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Materials Data on La8(BiPb)3 by Materials Project

La8(PbBi)3 crystallizes in the monoclinic C2 space group. The structure is three-dimensional. there are four inequivalent La sites. In the first La site, La is bonded in a 6-coordinate geometry to three Pb and three Bi atoms. There are a spread of La–Pb bond distances ranging from 3.30–3.55 Å. There are a spread of La–Bi bond distances ranging from 3.31–3.54 Å. In the second La site, La is bonded in a 6-coordinate geometry to three Pb and three Bi atoms. There are a spread of La–Pb bond distances ranging from 3.29–3.55 Å. There are a spread of La–Bi bond distances ranging from 3.30–3.56 Å. In the third La site, La is bonded in a 6-coordinate geometry to three Pb and three Bi atoms. There are a spread of La–Pb bond distances ranging from 3.31–3.55 Å. There are a spread of La–Bi bond distances ranging from 3.30–3.54 Å. In the fourth La site, La is bonded in a 6-coordinate geometry to three Pb and three Bi atoms. There are a spread of La–Pb bond distances ranging from 3.29–3.56 Å. There are a spread of La–Bi bond distances ranging from 3.32–3.56 Å. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded to eight La atoms to form distorted PbLa8 hexagonal bipyramids that share corners with four equivalent PbLa8 hexagonal bipyramids, corners with four equivalent BiLa8 hexagonal bipyramids, edges with four equivalent BiLa8 hexagonal bipyramids, faces with four equivalent PbLa8 hexagonal bipyramids, and faces with four equivalent BiLa8 hexagonal bipyramids. In the second Pb site, Pb is bonded to eight La atoms to form distorted PbLa8 hexagonal bipyramids that share corners with two equivalent PbLa8 hexagonal bipyramids, corners with six BiLa8 hexagonal bipyramids, edges with four equivalent PbLa8 hexagonal bipyramids, faces with two equivalent PbLa8 hexagonal bipyramids, and faces with six BiLa8 hexagonal bipyramids. There are two inequivalent Bi sites. In the first Bi site, Bi is bonded to eight La atoms to form distorted BiLa8 hexagonal bipyramids that share corners with two equivalent BiLa8 hexagonal bipyramids, corners with six PbLa8 hexagonal bipyramids, edges with four equivalent BiLa8 hexagonal bipyramids, faces with two equivalent BiLa8 hexagonal bipyramids, and faces with six PbLa8 hexagonal bipyramids. In the second Bi site, Bi is bonded to eight La atoms to form distorted BiLa8 hexagonal bipyramids that share corners with four equivalent PbLa8 hexagonal bipyramids, corners with four equivalent BiLa8 hexagonal bipyramids, edges with four equivalent PbLa8 hexagonal bipyramids, faces with four equivalent PbLa8 hexagonal bipyramids, and faces with four equivalent BiLa8 hexagonal bipyramids.

36 MATERIALS SCIENCE↗

Materials Data on BiPb by Materials Project

Bi(Pb) is beta-derived structured and crystallizes in the hexagonal P-6m2 space group. The structure is three-dimensional. Pb is bonded to six equivalent Pb and six equivalent Bi atoms to form PbBi6Pb6 cuboctahedra that share corners with eighteen equivalent PbBi6Pb6 cuboctahedra, edges with six equivalent PbBi6Pb6 cuboctahedra, edges with twelve equivalent BiBi6Pb6 cuboctahedra, faces with eight equivalent PbBi6Pb6 cuboctahedra, and faces with twelve equivalent BiBi6Pb6 cuboctahedra. All Pb–Pb bond lengths are 3.52 Å. All Pb–Bi bond lengths are 3.61 Å. Bi is bonded to six equivalent Pb and six equivalent Bi atoms to form BiBi6Pb6 cuboctahedra that share corners with eighteen equivalent BiBi6Pb6 cuboctahedra, edges with six equivalent BiBi6Pb6 cuboctahedra, edges with twelve equivalent PbBi6Pb6 cuboctahedra, faces with eight equivalent BiBi6Pb6 cuboctahedra, and faces with twelve equivalent PbBi6Pb6 cuboctahedra. All Bi–Bi bond lengths are 3.52 Å.

36 MATERIALS SCIENCE↗