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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↗

A systematic study of superconductivity in BiPb(Sn)-Sb Sr-Ca-Cu-O systems

Superconducting transition above 160 K has been reported in the Bi-Pb-Sb-Sr-Ca-Cu-O system. Results of a systematic study emphasizing the correlations between the type and amount of dopant, and superconducting transition is presented. The effect of Sn (instead of Pb) substitution is also highlighted.

Akbar, Sheikh A.↗