Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Ta”

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.

At least 1,261 records · Page 70
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on TaMnRu2 by Materials Project

TaMnRu2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ta is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Ta–Ru bond lengths are 2.69 Å. Mn is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Mn–Ru bond lengths are 2.69 Å. Ru is bonded in a body-centered cubic geometry to four equivalent Ta and four equivalent Mn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TaTiMn2 by Materials Project

TiTaMn2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ti is bonded in a distorted body-centered cubic geometry to eight equivalent Mn atoms. All Ti–Mn bond lengths are 2.62 Å. Ta is bonded in a distorted body-centered cubic geometry to eight equivalent Mn atoms. All Ta–Mn bond lengths are 2.62 Å. Mn is bonded in a body-centered cubic geometry to four equivalent Ti and four equivalent Ta atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ScTaRu2 by Materials Project

ScTaRu2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Sc is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Sc–Ru bond lengths are 2.76 Å. Ta is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Ta–Ru bond lengths are 2.76 Å. Ru is bonded in a body-centered cubic geometry to four equivalent Sc and four equivalent Ta atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TaInRu2 by Materials Project

TaRu2In is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ta is bonded in a body-centered cubic geometry to eight equivalent Ru atoms. All Ta–Ru bond lengths are 2.76 Å. Ru is bonded in a body-centered cubic geometry to four equivalent Ta and four equivalent In atoms. All Ru–In bond lengths are 2.76 Å. In is bonded in a body-centered cubic geometry to eight equivalent Ru atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TaTlPt by Materials Project

TaPtTl is half-Heusler structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. Ta is bonded to four equivalent Pt atoms to form TaPt4 tetrahedra that share corners with four equivalent TlPt4 tetrahedra, corners with twelve equivalent TaPt4 tetrahedra, and edges with six equivalent TlPt4 tetrahedra. All Ta–Pt bond lengths are 2.74 Å. Pt is bonded in a body-centered cubic geometry to four equivalent Ta and four equivalent Tl atoms. All Pt–Tl bond lengths are 2.74 Å. Tl is bonded to four equivalent Pt atoms to form distorted TlPt4 tetrahedra that share corners with four equivalent TaPt4 tetrahedra, corners with twelve equivalent TlPt4 tetrahedra, and edges with six equivalent TaPt4 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ScTaFe2 by Materials Project

ScTaFe2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Sc is bonded in a body-centered cubic geometry to eight equivalent Fe atoms. All Sc–Fe bond lengths are 2.66 Å. Ta is bonded in a body-centered cubic geometry to eight equivalent Fe atoms. All Ta–Fe bond lengths are 2.66 Å. Fe is bonded in a body-centered cubic geometry to four equivalent Sc and four equivalent Ta atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HoTaOs2 by Materials Project

HoTaOs2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ho is bonded in a body-centered cubic geometry to eight equivalent Os atoms. All Ho–Os bond lengths are 2.84 Å. Ta is bonded in a body-centered cubic geometry to eight equivalent Os atoms. All Ta–Os bond lengths are 2.84 Å. Os is bonded in a body-centered cubic geometry to four equivalent Ho and four equivalent Ta atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiTaIr2 by Materials Project

LiTaIr2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Li is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Li–Ir bond lengths are 2.67 Å. Ta is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Ta–Ir bond lengths are 2.67 Å. Ir is bonded in a body-centered cubic geometry to four equivalent Li and four equivalent Ta atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mg3Ta by Materials Project

Mg3Ta is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Mg is bonded to eight equivalent Mg and four equivalent Ta atoms to form MgMg8Ta4 cuboctahedra that share corners with twelve equivalent MgMg8Ta4 cuboctahedra, edges with eight equivalent TaMg12 cuboctahedra, edges with sixteen equivalent MgMg8Ta4 cuboctahedra, faces with four equivalent TaMg12 cuboctahedra, and faces with fourteen equivalent MgMg8Ta4 cuboctahedra. All Mg–Mg bond lengths are 3.04 Å. All Mg–Ta bond lengths are 3.04 Å. Ta is bonded to twelve equivalent Mg atoms to form TaMg12 cuboctahedra that share corners with twelve equivalent TaMg12 cuboctahedra, edges with twenty-four equivalent MgMg8Ta4 cuboctahedra, faces with six equivalent TaMg12 cuboctahedra, and faces with twelve equivalent MgMg8Ta4 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ta2CN3 by Materials Project

Ta2N3C crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional and consists of one methane molecule and one Ta2N3 framework. In the Ta2N3 framework, Ta+3.50+ is bonded to six equivalent N3- atoms to form a mixture of distorted edge, face, and corner-sharing TaN6 pentagonal pyramids. All Ta–N bond lengths are 2.11 Å. N3- is bonded in a square co-planar geometry to four equivalent Ta+3.50+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TaZnOs2 by Materials Project

TaOs2Zn is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ta is bonded in a body-centered cubic geometry to eight equivalent Os atoms. All Ta–Os bond lengths are 2.70 Å. Os is bonded in a body-centered cubic geometry to four equivalent Ta and four equivalent Zn atoms. All Os–Zn bond lengths are 2.70 Å. Zn is bonded in a body-centered cubic geometry to eight equivalent Os atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TaTiFe2 by Materials Project

