Search NASA⌕ Search

SEARCH · Search NASA

Results for “Dy-Pm”

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.

3 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on PmDy3 by Materials Project

Dy3Pm is alpha La-derived structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Dy sites. In the first Dy site, Dy is bonded to eight Dy and four equivalent Pm atoms to form DyPm4Dy8 cuboctahedra that share corners with twelve equivalent DyPm4Dy8 cuboctahedra, edges with eight equivalent PmDy12 cuboctahedra, edges with sixteen DyPm4Dy8 cuboctahedra, faces with four equivalent PmDy12 cuboctahedra, and faces with fourteen DyPm4Dy8 cuboctahedra. All Dy–Dy bond lengths are 3.58 Å. All Dy–Pm bond lengths are 3.58 Å. In the second Dy site, Dy is bonded to eight equivalent Dy and four equivalent Pm atoms to form DyPm4Dy8 cuboctahedra that share corners with four equivalent DyPm4Dy8 cuboctahedra, corners with eight equivalent PmDy12 cuboctahedra, edges with twenty-four DyPm4Dy8 cuboctahedra, faces with six equivalent PmDy12 cuboctahedra, and faces with twelve DyPm4Dy8 cuboctahedra. All Dy–Pm bond lengths are 3.58 Å. Pm is bonded to twelve Dy atoms to form PmDy12 cuboctahedra that share corners with four equivalent PmDy12 cuboctahedra, corners with eight equivalent DyPm4Dy8 cuboctahedra, edges with eight equivalent PmDy12 cuboctahedra, edges with sixteen equivalent DyPm4Dy8 cuboctahedra, faces with four equivalent PmDy12 cuboctahedra, and faces with fourteen DyPm4Dy8 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pm3Dy by Materials Project

DyPm3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Dy is bonded to twelve equivalent Pm atoms to form DyPm12 cuboctahedra that share corners with twelve equivalent DyPm12 cuboctahedra, edges with twenty-four equivalent PmPm8Dy4 cuboctahedra, faces with six equivalent DyPm12 cuboctahedra, and faces with twelve equivalent PmPm8Dy4 cuboctahedra. All Dy–Pm bond lengths are 3.63 Å. Pm is bonded to four equivalent Dy and eight equivalent Pm atoms to form PmPm8Dy4 cuboctahedra that share corners with twelve equivalent PmPm8Dy4 cuboctahedra, edges with eight equivalent DyPm12 cuboctahedra, edges with sixteen equivalent PmPm8Dy4 cuboctahedra, faces with four equivalent DyPm12 cuboctahedra, and faces with fourteen equivalent PmPm8Dy4 cuboctahedra. All Pm–Pm bond lengths are 3.63 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PmDy3 by Materials Project

Dy3Pm is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are two inequivalent Dy sites. In the first Dy site, Dy is bonded to eight Dy and four equivalent Pm atoms to form DyPm4Dy8 cuboctahedra that share corners with four equivalent PmDy12 cuboctahedra, corners with fourteen DyPm4Dy8 cuboctahedra, edges with six equivalent PmDy12 cuboctahedra, edges with twelve DyPm4Dy8 cuboctahedra, faces with four equivalent PmDy12 cuboctahedra, and faces with sixteen DyPm4Dy8 cuboctahedra. There are a spread of Dy–Dy bond distances ranging from 3.55–3.65 Å. There are two shorter (3.57 Å) and two longer (3.62 Å) Dy–Pm bond lengths. In the second Dy site, Dy is bonded to eight equivalent Dy and four equivalent Pm atoms to form DyPm4Dy8 cuboctahedra that share corners with four equivalent PmDy12 cuboctahedra, corners with fourteen DyPm4Dy8 cuboctahedra, edges with six equivalent PmDy12 cuboctahedra, edges with twelve equivalent DyPm4Dy8 cuboctahedra, faces with four equivalent PmDy12 cuboctahedra, and faces with sixteen DyPm4Dy8 cuboctahedra. There are two shorter (3.57 Å) and two longer (3.62 Å) Dy–Pm bond lengths. Pm is bonded to twelve Dy atoms to form PmDy12 cuboctahedra that share corners with six equivalent PmDy12 cuboctahedra, corners with twelve equivalent DyPm4Dy8 cuboctahedra, edges with eighteen DyPm4Dy8 cuboctahedra, faces with eight equivalent PmDy12 cuboctahedra, and faces with twelve DyPm4Dy8 cuboctahedra.

36 MATERIALS SCIENCE↗