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 379 records · Page 21
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on HoNpRu2 by Materials Project

NpHoRu2 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 2.91 Å. Ho is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Ho–Ru bond lengths are 2.91 Å. Ru is bonded in a body-centered cubic geometry to four equivalent Np and four equivalent Ho atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ba2SrNp by Materials Project

Ba2SrNp is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ba is bonded in a distorted body-centered cubic geometry to four equivalent Sr and four equivalent Np atoms. All Ba–Sr bond lengths are 4.04 Å. All Ba–Np bond lengths are 4.04 Å. Sr is bonded in a body-centered cubic geometry to eight equivalent Ba atoms. Np is bonded in a body-centered cubic geometry to eight equivalent Ba atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpGeO2 by Materials Project

NpGeO2 crystallizes in the tetragonal I4_1/amd space group. The structure is three-dimensional. Np is bonded to six equivalent O atoms to form distorted edge-sharing NpO6 octahedra. There are two shorter (2.29 Å) and four longer (2.34 Å) Np–O bond lengths. Ge is bonded in a square co-planar geometry to four equivalent O atoms. All Ge–O bond lengths are 2.53 Å. O is bonded in a 5-coordinate geometry to three equivalent Np and two equivalent Ge atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Er3Np by Materials Project

NpEr3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Np is bonded to twelve equivalent Er atoms to form NpEr12 cuboctahedra that share corners with twelve equivalent NpEr12 cuboctahedra, edges with twenty-four equivalent ErEr8Np4 cuboctahedra, faces with six equivalent NpEr12 cuboctahedra, and faces with twelve equivalent ErEr8Np4 cuboctahedra. All Np–Er bond lengths are 3.50 Å. Er is bonded to four equivalent Np and eight equivalent Er atoms to form ErEr8Np4 cuboctahedra that share corners with twelve equivalent ErEr8Np4 cuboctahedra, edges with eight equivalent NpEr12 cuboctahedra, edges with sixteen equivalent ErEr8Np4 cuboctahedra, faces with four equivalent NpEr12 cuboctahedra, and faces with fourteen equivalent ErEr8Np4 cuboctahedra. All Er–Er bond lengths are 3.50 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ba3Np by Materials Project

Ba3Np is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. there are two inequivalent Ba sites. In the first Ba site, Ba is bonded to four equivalent Ba and four equivalent Np atoms to form a mixture of distorted edge, face, and corner-sharing BaBa4Np4 tetrahedra. All Ba–Ba bond lengths are 4.17 Å. All Ba–Np bond lengths are 4.17 Å. In the second Ba site, Ba is bonded in a distorted body-centered cubic geometry to eight equivalent Ba atoms. Np is bonded in a body-centered cubic geometry to eight equivalent Ba atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfNpO3 by Materials Project

NpHfO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Np is bonded to twelve equivalent O atoms to form NpO12 cuboctahedra that share corners with twelve equivalent NpO12 cuboctahedra, faces with six equivalent NpO12 cuboctahedra, and faces with eight equivalent HfO6 octahedra. All Np–O bond lengths are 2.91 Å. Hf is bonded to six equivalent O atoms to form HfO6 octahedra that share corners with six equivalent HfO6 octahedra and faces with eight equivalent NpO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Hf–O bond lengths are 2.06 Å. O is bonded in a distorted linear geometry to four equivalent Np and two equivalent Hf atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on DyNpRu2 by Materials Project

NpDyRu2 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 2.93 Å. Dy is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Dy–Ru bond lengths are 2.93 Å. Ru is bonded in a body-centered cubic geometry to four equivalent Np and four equivalent Dy atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pm3Np by Materials Project

