Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Gd3YO6”

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.

Materials Data on Gd3YO6 by Materials Project

Gd3YO6 is Ilmenite-like structured and crystallizes in the trigonal R-3 space group. The structure is three-dimensional. Gd3+ is bonded to six O2- atoms to form distorted GdO6 pentagonal pyramids that share corners with two YO6 octahedra, corners with four equivalent GdO6 pentagonal pyramids, edges with two YO6 octahedra, and edges with four equivalent GdO6 pentagonal pyramids. The corner-sharing octahedra tilt angles range from 42–50°. There are a spread of Gd–O bond distances ranging from 2.26–2.42 Å. There are two inequivalent Y3+ sites. In the first Y3+ site, Y3+ is bonded to six equivalent O2- atoms to form YO6 octahedra that share corners with six equivalent GdO6 pentagonal pyramids and edges with six equivalent GdO6 pentagonal pyramids. All Y–O bond lengths are 2.29 Å. In the second Y3+ site, Y3+ is bonded to six equivalent O2- atoms to form YO6 octahedra that share corners with six equivalent GdO6 pentagonal pyramids and edges with six equivalent GdO6 pentagonal pyramids. All Y–O bond lengths are 2.26 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to three equivalent Gd3+ and one Y3+ atom to form a mixture of distorted edge and corner-sharing OGd3Y trigonal pyramids. In the second O2- site, O2- is bonded to three equivalent Gd3+ and one Y3+ atom to form a mixture of distorted edge and corner-sharing OGd3Y trigonal pyramids.

36 MATERIALS SCIENCE↗

Materials Data on Gd3YO6 by Materials Project

Gd3YO6 crystallizes in the orthorhombic Cmc2_1 space group. The structure is three-dimensional. there are two inequivalent Gd3+ sites. In the first Gd3+ site, Gd3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Gd–O bond distances ranging from 2.28–2.87 Å. In the second Gd3+ site, Gd3+ is bonded to seven O2- atoms to form distorted GdO7 pentagonal bipyramids that share a cornercorner with one YO5 trigonal bipyramid, edges with two equivalent GdO7 pentagonal bipyramids, and an edgeedge with one YO5 trigonal bipyramid. There are a spread of Gd–O bond distances ranging from 2.32–2.54 Å. Y3+ is bonded to five O2- atoms to form distorted YO5 trigonal bipyramids that share a cornercorner with one GdO7 pentagonal bipyramid, corners with two equivalent YO5 trigonal bipyramids, and an edgeedge with one GdO7 pentagonal bipyramid. There are a spread of Y–O bond distances ranging from 2.16–2.42 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded to four Gd3+ atoms to form a mixture of edge and corner-sharing OGd4 tetrahedra. In the second O2- site, O2- is bonded to three Gd3+ and one Y3+ atom to form a mixture of distorted edge and corner-sharing OGd3Y tetrahedra. In the third O2- site, O2- is bonded in a 4-coordinate geometry to four equivalent Gd3+ and two equivalent Y3+ atoms. In the fourth O2- site, O2- is bonded to three Gd3+ and one Y3+ atom to form distorted OGd3Y tetrahedra that share corners with twelve OGd4 tetrahedra and edges with two equivalent OGd3Y tetrahedra.

36 MATERIALS SCIENCE↗