Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Pb”

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 1,297 records · Page 72

Materials Data on Ho5Pb3 by Materials Project

Ho5Pb3 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Ho sites. In the first Ho site, Ho is bonded in a 6-coordinate geometry to six equivalent Pb atoms. All Ho–Pb bond lengths are 3.23 Å. In the second Ho site, Ho is bonded in a 5-coordinate geometry to five equivalent Pb atoms. There are a spread of Ho–Pb bond distances ranging from 3.10–3.60 Å. Pb is bonded in a 9-coordinate geometry to nine Ho atoms.

36 MATERIALS SCIENCE↗

Materials Data on Li2MgPb by Materials Project

Li2MgPb 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 four equivalent Mg and four equivalent Pb atoms. All Li–Mg bond lengths are 2.96 Å. All Li–Pb bond lengths are 2.96 Å. Mg is bonded in a distorted body-centered cubic geometry to eight equivalent Li and six equivalent Pb atoms. All Mg–Pb bond lengths are 3.42 Å. Pb is bonded in a body-centered cubic geometry to eight equivalent Li and six equivalent Mg atoms.

36 MATERIALS SCIENCE↗

Materials Data on Li3Pb by Materials Project

Li3Pb is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Li sites. In the first Li site, Li is bonded to four equivalent Li and four equivalent Pb atoms to form a mixture of distorted edge, face, and corner-sharing LiLi4Pb4 tetrahedra. All Li–Li bond lengths are 2.90 Å. All Li–Pb bond lengths are 2.90 Å. In the second Li site, Li is bonded in a 12-coordinate geometry to eight equivalent Li and six equivalent Pb atoms. There are four shorter (3.33 Å) and two longer (3.38 Å) Li–Pb bond lengths. Pb is bonded in a distorted body-centered cubic geometry to fourteen Li atoms.

36 MATERIALS SCIENCE↗

Materials Data on LiPd2Pb by Materials Project

LiPd2Pb is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Li is bonded in a distorted body-centered cubic geometry to eight equivalent Pd and six equivalent Pb atoms. All Li–Pd bond lengths are 2.81 Å. All Li–Pb bond lengths are 3.25 Å. Pd is bonded in a distorted body-centered cubic geometry to four equivalent Li and four equivalent Pb atoms. All Pd–Pb bond lengths are 2.81 Å. Pb is bonded in a 8-coordinate geometry to six equivalent Li and eight equivalent Pd atoms.

36 MATERIALS SCIENCE↗

Materials Data on Sr2Pb by Materials Project

Sr2Pb is Cotunnite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Sr sites. In the first Sr site, Sr is bonded in a 5-coordinate geometry to five equivalent Pb atoms. There are a spread of Sr–Pb bond distances ranging from 3.54–4.02 Å. In the second Sr site, Sr is bonded to four equivalent Pb atoms to form a mixture of edge and corner-sharing SrPb4 tetrahedra. There are a spread of Sr–Pb bond distances ranging from 3.38–3.48 Å. Pb is bonded in a 9-coordinate geometry to nine Sr atoms.

36 MATERIALS SCIENCE↗

Materials Data on Tb2Pd2Pb by Materials Project

Tb2Pd2Pb crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. Tb is bonded in a 6-coordinate geometry to six equivalent Pd and four equivalent Pb atoms. There are two shorter (2.92 Å) and four longer (3.00 Å) Tb–Pd bond lengths. All Tb–Pb bond lengths are 3.47 Å. Pd is bonded in a 6-coordinate geometry to six equivalent Tb and two equivalent Pb atoms. Both Pd–Pb bond lengths are 3.15 Å. Pb is bonded to eight equivalent Tb and four equivalent Pd atoms to form a mixture of corner and face-sharing PbTb8Pd4 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on Dy2Pd2Pb by Materials Project