NpPm3 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 Pm atoms to form NpPm12 cuboctahedra that share corners with six equivalent NpPm12 cuboctahedra, corners with twelve equivalent PmPm8Np4 cuboctahedra, edges with eighteen equivalent PmPm8Np4 cuboctahedra, faces with eight equivalent NpPm12 cuboctahedra, and faces with twelve equivalent PmPm8Np4 cuboctahedra. There are six shorter (3.52 Å) and six longer (3.58 Å) Np–Pm bond lengths. Pm is bonded to four equivalent Np and eight equivalent Pm atoms to form PmPm8Np4 cuboctahedra that share corners with four equivalent NpPm12 cuboctahedra, corners with fourteen equivalent PmPm8Np4 cuboctahedra, edges with six equivalent NpPm12 cuboctahedra, edges with twelve equivalent PmPm8Np4 cuboctahedra, faces with four equivalent NpPm12 cuboctahedra, and faces with sixteen equivalent PmPm8Np4 cuboctahedra. There are a spread of Pm–Pm bond distances ranging from 3.53–3.64 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LuNpRu2 by Materials Project

NpLuRu2 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 2.89 Å. Lu is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Lu–Ru bond lengths are 2.89 Å. Ru is bonded in a body-centered cubic geometry to four equivalent Np and four equivalent Lu atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Pr3Np by Materials Project

NpPr3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Np is bonded to twelve equivalent Pr atoms to form NpPr12 cuboctahedra that share corners with twelve equivalent NpPr12 cuboctahedra, edges with twenty-four equivalent PrPr8Np4 cuboctahedra, faces with six equivalent NpPr12 cuboctahedra, and faces with twelve equivalent PrPr8Np4 cuboctahedra. All Np–Pr bond lengths are 3.64 Å. Pr is bonded to four equivalent Np and eight equivalent Pr atoms to form PrPr8Np4 cuboctahedra that share corners with twelve equivalent PrPr8Np4 cuboctahedra, edges with eight equivalent NpPr12 cuboctahedra, edges with sixteen equivalent PrPr8Np4 cuboctahedra, faces with four equivalent NpPr12 cuboctahedra, and faces with fourteen equivalent PrPr8Np4 cuboctahedra. All Pr–Pr bond lengths are 3.64 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li3Np by Materials Project

Li3Np crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Li is bonded in a 10-coordinate geometry to six equivalent Li and four equivalent Np atoms. There are two shorter (2.88 Å) and four longer (2.99 Å) Li–Li bond lengths. There are two shorter (3.24 Å) and two longer (3.25 Å) Li–Np bond lengths. Np is bonded to twelve equivalent Li atoms to form a mixture of face and corner-sharing NpLi12 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpSiO3 by Materials Project

NpSiO3 is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Np is bonded to twelve equivalent O atoms to form NpO12 cuboctahedra that share corners with twelve equivalent NpO12 cuboctahedra, faces with six equivalent NpO12 cuboctahedra, and faces with eight equivalent SiO6 octahedra. All Np–O bond lengths are 2.67 Å. Si is bonded to six equivalent O atoms to form SiO6 octahedra that share corners with six equivalent SiO6 octahedra and faces with eight equivalent NpO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Si–O bond lengths are 1.89 Å. O is bonded in a distorted linear geometry to four equivalent Np and two equivalent Si atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpCo3 by Materials Project

NpCo3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Np is bonded to twelve equivalent Co atoms to form NpCo12 cuboctahedra that share corners with twelve equivalent NpCo12 cuboctahedra, edges with twenty-four equivalent CoNp4Co8 cuboctahedra, faces with six equivalent NpCo12 cuboctahedra, and faces with twelve equivalent CoNp4Co8 cuboctahedra. All Np–Co bond lengths are 2.62 Å. Co is bonded to four equivalent Np and eight equivalent Co atoms to form distorted CoNp4Co8 cuboctahedra that share corners with twelve equivalent CoNp4Co8 cuboctahedra, edges with eight equivalent NpCo12 cuboctahedra, edges with sixteen equivalent CoNp4Co8 cuboctahedra, faces with four equivalent NpCo12 cuboctahedra, and faces with fourteen equivalent CoNp4Co8 cuboctahedra. All Co–Co bond lengths are 2.62 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpAg3 by Materials Project

