. there are two inequivalent Pr sites. In the first Pr site, Pr is bonded in a 10-coordinate geometry to three equivalent Mn and sixteen Co atoms. All Pr–Mn bond lengths are 3.23 Å. There are a spread of Pr–Co bond distances ranging from 3.03–3.22 Å. In the second Pr site, Pr is bonded in a 10-coordinate geometry to four Mn and fifteen Co atoms. There are one shorter (3.08 Å) and three longer (3.33 Å) Pr–Mn bond lengths. There are a spread of Pr–Co bond distances ranging from 3.06–3.21 Å. There are two inequivalent Mn sites. In the first Mn site, Mn is bonded in a 9-coordinate geometry to two Pr, one Mn, and nine Co atoms. The Mn–Mn bond length is 2.66 Å. There are a spread of Mn–Co bond distances ranging from 2.42–2.55 Å. In the second Mn site, Mn is bonded in a 1-coordinate geometry to one Pr, three equivalent Mn, and ten Co atoms. There are a spread of Mn–Co bond distances ranging from 2.37–2.69 Å. There are four inequivalent Co sites. In the first Co site, Co is bonded in a 12-coordinate geometry to two Pr, three Mn, and seven Co atoms. There are a spread of Co–Co bond distances ranging from 2.42–2.70 Å. In the second Co site, Co is bonded to three Pr, three Mn, and six Co atoms to form a mixture of distorted face, edge, and corner-sharing CoPr3Mn3Co6 cuboctahedra. Both Co–Co bond lengths are 2.46 Å. In the third Co site, Co is bonded to three Pr, two equivalent Mn, and seven Co atoms to form a mixture of distorted face, edge, and corner-sharing CoPr3Mn2Co7 cuboctahedra. The Co–Co bond length is 2.65 Å. In the fourth Co site, Co is bonded in a 4-coordinate geometry to one Pr, four Mn, and nine Co atoms.

36 MATERIALS SCIENCE↗

Materials Data on Pr2Mn12Co5 by Materials Project

Pr2Mn12Co5 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent Pr sites. In the first Pr site, Pr is bonded in a 12-coordinate geometry to eighteen Mn atoms. There are a spread of Pr–Mn bond distances ranging from 3.12–3.45 Å. In the second Pr site, Pr is bonded in a 2-coordinate geometry to twelve Mn and eight Co atoms. There are a spread of Pr–Mn bond distances ranging from 2.97–3.24 Å. There are two shorter (2.84 Å) and six longer (3.21 Å) Pr–Co bond lengths. There are five inequivalent Mn sites. In the first Mn site, Mn is bonded in a 12-coordinate geometry to two Pr, six Mn, and four Co atoms. There are a spread of Mn–Mn bond distances ranging from 2.28–2.64 Å. There are two shorter (2.39 Å) and two longer (2.63 Å) Mn–Co bond lengths. In the second Mn site, Mn is bonded in a 12-coordinate geometry to two Pr, six Mn, and four Co atoms. There are a spread of Mn–Mn bond distances ranging from 2.28–2.64 Å. There are two shorter (2.39 Å) and two longer (2.63 Å) Mn–Co bond lengths. In the third Mn site, Mn is bonded in a 12-coordinate geometry to two Pr, six Mn, and four Co atoms. There are two shorter (2.57 Å) and two longer (2.65 Å) Mn–Mn bond lengths. There are two shorter (2.39 Å) and two longer (2.63 Å) Mn–Co bond lengths. In the fourth Mn site, Mn is bonded in a 12-coordinate geometry to three Pr, six Mn, and three Co atoms. There are one shorter (2.65 Å) and one longer (2.66 Å) Mn–Mn bond lengths. There are two shorter (2.48 Å) and one longer (2.66 Å) Mn–Co bond lengths. In the fifth Mn site, Mn is bonded in a 12-coordinate geometry to three Pr, six Mn, and three Co atoms. There are two shorter (2.48 Å) and one longer (2.65 Å) Mn–Co bond lengths. There are three inequivalent Co sites. In the first Co site, Co is bonded in a 11-coordinate geometry to one Pr, nine Mn, and four Co atoms. There are one shorter (2.34 Å) and three longer (2.64 Å) Co–Co bond lengths. In the second Co site, Co is bonded in a 12-coordinate geometry to two equivalent Pr, eight Mn, and two equivalent Co atoms. In the third Co site, Co is bonded in a 12-coordinate geometry to two equivalent Pr, eight Mn, and two equivalent Co atoms.

36 MATERIALS SCIENCE↗