SEARCH · Search NASA

Results for “Cu-Hf-P”

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 Hf(CuP)2 by Materials Project

Hf(CuP)2 crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. Hf4+ is bonded to six equivalent P3- atoms to form HfP6 octahedra that share corners with twelve equivalent CuP4 tetrahedra, edges with six equivalent HfP6 octahedra, and edges with six equivalent CuP4 tetrahedra. All Hf–P bond lengths are 2.66 Å. Cu1+ is bonded to four equivalent P3- atoms to form CuP4 tetrahedra that share corners with six equivalent HfP6 octahedra, corners with six equivalent CuP4 tetrahedra, edges with three equivalent HfP6 octahedra, and edges with three equivalent CuP4 tetrahedra. The corner-sharing octahedra tilt angles range from 17–55°. There are three shorter (2.31 Å) and one longer (2.40 Å) Cu–P bond lengths. P3- is bonded to three equivalent Hf4+ and four equivalent Cu1+ atoms to form a mixture of distorted corner and edge-sharing PHf3Cu4 pentagonal bipyramids.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on HfCuP by Materials Project

HfCuP is Ilmenite-like structured and crystallizes in the trigonal P3m1 space group. The structure is three-dimensional. Hf is bonded in a 6-coordinate geometry to three equivalent Cu and three equivalent P atoms. All Hf–Cu bond lengths are 2.83 Å. All Hf–P bond lengths are 2.50 Å. Cu is bonded in a 4-coordinate geometry to three equivalent Hf and one P atom. The Cu–P bond length is 2.25 Å. P is bonded in a rectangular see-saw-like geometry to three equivalent Hf and one Cu atom.

36 MATERIALS SCIENCE↗