Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Co-Gd-O-Sr”

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.

3 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on SrGdCoO4 by Materials Project

GdSrCoO4 is (La,Ba)CuO4-derived structured and crystallizes in the tetragonal I4mm space group. The structure is three-dimensional. Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.40–2.70 Å. Gd3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Gd–O bond distances ranging from 2.32–2.69 Å. Co3+ is bonded to six O2- atoms to form corner-sharing CoO6 octahedra. The corner-sharing octahedral tilt angles are 12°. There are a spread of Co–O bond distances ranging from 1.90–2.02 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to one Sr2+, four equivalent Gd3+, and one Co3+ atom to form a mixture of distorted edge and corner-sharing OSrGd4Co octahedra. The corner-sharing octahedra tilt angles range from 0–11°. In the second O2- site, O2- is bonded to four equivalent Sr2+, one Gd3+, and one Co3+ atom to form a mixture of distorted edge and corner-sharing OSr4GdCo octahedra. The corner-sharing octahedra tilt angles range from 0–15°. In the third O2- site, O2- is bonded in a 6-coordinate geometry to two equivalent Sr2+, two equivalent Gd3+, and two equivalent Co3+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrGd2Co2O7 by Materials Project

Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrGdCoO4 by Materials Project

GdSrCoO4 is (La,Ba)CuO4-derived structured and crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Sr2+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Sr–O bond distances ranging from 2.39–2.70 Å. Gd3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of Gd–O bond distances ranging from 2.29–2.74 Å. Co3+ is bonded to six O2- atoms to form corner-sharing CoO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of Co–O bond distances ranging from 1.90–2.13 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Sr2+, three equivalent Gd3+, and one Co3+ atom to form distorted OSr2Gd3Co octahedra that share corners with seventeen OSr2Gd2Co2 octahedra, edges with eight OSr2Gd3Co octahedra, and faces with four equivalent OSr2Gd2Co2 octahedra. The corner-sharing octahedra tilt angles range from 0–53°. In the second O2- site, O2- is bonded to three equivalent Sr2+, two equivalent Gd3+, and one Co3+ atom to form distorted OSr3Gd2Co octahedra that share corners with seventeen OSr2Gd2Co2 octahedra, edges with eight OSr2Gd3Co octahedra, and faces with four equivalent OSr2Gd2Co2 octahedra. The corner-sharing octahedra tilt angles range from 0–56°. In the third O2- site, O2- is bonded to two equivalent Sr2+, two equivalent Gd3+, and two equivalent Co3+ atoms to form a mixture of distorted edge, corner, and face-sharing OSr2Gd2Co2 octahedra. The corner-sharing octahedra tilt angles range from 1–56°.

36 MATERIALS SCIENCE↗