SEARCH · Search NASA

Results for “O-Tm-V”

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 Tm2V2O7 by Materials Project

Tm2V2O7 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Tm3+ is bonded in a distorted body-centered cubic geometry to eight O2- atoms. There are two shorter (2.17 Å) and six longer (2.44 Å) Tm–O bond lengths. V4+ is bonded to six equivalent O2- atoms to form corner-sharing VO6 octahedra. The corner-sharing octahedral tilt angles are 51°. All V–O bond lengths are 1.96 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Tm3+ atoms to form corner-sharing OTm4 tetrahedra. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Tm3+ and two equivalent V4+ atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on TmVO4 by Materials Project

TmVO4 is Zircon structured and crystallizes in the tetragonal I4_1/amd space group. The structure is three-dimensional. Tm3+ is bonded in a 8-coordinate geometry to eight equivalent O2- atoms. There are four shorter (2.28 Å) and four longer (2.43 Å) Tm–O bond lengths. V5+ is bonded in a tetrahedral geometry to four equivalent O2- atoms. All V–O bond lengths are 1.74 Å. O2- is bonded in a 3-coordinate geometry to two equivalent Tm3+ and one V5+ atom.

36 MATERIALS SCIENCE↗