Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Np”

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.

At least 415 records · Page 23
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Np3Se4 by Materials Project

Np3Se4 crystallizes in the cubic I-43d space group. The structure is three-dimensional. Np is bonded to eight equivalent Se atoms to form a mixture of distorted edge, face, and corner-sharing NpSe8 hexagonal bipyramids. There are four shorter (2.85 Å) and four longer (2.97 Å) Np–Se bond lengths. Se is bonded to six equivalent Np atoms to form a mixture of distorted edge, face, and corner-sharing SeNp6 octahedra. The corner-sharing octahedra tilt angles range from 16–50°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpSe by Materials Project

NpSe is Halite, Rock Salt structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Np is bonded to six equivalent Se atoms to form a mixture of edge and corner-sharing NpSe6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Np–Se bond lengths are 2.90 Å. Se is bonded to six equivalent Np atoms to form a mixture of edge and corner-sharing SeNp6 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpO by Materials Project

NpO is Halite, Rock Salt structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Np is bonded to six equivalent O atoms to form a mixture of edge and corner-sharing NpO6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Np–O bond lengths are 2.43 Å. O is bonded to six equivalent Np atoms to form a mixture of edge and corner-sharing ONp6 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpTe by Materials Project

NpTe is Halite, Rock Salt structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Np is bonded to six equivalent Te atoms to form a mixture of corner and edge-sharing NpTe6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Np–Te bond lengths are 3.11 Å. Te is bonded to six equivalent Np atoms to form a mixture of corner and edge-sharing TeNp6 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpGaRh2 by Materials Project

NpRh2Ga is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Np is bonded in a body-centered cubic geometry to eight equivalent Rh atoms. All Np–Rh bond lengths are 2.80 Å. Rh is bonded in a body-centered cubic geometry to four equivalent Np and four equivalent Ga atoms. All Rh–Ga bond lengths are 2.80 Å. Ga is bonded in a distorted body-centered cubic geometry to eight equivalent Rh atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpCdPt2 by Materials Project

NpPt2Cd is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Np is bonded in a body-centered cubic geometry to eight equivalent Pt atoms. All Np–Pt bond lengths are 2.93 Å. Pt is bonded in a body-centered cubic geometry to four equivalent Np and four equivalent Cd atoms. All Pt–Cd bond lengths are 2.93 Å. Cd is bonded in a body-centered cubic geometry to eight equivalent Pt atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpSnRh2 by Materials Project

NpRh2Sn is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Np is bonded in a body-centered cubic geometry to eight equivalent Rh atoms. All Np–Rh bond lengths are 2.88 Å. Rh is bonded in a body-centered cubic geometry to four equivalent Np and four equivalent Sn atoms. All Rh–Sn bond lengths are 2.88 Å. Sn is bonded in a distorted body-centered cubic geometry to eight equivalent Rh atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TmNpRu2 by Materials Project

NpTmRu2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Np is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Np–Ru bond lengths are 2.92 Å. Tm is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Tm–Ru bond lengths are 2.92 Å. Ru is bonded in a body-centered cubic geometry to four equivalent Np and four equivalent Tm atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpSn3 by Materials Project

NpSn3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Np is bonded to twelve equivalent Sn atoms to form NpSn12 cuboctahedra that share corners with twelve equivalent NpSn12 cuboctahedra, edges with twenty-four equivalent SnNp4Sn8 cuboctahedra, faces with six equivalent NpSn12 cuboctahedra, and faces with twelve equivalent SnNp4Sn8 cuboctahedra. All Np–Sn bond lengths are 3.30 Å. Sn is bonded to four equivalent Np and eight equivalent Sn atoms to form distorted SnNp4Sn8 cuboctahedra that share corners with twelve equivalent SnNp4Sn8 cuboctahedra, edges with eight equivalent NpSn12 cuboctahedra, edges with sixteen equivalent SnNp4Sn8 cuboctahedra, faces with four equivalent NpSn12 cuboctahedra, and faces with fourteen equivalent SnNp4Sn8 cuboctahedra. All Sn–Sn bond lengths are 3.30 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sm3Np by Materials Project

NpSm3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Np is bonded to twelve equivalent Sm atoms to form NpSm12 cuboctahedra that share corners with twelve equivalent NpSm12 cuboctahedra, edges with twenty-four equivalent SmSm8Np4 cuboctahedra, faces with six equivalent NpSm12 cuboctahedra, and faces with twelve equivalent SmSm8Np4 cuboctahedra. All Np–Sm bond lengths are 3.56 Å. Sm is bonded to four equivalent Np and eight equivalent Sm atoms to form SmSm8Np4 cuboctahedra that share corners with twelve equivalent SmSm8Np4 cuboctahedra, edges with eight equivalent NpSm12 cuboctahedra, edges with sixteen equivalent SmSm8Np4 cuboctahedra, faces with four equivalent NpSm12 cuboctahedra, and faces with fourteen equivalent SmSm8Np4 cuboctahedra. All Sm–Sm bond lengths are 3.56 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpMn3 by Materials Project

