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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.

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At least 865 records · Page 48
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on LiAuO2 by Materials Project

LiAuO2 crystallizes in the tetragonal I4_122 space group. The structure is three-dimensional. Li1+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Li–O bond lengths are 2.02 Å. Au3+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Au–O bond lengths are 2.04 Å. O2- is bonded to two equivalent Li1+ and two equivalent Au3+ atoms to form a mixture of distorted edge and corner-sharing OLi2Au2 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on CuAgO2 by Materials Project

AgCuO2 crystallizes in the orthorhombic Pmmm space group. The structure is three-dimensional. Ag1+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Ag–O bond lengths are 2.26 Å. Cu3+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Cu–O bond lengths are 1.90 Å. O2- is bonded to two equivalent Ag1+ and two equivalent Cu3+ atoms to form a mixture of distorted edge and corner-sharing OCu2Ag2 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AgAuO2 by Materials Project

AuAgO2 crystallizes in the tetragonal I4_122 space group. The structure is three-dimensional. Au3+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Au–O bond lengths are 2.10 Å. Ag1+ is bonded in a distorted square co-planar geometry to four equivalent O2- atoms. All Ag–O bond lengths are 2.26 Å. O2- is bonded to two equivalent Au3+ and two equivalent Ag1+ atoms to form a mixture of edge and corner-sharing OAg2Au2 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiAgO2 by Materials Project

LiAgO2 crystallizes in the orthorhombic Pmna space group. The structure is three-dimensional. Li1+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Li–O bond lengths are 2.05 Å. Ag3+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Ag–O bond lengths are 2.03 Å. O2- is bonded to two equivalent Li1+ and two equivalent Ag3+ atoms to form a mixture of distorted edge and corner-sharing OLi2Ag2 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AgPdO2 by Materials Project

PdAgO2 crystallizes in the orthorhombic Pmmm space group. The structure is three-dimensional. Pd2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Pd–O bond lengths are 2.03 Å. Ag2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Ag–O bond lengths are 2.21 Å. O2- is bonded to two equivalent Pd2+ and two equivalent Ag2+ atoms to form a mixture of edge and corner-sharing OAg2Pd2 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AgHg3SbO6 by Materials Project

AgHg3SbO6 crystallizes in the trigonal R-3c space group. The structure is three-dimensional. Ag1+ is bonded in a distorted hexagonal planar geometry to six equivalent O2- atoms. All Ag–O bond lengths are 2.58 Å. Hg2+ is bonded in a distorted linear geometry to six equivalent O2- atoms. There are a spread of Hg–O bond distances ranging from 2.06–2.98 Å. Sb5+ is bonded in an octahedral geometry to six equivalent O2- atoms. All Sb–O bond lengths are 2.03 Å. O2- is bonded in a 2-coordinate geometry to one Ag1+, three equivalent Hg2+, and one Sb5+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LaCu3Ni2 by Materials Project

LaNi2Cu3 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. La is bonded in a distorted hexagonal planar geometry to six equivalent Ni and twelve equivalent Cu atoms. All La–Ni bond lengths are 2.90 Å. All La–Cu bond lengths are 3.24 Å. Ni is bonded in a 12-coordinate geometry to three equivalent La and six equivalent Cu atoms. All Ni–Cu bond lengths are 2.51 Å. Cu is bonded to four equivalent La, four equivalent Ni, and four equivalent Cu atoms to form a mixture of corner, edge, and face-sharing CuLa4Cu4Ni4 cuboctahedra. All Cu–Cu bond lengths are 2.51 Å.

36 MATERIALS SCIENCE↗
NASA NTRS2002

Development of inflatable antenna structures

Self-rigidizable spring-tape-reinforced (STR) booms were used to develop structural systems for large-aperture space inflatable radar antennas. The lightweight planar frames built with STR booms can be compactly stowed for launch, deployed by inflation pressure in space, and used to tension the RF membrane apertures of the antennas. Engineering models of a Ka-band reflectarray antenna and a L-band synthetic-aperture radar antenna were developed and have successfully demonstrated stowage and deployment, as well as RF performance. A design improvement was also being implemented to enhance long-term configuration stability and widen the application range of the STR booms.

inflatable antenna structures deployment↗
DOE OSTI2020

Materials Data on LiAg2F4 by Materials Project

LiAg2F4 crystallizes in the tetragonal I4_1/a space group. The structure is three-dimensional. Li1+ is bonded in a square co-planar geometry to four equivalent F1- atoms. All Li–F bond lengths are 2.02 Å. Ag+1.50+ is bonded in a square co-planar geometry to four equivalent F1- atoms. There are two shorter (2.20 Å) and two longer (2.22 Å) Ag–F bond lengths. F1- is bonded in a trigonal non-coplanar geometry to one Li1+ and two equivalent Ag+1.50+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LaNi3Rh2 by Materials Project

LaRh2Ni3 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. La is bonded in a distorted hexagonal planar geometry to six equivalent Rh and twelve equivalent Ni atoms. All La–Rh bond lengths are 2.93 Å. All La–Ni bond lengths are 3.30 Å. Rh is bonded in a 12-coordinate geometry to three equivalent La and six equivalent Ni atoms. All Rh–Ni bond lengths are 2.56 Å. Ni is bonded to four equivalent La, four equivalent Rh, and four equivalent Ni atoms to form a mixture of distorted face, edge, and corner-sharing NiLa4Ni4Rh4 cuboctahedra. All Ni–Ni bond lengths are 2.54 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LaZn3Ni2 by Materials Project

