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.
DyAg is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Dy is bonded in a body-centered cubic geometry to eight equivalent Ag atoms. All Dy–Ag bond lengths are 3.16 Å. Ag is bonded in a body-centered cubic geometry to eight equivalent Dy atoms.
Ag2Dy crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Dy is bonded in a distorted q6 geometry to ten equivalent Ag atoms. There are two shorter (3.06 Å) and eight longer (3.08 Å) Dy–Ag bond lengths. Ag is bonded in a 10-coordinate geometry to five equivalent Dy atoms.
Dy14Ag51 is Bergman Structure: Mg32(Al,Zn)49 Bergman-derived structured and crystallizes in the hexagonal P-6 space group. The structure is three-dimensional. there are five inequivalent Dy sites. In the first Dy site, Dy is bonded in a 12-coordinate geometry to fourteen Ag atoms. There are a spread of Dy–Ag bond distances ranging from 3.12–3.42 Å. In the second Dy site, Dy is bonded in a 8-coordinate geometry to fourteen Ag atoms. There are a spread of Dy–Ag bond distances ranging from 3.10–3.36 Å. In the third Dy site, Dy is bonded in a 2-coordinate geometry to fourteen Ag atoms. There are a spread of Dy–Ag bond distances ranging from 3.11–3.63 Å. In the fourth Dy site, Dy is bonded in a 12-coordinate geometry to fourteen Ag atoms. There are a spread of Dy–Ag bond distances ranging from 2.99–3.41 Å. In the fifth Dy site, Dy is bonded in a 6-coordinate geometry to fifteen Ag atoms. There are a spread of Dy–Ag bond distances ranging from 3.13–3.32 Å. There are thirteen inequivalent Ag sites. In the first Ag site, Ag is bonded in a 11-coordinate geometry to four Dy and seven Ag atoms. There are a spread of Ag–Ag bond distances ranging from 2.82–3.11 Å. In the second Ag site, Ag is bonded in a 11-coordinate geometry to four Dy and seven Ag atoms. There are a spread of Ag–Ag bond distances ranging from 2.82–3.10 Å. In the third Ag site, Ag is bonded to four Dy and eight Ag atoms to form a mixture of face and edge-sharing AgDy4Ag8 cuboctahedra. There are a spread of Ag–Ag bond distances ranging from 2.76–2.93 Å. In the fourth Ag site, Ag is bonded in a 12-coordinate geometry to four Dy and eight Ag atoms. There are a spread of Ag–Ag bond distances ranging from 2.81–3.09 Å. In the fifth Ag site, Ag is bonded in a 11-coordinate geometry to four Dy and seven Ag atoms. There are a spread of Ag–Ag bond distances ranging from 2.81–3.07 Å. In the sixth Ag site, Ag is bonded in a 12-coordinate geometry to four Dy and eight Ag atoms. There are one shorter (2.90 Å) and one longer (2.94 Å) Ag–Ag bond lengths. In the seventh Ag site, Ag is bonded in a 11-coordinate geometry to four Dy and seven Ag atoms. There are a spread of Ag–Ag bond distances ranging from 2.85–2.93 Å. In the eighth Ag site, Ag is bonded to four Dy and eight Ag atoms to form a mixture of face and edge-sharing AgDy4Ag8 cuboctahedra. In the ninth Ag site, Ag is bonded in a 11-coordinate geometry to three equivalent Dy and eight Ag atoms. Both Ag–Ag bond lengths are 2.81 Å. In the tenth Ag site, Ag is bonded in a 11-coordinate geometry to three equivalent Dy and eight Ag atoms. Both Ag–Ag bond lengths are 2.81 Å. In the eleventh Ag site, Ag is bonded in a 10-coordinate geometry to three equivalent Dy and seven Ag atoms. In the twelfth Ag site, Ag is bonded in a 10-coordinate geometry to three equivalent Dy and seven Ag atoms. In the thirteenth Ag site, Ag is bonded in a 1-coordinate geometry to four Dy and six Ag atoms. Both Ag–Ag bond lengths are 2.85 Å.
Ag3Dy is beta Cu3Ti-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Dy is bonded to twelve Ag atoms to form DyAg12 cuboctahedra that share corners with four equivalent DyAg12 cuboctahedra, corners with twenty-four AgDy4Ag4 cuboctahedra, edges with eight equivalent DyAg12 cuboctahedra, edges with eight equivalent AgDy4Ag4 cuboctahedra, faces with four equivalent DyAg12 cuboctahedra, and faces with six equivalent AgDy4Ag8 cuboctahedra. There are eight shorter (3.06 Å) and four longer (3.13 Å) Dy–Ag bond lengths. There are two inequivalent Ag sites. In the first Ag site, Ag is bonded to four equivalent Dy and four equivalent Ag atoms to form distorted AgDy4Ag4 cuboctahedra that share corners with eight equivalent DyAg12 cuboctahedra, corners with sixteen AgDy4Ag4 cuboctahedra, edges with four equivalent DyAg12 cuboctahedra, edges with sixteen AgDy4Ag4 cuboctahedra, and faces with six equivalent AgDy4Ag4 cuboctahedra. All Ag–Ag bond lengths are 3.06 Å. In the second Ag site, Ag is bonded to four equivalent Dy and eight equivalent Ag atoms to form distorted AgDy4Ag8 cuboctahedra that share corners with eight equivalent DyAg12 cuboctahedra, corners with twenty AgDy4Ag4 cuboctahedra, edges with sixteen AgDy4Ag4 cuboctahedra, faces with four equivalent AgDy4Ag8 cuboctahedra, and faces with six equivalent DyAg12 cuboctahedra.