SEARCH · Engineering Papers

Results for “B-Mo-Ta”

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.

SourceResearch connectionFrom yearThrough year

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

2 records

All sources NASA NTRS DOE OSTI

DOE OSTI2020

Materials Data on Ta(BMo)2 by Materials Project

Ta(MoB)2 crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. Ta is bonded to eight equivalent Mo and four equivalent B atoms to form a mixture of distorted corner and face-sharing TaB4Mo8 cuboctahedra. All Ta–Mo bond lengths are 2.77 Å. All Ta–B bond lengths are 2.49 Å. Mo is bonded in a 10-coordinate geometry to four equivalent Ta and six equivalent B atoms. There are four shorter (2.39 Å) and two longer (2.47 Å) Mo–B bond lengths. B is bonded in a 9-coordinate geometry to two equivalent Ta, six equivalent Mo, and one B atom. The B–B bond length is 1.89 Å.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on TaB2Mo by Materials Project

TaMoB2 crystallizes in the orthorhombic Amm2 space group. The structure is three-dimensional. Ta3+ is bonded in a 7-coordinate geometry to seven B3- atoms. There are a spread of Ta–B bond distances ranging from 2.38–2.54 Å. Mo3+ is bonded in a 7-coordinate geometry to seven B3- atoms. There are a spread of Mo–B bond distances ranging from 2.37–2.56 Å. There are two inequivalent B3- sites. In the first B3- site, B3- is bonded in a 9-coordinate geometry to four equivalent Ta3+, three equivalent Mo3+, and two equivalent B3- atoms. Both B–B bond lengths are 1.86 Å. In the second B3- site, B3- is bonded in a 9-coordinate geometry to three equivalent Ta3+, four equivalent Mo3+, and two equivalent B3- atoms.

36 MATERIALS SCIENCE↗