LaNi2Zn3 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. La is bonded in a distorted hexagonal planar geometry to six equivalent Ni and twelve equivalent Zn atoms. All La–Ni bond lengths are 3.04 Å. All La–Zn bond lengths are 3.34 Å. Ni is bonded in a 9-coordinate geometry to three equivalent La and six equivalent Zn atoms. All Ni–Zn bond lengths are 2.56 Å. Zn is bonded to four equivalent La, four equivalent Ni, and four equivalent Zn atoms to form a mixture of distorted face, edge, and corner-sharing ZnLa4Zn4Ni4 cuboctahedra. All Zn–Zn bond lengths are 2.63 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on UTa2O8 by Materials Project

UTa2O8 crystallizes in the trigonal P-31m space group. The structure is three-dimensional. U6+ is bonded in a distorted hexagonal planar geometry to six equivalent O2- atoms. All U–O bond lengths are 2.12 Å. Ta5+ is bonded in a body-centered cubic geometry to eight O2- atoms. There are two shorter (1.97 Å) and six longer (2.18 Å) Ta–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal non-coplanar geometry to one U6+ and two equivalent Ta5+ atoms. In the second O2- site, O2- is bonded in a linear geometry to two equivalent Ta5+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HgPb4 by Materials Project

HgPb4 crystallizes in the trigonal R-3m space group. The structure is three-dimensional. Hg is bonded in a distorted hexagonal planar geometry to six equivalent Pb atoms. All Hg–Pb bond lengths are 3.42 Å. There are two inequivalent Pb sites. In the first Pb site, Pb is bonded in a 12-coordinate geometry to three equivalent Hg and three equivalent Pb atoms. All Pb–Pb bond lengths are 3.62 Å. In the second Pb site, Pb is bonded to twelve Pb atoms to form a mixture of face, edge, and corner-sharing PbPb12 cuboctahedra. There are six shorter (3.52 Å) and three longer (3.61 Å) Pb–Pb bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SmCo2Cu3 by Materials Project

SmCo2Cu3 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Sm is bonded in a distorted hexagonal planar geometry to six equivalent Co and twelve equivalent Cu atoms. All Sm–Co bond lengths are 2.86 Å. All Sm–Cu bond lengths are 3.22 Å. Co is bonded in a 12-coordinate geometry to three equivalent Sm and six equivalent Cu atoms. All Co–Cu bond lengths are 2.51 Å. Cu is bonded to four equivalent Sm, four equivalent Co, and four equivalent Cu atoms to form a mixture of corner, edge, and face-sharing CuSm4Co4Cu4 cuboctahedra. All Cu–Cu bond lengths are 2.47 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SmCo3Ni2 by Materials Project

SmCo3Ni2 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Sm is bonded in a distorted hexagonal planar geometry to twelve equivalent Co and six equivalent Ni atoms. All Sm–Co bond lengths are 3.18 Å. All Sm–Ni bond lengths are 2.84 Å. Co is bonded to four equivalent Sm, four equivalent Co, and four equivalent Ni atoms to form a mixture of corner, edge, and face-sharing CoSm4Co4Ni4 cuboctahedra. All Co–Co bond lengths are 2.46 Å. All Co–Ni bond lengths are 2.47 Å. Ni is bonded in a 12-coordinate geometry to three equivalent Sm and six equivalent Co atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LaCo3Ni2 by Materials Project

LaCo3Ni2 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. La is bonded in a distorted hexagonal planar geometry to twelve equivalent Co and six equivalent Ni atoms. All La–Co bond lengths are 3.21 Å. All La–Ni bond lengths are 2.86 Å. Co is bonded to four equivalent La, four equivalent Co, and four equivalent Ni atoms to form a mixture of edge, corner, and face-sharing CoLa4Co4Ni4 cuboctahedra. All Co–Co bond lengths are 2.48 Å. All Co–Ni bond lengths are 2.49 Å. Ni is bonded in a 12-coordinate geometry to three equivalent La and six equivalent Co atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on YCo3Ni2 by Materials Project

YCo3Ni2 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Y is bonded in a distorted hexagonal planar geometry to twelve equivalent Co and six equivalent Ni atoms. All Y–Co bond lengths are 3.15 Å. All Y–Ni bond lengths are 2.81 Å. Co is bonded to four equivalent Y, four equivalent Co, and four equivalent Ni atoms to form a mixture of edge, face, and corner-sharing CoY4Co4Ni4 cuboctahedra. All Co–Co bond lengths are 2.43 Å. All Co–Ni bond lengths are 2.45 Å. Ni is bonded in a 12-coordinate geometry to three equivalent Y and six equivalent Co atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AgO by Materials Project

AgO crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. Ag2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. There are two shorter (2.16 Å) and two longer (2.17 Å) Ag–O bond lengths. O2- is bonded to four equivalent Ag2+ atoms to form a mixture of edge and corner-sharing OAg4 tetrahedra.

36 MATERIALS SCIENCE↗