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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.

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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Co3B by Materials Project

Co3B is Cementite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Co1+ sites. In the first Co1+ site, Co1+ is bonded in a 3-coordinate geometry to three equivalent B3- atoms. There are two shorter (2.05 Å) and one longer (2.27 Å) Co–B bond lengths. In the second Co1+ site, Co1+ is bonded in a distorted bent 150 degrees geometry to two equivalent B3- atoms. There are one shorter (2.02 Å) and one longer (2.03 Å) Co–B bond lengths. B3- is bonded in a 6-coordinate geometry to eight Co1+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CoB by Materials Project

CoB crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Co3+ is bonded in a 7-coordinate geometry to seven equivalent B3- atoms. There are a spread of Co–B bond distances ranging from 2.08–2.15 Å. B3- is bonded in a 9-coordinate geometry to seven equivalent Co3+ and two equivalent B3- atoms. Both B–B bond lengths are 1.84 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Co2B by Materials Project

Co2B is Khatyrkite structured and crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. Co+1.50+ is bonded in a 4-coordinate geometry to four equivalent B3- atoms. All Co–B bond lengths are 2.13 Å. B3- is bonded in a 10-coordinate geometry to eight equivalent Co+1.50+ and two equivalent B3- atoms. Both B–B bond lengths are 2.13 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Co23B6 by Materials Project

Co23B6 crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. there are four inequivalent Co sites. In the first Co site, Co is bonded in a cuboctahedral geometry to twelve equivalent Co atoms. All Co–Co bond lengths are 2.49 Å. In the second Co site, Co is bonded in a tetrahedral geometry to four equivalent Co atoms. All Co–Co bond lengths are 2.35 Å. In the third Co site, Co is bonded in a 3-coordinate geometry to one Co and three equivalent B atoms. All Co–B bond lengths are 2.07 Å. In the fourth Co site, Co is bonded in a distorted bent 150 degrees geometry to one Co and two equivalent B atoms. Both Co–B bond lengths are 2.09 Å. B is bonded in a 8-coordinate geometry to eight Co atoms.

36 MATERIALS SCIENCE↗