Dy2Pd2Pb crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. Dy is bonded in a 6-coordinate geometry to six equivalent Pd and four equivalent Pb atoms. There are two shorter (2.91 Å) and four longer (2.99 Å) Dy–Pd bond lengths. All Dy–Pb bond lengths are 3.46 Å. Pd is bonded in a 6-coordinate geometry to six equivalent Dy, one Pd, and two equivalent Pb atoms. The Pd–Pd bond length is 2.83 Å. Both Pd–Pb bond lengths are 3.15 Å. Pb is bonded to eight equivalent Dy and four equivalent Pd atoms to form a mixture of corner and face-sharing PbDy8Pd4 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on Ho2Pd2Pb by Materials Project

Ho2Pd2Pb crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. Ho is bonded in a 6-coordinate geometry to six equivalent Pd and four equivalent Pb atoms. There are two shorter (2.91 Å) and four longer (2.97 Å) Ho–Pd bond lengths. All Ho–Pb bond lengths are 3.45 Å. Pd is bonded in a 6-coordinate geometry to six equivalent Ho, one Pd, and two equivalent Pb atoms. The Pd–Pd bond length is 2.82 Å. Both Pd–Pb bond lengths are 3.14 Å. Pb is bonded to eight equivalent Ho and four equivalent Pd atoms to form a mixture of corner and face-sharing PbHo8Pd4 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on Er2Pd2Pb by Materials Project

Er2Pd2Pb crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. Er is bonded in a 6-coordinate geometry to six equivalent Pd and four equivalent Pb atoms. There are two shorter (2.90 Å) and four longer (2.96 Å) Er–Pd bond lengths. All Er–Pb bond lengths are 3.44 Å. Pd is bonded in a 6-coordinate geometry to six equivalent Er and two equivalent Pb atoms. Both Pd–Pb bond lengths are 3.13 Å. Pb is bonded to eight equivalent Er and four equivalent Pd atoms to form a mixture of distorted corner and face-sharing PbEr8Pd4 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on Lu2Pd2Pb by Materials Project

Lu2Pd2Pb crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. Lu is bonded in a 6-coordinate geometry to six equivalent Pd and four equivalent Pb atoms. There are two shorter (2.88 Å) and four longer (2.93 Å) Lu–Pd bond lengths. All Lu–Pb bond lengths are 3.42 Å. Pd is bonded in a 6-coordinate geometry to six equivalent Lu and two equivalent Pb atoms. Both Pd–Pb bond lengths are 3.10 Å. Pb is bonded to eight equivalent Lu and four equivalent Pd atoms to form a mixture of distorted corner and face-sharing PbLu8Pd4 cuboctahedra.

36 MATERIALS SCIENCE↗

Materials Data on La5Pb3I by Materials Project

La5Pb3I crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent La sites. In the first La site, La is bonded in a 7-coordinate geometry to five equivalent Pb and two equivalent I atoms. There are a spread of La–Pb bond distances ranging from 3.35–3.76 Å. Both La–I bond lengths are 3.26 Å. In the second La site, La is bonded in a 6-coordinate geometry to six equivalent Pb atoms. All La–Pb bond lengths are 3.56 Å. Pb is bonded in a 9-coordinate geometry to nine La atoms. I is bonded to six equivalent La atoms to form face-sharing ILa6 octahedra.

36 MATERIALS SCIENCE↗

Materials Data on TbAgPb by Materials Project

TbAgPb crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Tb is bonded in a 12-coordinate geometry to six equivalent Ag and six equivalent Pb atoms. There are three shorter (3.12 Å) and three longer (3.67 Å) Tb–Ag bond lengths. There are three shorter (3.25 Å) and three longer (3.50 Å) Tb–Pb bond lengths. Ag is bonded in a 10-coordinate geometry to six equivalent Tb and four equivalent Pb atoms. There are three shorter (2.88 Å) and one longer (3.06 Å) Ag–Pb bond lengths. Pb is bonded in a 10-coordinate geometry to six equivalent Tb and four equivalent Ag atoms.