TiTaFe2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ti is bonded in a body-centered cubic geometry to eight equivalent Fe atoms. All Ti–Fe bond lengths are 2.61 Å. Ta is bonded in a body-centered cubic geometry to eight equivalent Fe atoms. All Ta–Fe bond lengths are 2.61 Å. Fe is bonded in a body-centered cubic geometry to four equivalent Ti and four equivalent Ta atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TaO3 by Materials Project

TaO3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Ta is bonded to twelve equivalent O atoms to form a mixture of face and corner-sharing TaO12 cuboctahedra. There are six shorter (2.24 Å) and six longer (2.34 Å) Ta–O bond lengths. O is bonded in a see-saw-like geometry to four equivalent Ta atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TaPd by Materials Project

PdTa is gamma CuTi structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Ta is bonded in a 10-coordinate geometry to six equivalent Pd atoms. There are a spread of Ta–Pd bond distances ranging from 2.72–3.11 Å. Pd is bonded in a 10-coordinate geometry to six equivalent Ta and four equivalent Pd atoms. All Pd–Pd bond lengths are 2.84 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on MgTa2CuO7 by Materials Project

MgTa2CuO7 crystallizes in the monoclinic P2/c space group. The structure is three-dimensional. there are two inequivalent Mg2+ sites. In the first Mg2+ site, Mg2+ is bonded to five O2- atoms to form MgO5 trigonal bipyramids that share corners with five TaO5 tetrahedra and an edgeedge with one MgO5 trigonal bipyramid. There are a spread of Mg–O bond distances ranging from 2.01–2.12 Å. In the second Mg2+ site, Mg2+ is bonded to six O2- atoms to form distorted MgO6 octahedra that share corners with six TaO4 tetrahedra. There are a spread of Mg–O bond distances ranging from 1.99–2.46 Å. There are three inequivalent Ta5+ sites. In the first Ta5+ site, Ta5+ is bonded to five O2- atoms to form distorted TaO5 tetrahedra that share a cornercorner with one MgO6 octahedra, corners with two TaO5 tetrahedra, and corners with two equivalent MgO5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 58°. There are a spread of Ta–O bond distances ranging from 1.82–2.56 Å. In the second Ta5+ site, Ta5+ is bonded to four O2- atoms to form TaO4 tetrahedra that share corners with two TaO4 tetrahedra and corners with three equivalent MgO5 trigonal bipyramids. There are a spread of Ta–O bond distances ranging from 1.85–1.87 Å. In the third Ta5+ site, Ta5+ is bonded to four O2- atoms to form distorted TaO4 tetrahedra that share corners with two equivalent MgO6 octahedra and a cornercorner with one TaO4 tetrahedra. The corner-sharing octahedra tilt angles range from 17–51°. There are a spread of Ta–O bond distances ranging from 1.80–1.91 Å. There are two inequivalent Cu2+ sites. In the first Cu2+ site, Cu2+ is bonded in a distorted see-saw-like geometry to four O2- atoms. There are a spread of Cu–O bond distances ranging from 1.94–1.98 Å. In the second Cu2+ site, Cu2+ is bonded in a distorted see-saw-like geometry to four O2- atoms. There is two shorter (1.92 Å) and two longer (1.95 Å) Cu–O bond length. There are eleven inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Mg2+, one Ta5+, and one Cu2+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Ta5+ and one Cu2+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to two Ta5+ and one Cu2+ atom. In the fourth O2- site, O2- is bonded in a bent 150 degrees geometry to one Mg2+ and one Ta5+ atom. In the fifth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to one Mg2+, one Ta5+, and one Cu2+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Mg2+, one Ta5+, and one Cu2+ atom. In the seventh O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent Ta5+ atoms. In the eighth O2- site, O2- is bonded in a linear geometry to one Mg2+ and one Ta5+ atom. In the ninth O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Mg2+ and one Ta5+ atom. In the tenth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Mg2+, one Ta5+, and one Cu2+ atom. In the eleventh O2- site, O2- is bonded in a bent 150 degrees geometry to two Ta5+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TaCo by Materials Project

CoTa is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Ta is bonded in a body-centered cubic geometry to eight equivalent Co atoms. All Ta–Co bond lengths are 2.66 Å. Co is bonded in a body-centered cubic geometry to eight equivalent Ta atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Hf2TaN3 by Materials Project

Hf2TaN3 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Hf is bonded to six equivalent N atoms to form a mixture of distorted face, edge, and corner-sharing HfN6 pentagonal pyramids. All Hf–N bond lengths are 2.16 Å. Ta is bonded in a hexagonal planar geometry to six equivalent N atoms. All Ta–N bond lengths are 2.67 Å. N is bonded to four equivalent Hf and two equivalent Ta atoms to form a mixture of face, edge, and corner-sharing NHf4Ta2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfTa2N3 by Materials Project

HfTa2N3 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Hf is bonded in a hexagonal planar geometry to six equivalent N atoms. All Hf–N bond lengths are 2.63 Å. Ta is bonded to six equivalent N atoms to form a mixture of distorted face, edge, and corner-sharing TaN6 pentagonal pyramids. All Ta–N bond lengths are 2.13 Å. N is bonded to two equivalent Hf and four equivalent Ta atoms to form a mixture of face, edge, and corner-sharing NHf2Ta4 octahedra. The corner-sharing octahedra tilt angles range from 0–60°.

36 MATERIALS SCIENCE↗