SEARCH · Engineering Papers
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.
Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.
TmSi2 is hexagonal omega structure structured and crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Tm is bonded to twelve equivalent Si atoms to form a mixture of edge and face-sharing TmSi12 cuboctahedra. All Tm–Si bond lengths are 3.05 Å. Si is bonded in a 9-coordinate geometry to six equivalent Tm and three equivalent Si atoms. All Si–Si bond lengths are 2.36 Å.
Tm3Si is beta Cu3Ti-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Tm is bonded in a 12-coordinate geometry to four equivalent Si atoms. There are two shorter (3.14 Å) and two longer (3.26 Å) Tm–Si bond lengths. Si is bonded to twelve equivalent Tm atoms to form a mixture of face and corner-sharing SiTm12 cuboctahedra.
TmSi3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Tm is bonded to twelve equivalent Si atoms to form a mixture of corner and face-sharing TmSi12 cuboctahedra. All Tm–Si bond lengths are 2.90 Å. Si is bonded in a square co-planar geometry to four equivalent Tm atoms.