36 MATERIALS SCIENCE↗

Materials Data on HoAgPb by Materials Project

HoAgPb crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Ho is bonded in a 12-coordinate geometry to six equivalent Ag and six equivalent Pb atoms. There are three shorter (3.10 Å) and three longer (3.67 Å) Ho–Ag bond lengths. There are three shorter (3.24 Å) and three longer (3.48 Å) Ho–Pb bond lengths. Ag is bonded in a 10-coordinate geometry to six equivalent Ho and four equivalent Pb atoms. There are three shorter (2.88 Å) and one longer (3.02 Å) Ag–Pb bond lengths. Pb is bonded in a 10-coordinate geometry to six equivalent Ho and four equivalent Ag atoms.

36 MATERIALS SCIENCE↗

Materials Data on Ho2Ni2Pb by Materials Project

Ho2Ni2Pb crystallizes in the orthorhombic Cmmm space group. The structure is three-dimensional. Ho is bonded in a 10-coordinate geometry to six equivalent Ni and four equivalent Pb atoms. There are four shorter (2.83 Å) and two longer (2.93 Å) Ho–Ni bond lengths. All Ho–Pb bond lengths are 3.36 Å. Ni is bonded in a 9-coordinate geometry to six equivalent Ho, two equivalent Ni, and one Pb atom. Both Ni–Ni bond lengths are 2.41 Å. The Ni–Pb bond length is 2.87 Å. Pb is bonded in a distorted q6 geometry to eight equivalent Ho and two equivalent Ni atoms.

36 MATERIALS SCIENCE↗

Materials Data on MnRh2Pb by Materials Project

Rh2MnPb is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Mn is bonded in a distorted body-centered cubic geometry to eight equivalent Rh and six equivalent Pb atoms. All Mn–Rh bond lengths are 2.78 Å. All Mn–Pb bond lengths are 3.21 Å. Rh is bonded in a distorted body-centered cubic geometry to four equivalent Mn and four equivalent Pb atoms. All Rh–Pb bond lengths are 2.78 Å. Pb is bonded in a 8-coordinate geometry to six equivalent Mn and eight equivalent Rh atoms.

36 MATERIALS SCIENCE↗

Materials Data on Sc5Pb3 by Materials Project

Sc5Pb3 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. there are two inequivalent Sc sites. In the first Sc site, Sc is bonded in a 6-coordinate geometry to six equivalent Pb atoms. All Sc–Pb bond lengths are 3.06 Å. In the second Sc site, Sc is bonded in a 5-coordinate geometry to five equivalent Pb atoms. There are a spread of Sc–Pb bond distances ranging from 2.94–3.38 Å. Pb is bonded in a 9-coordinate geometry to nine Sc atoms.

36 MATERIALS SCIENCE↗

Materials Data on BaZnPb by Materials Project

BaZnPb crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Ba is bonded to six equivalent Zn and six equivalent Pb atoms to form a mixture of edge and face-sharing BaZn6Pb6 cuboctahedra. All Ba–Zn bond lengths are 3.75 Å. All Ba–Pb bond lengths are 3.75 Å. Zn is bonded in a distorted trigonal planar geometry to six equivalent Ba and three equivalent Pb atoms. All Zn–Pb bond lengths are 2.82 Å. Pb is bonded in a distorted trigonal planar geometry to six equivalent Ba and three equivalent Zn atoms.

36 MATERIALS SCIENCE↗

Materials Data on DyAgPb by Materials Project

DyAgPb crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Dy is bonded in a 12-coordinate geometry to six equivalent Ag and six equivalent Pb atoms. There are three shorter (3.10 Å) and three longer (3.68 Å) Dy–Ag bond lengths. There are three shorter (3.26 Å) and three longer (3.47 Å) Dy–Pb bond lengths. Ag is bonded in a 10-coordinate geometry to six equivalent Dy and four equivalent Pb atoms. There are three shorter (2.88 Å) and one longer (3.04 Å) Ag–Pb bond lengths. Pb is bonded in a 10-coordinate geometry to six equivalent Dy and four equivalent Ag atoms.

36 MATERIALS SCIENCE↗