NpMn3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Np is bonded to twelve equivalent Mn atoms to form NpMn12 cuboctahedra that share corners with twelve equivalent NpMn12 cuboctahedra, edges with twenty-four equivalent MnNp4Mn8 cuboctahedra, faces with six equivalent NpMn12 cuboctahedra, and faces with twelve equivalent MnNp4Mn8 cuboctahedra. All Np–Mn bond lengths are 2.63 Å. Mn is bonded to four equivalent Np and eight equivalent Mn atoms to form MnNp4Mn8 cuboctahedra that share corners with twelve equivalent MnNp4Mn8 cuboctahedra, edges with eight equivalent NpMn12 cuboctahedra, edges with sixteen equivalent MnNp4Mn8 cuboctahedra, faces with four equivalent NpMn12 cuboctahedra, and faces with fourteen equivalent MnNp4Mn8 cuboctahedra. All Mn–Mn bond lengths are 2.63 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpAl3 by Materials Project

NpAl3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Np is bonded to twelve equivalent Al atoms to form a mixture of corner and face-sharing NpAl12 cuboctahedra. There are six shorter (3.04 Å) and six longer (3.09 Å) Np–Al bond lengths. Al is bonded in a 10-coordinate geometry to four equivalent Np and six equivalent Al atoms. There are two shorter (2.85 Å) and four longer (2.87 Å) Al–Al bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpPa3 by Materials Project

NpPa3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Np is bonded to twelve equivalent Pa atoms to form NpPa12 cuboctahedra that share corners with six equivalent NpPa12 cuboctahedra, corners with twelve equivalent PaNp4Pa8 cuboctahedra, edges with eighteen equivalent PaNp4Pa8 cuboctahedra, faces with eight equivalent NpPa12 cuboctahedra, and faces with twelve equivalent PaNp4Pa8 cuboctahedra. There are six shorter (3.09 Å) and six longer (3.32 Å) Np–Pa bond lengths. Pa is bonded to four equivalent Np and eight equivalent Pa atoms to form distorted PaNp4Pa8 cuboctahedra that share corners with four equivalent NpPa12 cuboctahedra, corners with fourteen equivalent PaNp4Pa8 cuboctahedra, edges with six equivalent NpPa12 cuboctahedra, edges with twelve equivalent PaNp4Pa8 cuboctahedra, faces with four equivalent NpPa12 cuboctahedra, and faces with sixteen equivalent PaNp4Pa8 cuboctahedra. There are a spread of Pa–Pa bond distances ranging from 3.07–3.33 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpInRh2 by Materials Project

NpRh2In is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Np is bonded in a body-centered cubic geometry to eight equivalent Rh atoms. All Np–Rh bond lengths are 2.88 Å. Rh is bonded in a body-centered cubic geometry to four equivalent Np and four equivalent In atoms. All Rh–In bond lengths are 2.88 Å. In is bonded in a distorted body-centered cubic geometry to eight equivalent Rh atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpSnAu2 by Materials Project

NpAu2Sn is Heusler structured and crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. Np is bonded in a body-centered cubic geometry to eight equivalent Au atoms. All Np–Au bond lengths are 3.08 Å. Au is bonded in a body-centered cubic geometry to four equivalent Np and four equivalent Sn atoms. All Au–Sn bond lengths are 3.08 Å. Sn is bonded in a distorted body-centered cubic geometry to eight equivalent Au atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpCdAu2 by Materials Project

NpAu2Cd is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Np is bonded in a body-centered cubic geometry to eight equivalent Au atoms. All Np–Au bond lengths are 3.07 Å. Au is bonded in a body-centered cubic geometry to four equivalent Np and four equivalent Cd atoms. All Au–Cd bond lengths are 3.07 Å. Cd is bonded in a body-centered cubic geometry to eight equivalent Au atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiNpIr2 by Materials Project

LiNpIr2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Li is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Li–Ir bond lengths are 2.78 Å. Np is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Np–Ir bond lengths are 2.78 Å. Ir is bonded in a body-centered cubic geometry to four equivalent Li and four equivalent Np atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sm3Np by Materials Project

NpSm3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Np is bonded to twelve equivalent Sm atoms to form NpSm12 cuboctahedra that share corners with six equivalent NpSm12 cuboctahedra, corners with twelve equivalent SmSm8Np4 cuboctahedra, edges with eighteen equivalent SmSm8Np4 cuboctahedra, faces with eight equivalent NpSm12 cuboctahedra, and faces with twelve equivalent SmSm8Np4 cuboctahedra. There are six shorter (3.52 Å) and six longer (3.60 Å) Np–Sm bond lengths. Sm is bonded to four equivalent Np and eight equivalent Sm atoms to form SmSm8Np4 cuboctahedra that share corners with four equivalent NpSm12 cuboctahedra, corners with fourteen equivalent SmSm8Np4 cuboctahedra, edges with six equivalent NpSm12 cuboctahedra, edges with twelve equivalent SmSm8Np4 cuboctahedra, faces with four equivalent NpSm12 cuboctahedra, and faces with sixteen equivalent SmSm8Np4 cuboctahedra. There are a spread of Sm–Sm bond distances ranging from 3.54–3.65 Å.

36 MATERIALS SCIENCE↗