Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Pa”

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

Materials Data on DyPaRu2 by Materials Project

PaDyRu2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Pa–Ru bond lengths are 2.96 Å. Dy is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Dy–Ru bond lengths are 2.96 Å. Ru is bonded in a body-centered cubic geometry to four equivalent Pa and four equivalent Dy atoms.

36 MATERIALS SCIENCE↗

Materials Data on ScPaRu2 by Materials Project

PaScRu2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Pa–Ru bond lengths are 2.89 Å. Sc is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Sc–Ru bond lengths are 2.89 Å. Ru is bonded in a body-centered cubic geometry to four equivalent Pa and four equivalent Sc atoms.

36 MATERIALS SCIENCE↗

Materials Data on PaAl3 by Materials Project

PaAl3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Pa is bonded to twelve equivalent Al atoms to form PaAl12 cuboctahedra that share corners with twelve equivalent PaAl12 cuboctahedra, edges with twenty-four equivalent AlPa4Al8 cuboctahedra, faces with six equivalent PaAl12 cuboctahedra, and faces with twelve equivalent AlPa4Al8 cuboctahedra. All Pa–Al bond lengths are 3.05 Å. Al is bonded to four equivalent Pa and eight equivalent Al atoms to form AlPa4Al8 cuboctahedra that share corners with twelve equivalent AlPa4Al8 cuboctahedra, edges with eight equivalent PaAl12 cuboctahedra, edges with sixteen equivalent AlPa4Al8 cuboctahedra, faces with four equivalent PaAl12 cuboctahedra, and faces with fourteen equivalent AlPa4Al8 cuboctahedra. All Al–Al bond lengths are 3.05 Å.

36 MATERIALS SCIENCE↗

Materials Data on PaBi3 by Materials Project

PaBi3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Pa is bonded to twelve equivalent Bi atoms to form a mixture of face and corner-sharing PaBi12 cuboctahedra. There are six shorter (3.34 Å) and six longer (3.57 Å) Pa–Bi bond lengths. Bi is bonded in a 12-coordinate geometry to four equivalent Pa and eight equivalent Bi atoms. There are a spread of Bi–Bi bond distances ranging from 3.23–3.63 Å.

36 MATERIALS SCIENCE↗

Materials Data on PaAlCu2 by Materials Project

PaCu2Al is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa is bonded in a body-centered cubic geometry to eight equivalent Cu atoms. All Pa–Cu bond lengths are 2.83 Å. Cu is bonded in a body-centered cubic geometry to four equivalent Pa and four equivalent Al atoms. All Cu–Al bond lengths are 2.83 Å. Al is bonded in a body-centered cubic geometry to eight equivalent Cu atoms.

36 MATERIALS SCIENCE↗

Materials Data on HoPaOs2 by Materials Project

PaHoOs2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa is bonded in a body-centered cubic geometry to eight equivalent Os atoms. All Pa–Os bond lengths are 2.97 Å. Ho is bonded in a body-centered cubic geometry to eight equivalent Os atoms. All Ho–Os bond lengths are 2.97 Å. Os is bonded in a body-centered cubic geometry to four equivalent Pa and four equivalent Ho atoms.

36 MATERIALS SCIENCE↗

Materials Data on MgPaRu2 by Materials Project

MgPaRu2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Mg is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Mg–Ru bond lengths are 2.85 Å. Pa is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Pa–Ru bond lengths are 2.85 Å. Ru is bonded in a body-centered cubic geometry to four equivalent Mg and four equivalent Pa atoms.

36 MATERIALS SCIENCE↗

Materials Data on Pa3H by Materials Project

Pa3H crystallizes in the hexagonal P6_3/mmc space group. The structure is one-dimensional and consists of two Pa3H ribbons oriented in the (0, 0, 1) direction. Pa is bonded in a distorted L-shaped geometry to two equivalent H atoms. Both Pa–H bond lengths are 2.58 Å. H is bonded in a 6-coordinate geometry to six equivalent Pa atoms.

36 MATERIALS SCIENCE↗

Materials Data on Ce3Pa by Materials Project

PaCe3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Pa is bonded to twelve equivalent Ce atoms to form PaCe12 cuboctahedra that share corners with six equivalent PaCe12 cuboctahedra, corners with twelve equivalent CeCe8Pa4 cuboctahedra, edges with eighteen equivalent CeCe8Pa4 cuboctahedra, faces with eight equivalent PaCe12 cuboctahedra, and faces with twelve equivalent CeCe8Pa4 cuboctahedra. There are six shorter (3.25 Å) and six longer (3.38 Å) Pa–Ce bond lengths. Ce is bonded to four equivalent Pa and eight equivalent Ce atoms to form distorted CeCe8Pa4 cuboctahedra that share corners with four equivalent PaCe12 cuboctahedra, corners with fourteen equivalent CeCe8Pa4 cuboctahedra, edges with six equivalent PaCe12 cuboctahedra, edges with twelve equivalent CeCe8Pa4 cuboctahedra, faces with four equivalent PaCe12 cuboctahedra, and faces with sixteen equivalent CeCe8Pa4 cuboctahedra. There are a spread of Ce–Ce bond distances ranging from 3.19–3.42 Å.

36 MATERIALS SCIENCE↗

Materials Data on PaZnNi2 by Materials Project

PaNi2Zn is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa is bonded in a body-centered cubic geometry to eight equivalent Ni atoms. All Pa–Ni bond lengths are 2.72 Å. Ni is bonded in a body-centered cubic geometry to four equivalent Pa and four equivalent Zn atoms. All Ni–Zn bond lengths are 2.72 Å. Zn is bonded in a body-centered cubic geometry to eight equivalent Ni atoms.