NpAg3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Np is bonded to twelve equivalent Ag atoms to form a mixture of corner and face-sharing NpAg12 cuboctahedra. There are six shorter (3.17 Å) and six longer (3.25 Å) Np–Ag bond lengths. Ag is bonded in a 12-coordinate geometry to four equivalent Np and six equivalent Ag atoms. All Ag–Ag bond lengths are 2.98 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Yb3Np by Materials Project

NpYb3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Np is bonded to twelve equivalent Yb atoms to form NpYb12 cuboctahedra that share corners with twelve equivalent NpYb12 cuboctahedra, edges with twenty-four equivalent YbYb8Np4 cuboctahedra, faces with six equivalent NpYb12 cuboctahedra, and faces with twelve equivalent YbYb8Np4 cuboctahedra. All Np–Yb bond lengths are 3.65 Å. Yb is bonded to four equivalent Np and eight equivalent Yb atoms to form YbYb8Np4 cuboctahedra that share corners with twelve equivalent YbYb8Np4 cuboctahedra, edges with eight equivalent NpYb12 cuboctahedra, edges with sixteen equivalent YbYb8Np4 cuboctahedra, faces with four equivalent NpYb12 cuboctahedra, and faces with fourteen equivalent YbYb8Np4 cuboctahedra. All Yb–Yb bond lengths are 3.65 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NpPt by Materials Project

PtNp crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Np is bonded in a 7-coordinate geometry to seven equivalent Pt atoms. There are a spread of Np–Pt bond distances ranging from 2.86–3.10 Å. Pt is bonded in a 7-coordinate geometry to seven equivalent Np and two equivalent Pt atoms. Both Pt–Pt bond lengths are 2.90 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tb3Np by Materials Project

NpTb3 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 Tb atoms to form NpTb12 cuboctahedra that share corners with six equivalent NpTb12 cuboctahedra, corners with twelve equivalent TbTb8Np4 cuboctahedra, edges with eighteen equivalent TbTb8Np4 cuboctahedra, faces with eight equivalent NpTb12 cuboctahedra, and faces with twelve equivalent TbTb8Np4 cuboctahedra. There are six shorter (3.45 Å) and six longer (3.51 Å) Np–Tb bond lengths. Tb is bonded to four equivalent Np and eight equivalent Tb atoms to form distorted TbTb8Np4 cuboctahedra that share corners with four equivalent NpTb12 cuboctahedra, corners with fourteen equivalent TbTb8Np4 cuboctahedra, edges with six equivalent NpTb12 cuboctahedra, edges with twelve equivalent TbTb8Np4 cuboctahedra, faces with four equivalent NpTb12 cuboctahedra, and faces with sixteen equivalent TbTb8Np4 cuboctahedra. There are a spread of Tb–Tb bond distances ranging from 3.45–3.56 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tb3Np by Materials Project

NpTb3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Np is bonded to twelve equivalent Tb atoms to form NpTb12 cuboctahedra that share corners with twelve equivalent NpTb12 cuboctahedra, edges with twenty-four equivalent TbTb8Np4 cuboctahedra, faces with six equivalent NpTb12 cuboctahedra, and faces with twelve equivalent TbTb8Np4 cuboctahedra. All Np–Tb bond lengths are 3.49 Å. Tb is bonded to four equivalent Np and eight equivalent Tb atoms to form TbTb8Np4 cuboctahedra that share corners with twelve equivalent TbTb8Np4 cuboctahedra, edges with eight equivalent NpTb12 cuboctahedra, edges with sixteen equivalent TbTb8Np4 cuboctahedra, faces with four equivalent NpTb12 cuboctahedra, and faces with fourteen equivalent TbTb8Np4 cuboctahedra. All Tb–Tb bond lengths are 3.49 Å.

36 MATERIALS SCIENCE↗