Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “B-Eu-Rh”

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.

4 records
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on EuB2Rh3 by Materials Project

EuRh3B2 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Eu is bonded in a 12-coordinate geometry to two equivalent Eu, twelve equivalent Rh, and six equivalent B atoms. Both Eu–Eu bond lengths are 2.96 Å. All Eu–Rh bond lengths are 3.20 Å. All Eu–B bond lengths are 3.27 Å. Rh is bonded in a distorted square co-planar geometry to four equivalent Eu and four equivalent B atoms. All Rh–B bond lengths are 2.21 Å. B is bonded in a 6-coordinate geometry to three equivalent Eu and six equivalent Rh atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on EuBRh3 by Materials Project

EuRh3B is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Eu is bonded to twelve equivalent Rh atoms to form EuRh12 cuboctahedra that share corners with twelve equivalent EuRh12 cuboctahedra, faces with six equivalent EuRh12 cuboctahedra, and faces with eight equivalent BRh6 octahedra. All Eu–Rh bond lengths are 3.01 Å. Rh is bonded to four equivalent Eu and two equivalent B atoms to form a mixture of distorted face, edge, and corner-sharing RhEu4B2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°. Both Rh–B bond lengths are 2.13 Å. B is bonded to six equivalent Rh atoms to form BRh6 octahedra that share corners with six equivalent BRh6 octahedra and faces with eight equivalent EuRh12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Eu2B4Rh5 by Materials Project

Eu2Rh5B4 crystallizes in the orthorhombic Fmmm space group. The structure is three-dimensional. Eu is bonded in a 8-coordinate geometry to ten Rh and six equivalent B atoms. There are a spread of Eu–Rh bond distances ranging from 3.10–3.29 Å. There are two shorter (3.04 Å) and four longer (3.21 Å) Eu–B bond lengths. There are three inequivalent Rh sites. In the first Rh site, Rh is bonded in a distorted square co-planar geometry to four equivalent Eu and four equivalent B atoms. All Rh–B bond lengths are 2.20 Å. In the second Rh site, Rh is bonded in a 4-coordinate geometry to four equivalent Eu and four equivalent B atoms. All Rh–B bond lengths are 2.13 Å. In the third Rh site, Rh is bonded in a distorted square co-planar geometry to four equivalent Eu and four equivalent B atoms. All Rh–B bond lengths are 2.18 Å. B is bonded in a 5-coordinate geometry to three equivalent Eu and five Rh atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Eu3(B3Rh4)2 by Materials Project

Eu3(Rh4B3)2 crystallizes in the orthorhombic Fmmm space group. The structure is three-dimensional. there are three inequivalent Eu sites. In the first Eu site, Eu is bonded in a 6-coordinate geometry to one Eu, ten Rh, and six equivalent B atoms. The Eu–Eu bond length is 3.15 Å. There are a spread of Eu–Rh bond distances ranging from 3.05–3.30 Å. There are two shorter (2.97 Å) and four longer (3.21 Å) Eu–B bond lengths. In the second Eu site, Eu is bonded in a 12-coordinate geometry to two Eu, twelve Rh, and six equivalent B atoms. The Eu–Eu bond length is 3.15 Å. There are four shorter (3.16 Å) and eight longer (3.18 Å) Eu–Rh bond lengths. There are four shorter (3.22 Å) and two longer (3.30 Å) Eu–B bond lengths. In the third Eu site, Eu is bonded in a 6-coordinate geometry to one Eu, ten Rh, and six equivalent B atoms. There are a spread of Eu–Rh bond distances ranging from 3.05–3.30 Å. There are two shorter (2.97 Å) and four longer (3.21 Å) Eu–B bond lengths. There are three inequivalent Rh sites. In the first Rh site, Rh is bonded in a distorted square co-planar geometry to four Eu and four B atoms. There are two shorter (2.18 Å) and two longer (2.21 Å) Rh–B bond lengths. In the second Rh site, Rh is bonded in a 4-coordinate geometry to four equivalent Eu and four equivalent B atoms. All Rh–B bond lengths are 2.13 Å. In the third Rh site, Rh is bonded in a distorted square co-planar geometry to four Eu and four B atoms. There are two shorter (2.14 Å) and two longer (2.21 Å) Rh–B bond lengths. There are four inequivalent B sites. In the first B site, B is bonded in a 6-coordinate geometry to three equivalent Eu and six Rh atoms. Both B–Rh bond lengths are 2.21 Å. In the second B site, B is bonded in a 5-coordinate geometry to three equivalent Eu and five Rh atoms. In the third B site, B is bonded in a 6-coordinate geometry to three equivalent Eu and six Rh atoms. There are two shorter (3.22 Å) and one longer (3.30 Å) B–Eu bond lengths. All B–Rh bond lengths are 2.18 Å. In the fourth B site, B is bonded in a 6-coordinate geometry to three equivalent Eu and six Rh atoms. There are two shorter (3.22 Å) and one longer (3.30 Å) B–Eu bond lengths. All B–Rh bond lengths are 2.18 Å.

36 MATERIALS SCIENCE↗