36 MATERIALS SCIENCE↗

Materials Data on YbPaIr2 by Materials Project

PaYbIr2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Pa–Ir bond lengths are 2.96 Å. Yb is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Yb–Ir bond lengths are 2.96 Å. Ir is bonded in a body-centered cubic geometry to four equivalent Pa and four equivalent Yb atoms.

36 MATERIALS SCIENCE↗

Materials Data on PaAlFe2 by Materials Project

PaFe2Al is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa is bonded in a body-centered cubic geometry to eight equivalent Fe atoms. All Pa–Fe bond lengths are 2.71 Å. Fe is bonded in a body-centered cubic geometry to four equivalent Pa and four equivalent Al atoms. All Fe–Al bond lengths are 2.71 Å. Al is bonded in a body-centered cubic geometry to eight equivalent Fe atoms.

36 MATERIALS SCIENCE↗

Materials Data on PaNi by Materials Project

PaNi is Halite, Rock Salt structured and crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Pa is bonded to six equivalent Ni atoms to form a mixture of edge and corner-sharing PaNi6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Pa–Ni bond lengths are 2.75 Å. Ni is bonded to six equivalent Pa atoms to form a mixture of edge and corner-sharing NiPa6 octahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗

Materials Data on Th3Pa by Materials Project

PaTh3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Pa is bonded to twelve equivalent Th atoms to form PaTh12 cuboctahedra that share corners with twelve equivalent PaTh12 cuboctahedra, edges with twenty-four equivalent ThTh8Pa4 cuboctahedra, faces with six equivalent PaTh12 cuboctahedra, and faces with twelve equivalent ThTh8Pa4 cuboctahedra. All Pa–Th bond lengths are 3.49 Å. Th is bonded to four equivalent Pa and eight equivalent Th atoms to form ThTh8Pa4 cuboctahedra that share corners with twelve equivalent ThTh8Pa4 cuboctahedra, edges with eight equivalent PaTh12 cuboctahedra, edges with sixteen equivalent ThTh8Pa4 cuboctahedra, faces with four equivalent PaTh12 cuboctahedra, and faces with fourteen equivalent ThTh8Pa4 cuboctahedra. All Th–Th bond lengths are 3.49 Å.

36 MATERIALS SCIENCE↗

Materials Data on PaInRu2 by Materials Project

PaRu2In is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Pa–Ru bond lengths are 2.90 Å. Ru is bonded in a body-centered cubic geometry to four equivalent Pa and four equivalent In atoms. All Ru–In bond lengths are 2.90 Å. In is bonded in a body-centered cubic geometry to eight equivalent Ru atoms.

36 MATERIALS SCIENCE↗

Materials Data on Pr3Pa by Materials Project

PaPr3 is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Pa is bonded to twelve equivalent Pr atoms to form PaPr12 cuboctahedra that share corners with six equivalent PaPr12 cuboctahedra, corners with twelve equivalent PrPr8Pa4 cuboctahedra, edges with eighteen equivalent PrPr8Pa4 cuboctahedra, faces with eight equivalent PaPr12 cuboctahedra, and faces with twelve equivalent PrPr8Pa4 cuboctahedra. There are six shorter (3.58 Å) and six longer (3.59 Å) Pa–Pr bond lengths. Pr is bonded to four equivalent Pa and eight equivalent Pr atoms to form distorted PrPr8Pa4 cuboctahedra that share corners with four equivalent PaPr12 cuboctahedra, corners with fourteen equivalent PrPr8Pa4 cuboctahedra, edges with six equivalent PaPr12 cuboctahedra, edges with twelve equivalent PrPr8Pa4 cuboctahedra, faces with four equivalent PaPr12 cuboctahedra, and faces with sixteen equivalent PrPr8Pa4 cuboctahedra. There are a spread of Pr–Pr bond distances ranging from 3.52–3.67 Å.

36 MATERIALS SCIENCE↗

Materials Data on Yb3Pa by Materials Project

PaYb3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Pa is bonded to twelve equivalent Yb atoms to form PaYb12 cuboctahedra that share corners with twelve equivalent PaYb12 cuboctahedra, edges with twenty-four equivalent YbYb8Pa4 cuboctahedra, faces with six equivalent PaYb12 cuboctahedra, and faces with twelve equivalent YbYb8Pa4 cuboctahedra. All Pa–Yb bond lengths are 3.66 Å. Yb is bonded to four equivalent Pa and eight equivalent Yb atoms to form distorted YbYb8Pa4 cuboctahedra that share corners with twelve equivalent YbYb8Pa4 cuboctahedra, edges with eight equivalent PaYb12 cuboctahedra, edges with sixteen equivalent YbYb8Pa4 cuboctahedra, faces with four equivalent PaYb12 cuboctahedra, and faces with fourteen equivalent YbYb8Pa4 cuboctahedra. All Yb–Yb bond lengths are 3.66 Å.

36 MATERIALS SCIENCE↗

Materials Data on PaGaPt2 by Materials Project

PaPt2Ga is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa is bonded in a body-centered cubic geometry to eight equivalent Pt atoms. All Pa–Pt bond lengths are 2.93 Å. Pt is bonded in a body-centered cubic geometry to four equivalent Pa and four equivalent Ga atoms. All Pt–Ga bond lengths are 2.93 Å. Ga is bonded in a body-centered cubic geometry to eight equivalent Pt atoms.

36 MATERIALS SCIENCE↗