Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Ir”

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 1,045 records · Page 58

Materials Data on TmHfIr2 by Materials Project

TmHfIr2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Tm is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Tm–Ir bond lengths are 2.89 Å. Hf is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Hf–Ir bond lengths are 2.89 Å. Ir is bonded in a body-centered cubic geometry to four equivalent Tm and four equivalent Hf atoms.

36 MATERIALS SCIENCE↗

Materials Data on DyYIr2 by Materials Project

DyYIr2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Dy is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Dy–Ir bond lengths are 2.98 Å. Y is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Y–Ir bond lengths are 2.98 Å. Ir is bonded in a body-centered cubic geometry to four equivalent Dy and four equivalent Y atoms.

36 MATERIALS SCIENCE↗

Materials Data on VIr by Materials Project

IrV crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. there are two inequivalent V sites. In the first V site, V is bonded in a 12-coordinate geometry to four V and eight equivalent Ir atoms. There are two shorter (2.50 Å) and two longer (2.76 Å) V–V bond lengths. There are a spread of V–Ir bond distances ranging from 2.61–2.84 Å. In the second V site, V is bonded in a 8-coordinate geometry to two equivalent V and eight equivalent Ir atoms. There are a spread of V–Ir bond distances ranging from 2.56–2.75 Å. Ir is bonded in a 8-coordinate geometry to eight V atoms.

36 MATERIALS SCIENCE↗

Materials Data on HfAlIr2 by Materials Project

HfIr2Al is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Hf is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Hf–Ir bond lengths are 2.75 Å. Ir is bonded in a body-centered cubic geometry to four equivalent Hf and four equivalent Al atoms. All Ir–Al bond lengths are 2.75 Å. Al is bonded in a body-centered cubic geometry to eight equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on TeIrO6 by Materials Project

IrTeO6 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Ir is bonded to six O atoms to form IrO6 octahedra that share corners with six equivalent TeO6 octahedra. The corner-sharing octahedra tilt angles range from 42–44°. There is four shorter (1.93 Å) and two longer (1.94 Å) Ir–O bond length. Te is bonded to six O atoms to form TeO6 octahedra that share corners with six equivalent IrO6 octahedra. The corner-sharing octahedra tilt angles range from 42–44°. All Te–O bond lengths are 1.98 Å. There are three inequivalent O sites. In the first O site, O is bonded in a bent 150 degrees geometry to one Ir and one Te atom. In the second O site, O is bonded in a bent 150 degrees geometry to one Ir and one Te atom. In the third O site, O is bonded in a bent 150 degrees geometry to one Ir and one Te atom.

36 MATERIALS SCIENCE↗

Materials Data on LaGe2Ir3 by Materials Project

LaIr3Ge2 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. La is bonded in a 6-coordinate geometry to twelve equivalent Ir and six equivalent Ge atoms. All La–Ir bond lengths are 3.44 Å. All La–Ge bond lengths are 3.29 Å. Ir is bonded in a 12-coordinate geometry to four equivalent La and four equivalent Ge atoms. All Ir–Ge bond lengths are 2.53 Å. Ge is bonded in a 9-coordinate geometry to three equivalent La and six equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on TbB2Ir3 by Materials Project

TbIr3B2 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Tb is bonded in a 12-coordinate geometry to two equivalent Tb, twelve equivalent Ir, and six equivalent B atoms. Both Tb–Tb bond lengths are 3.16 Å. All Tb–Ir bond lengths are 3.16 Å. All Tb–B bond lengths are 3.16 Å. Ir is bonded in a distorted square co-planar geometry to four equivalent Tb and four equivalent B atoms. All Ir–B bond lengths are 2.23 Å. B is bonded in a 6-coordinate geometry to three equivalent Tb and six equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on LuB2Ir3 by Materials Project

LuIr3B2 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Lu is bonded in a 12-coordinate geometry to two equivalent Lu, twelve equivalent Ir, and six equivalent B atoms. Both Lu–Lu bond lengths are 3.15 Å. All Lu–Ir bond lengths are 3.14 Å. All Lu–B bond lengths are 3.14 Å. Ir is bonded in a distorted square co-planar geometry to four equivalent Lu and four equivalent B atoms. All Ir–B bond lengths are 2.22 Å. B is bonded in a 6-coordinate geometry to three equivalent Lu and six equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on NdB2Ir3 by Materials Project

NdIr3B2 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Nd is bonded in a 12-coordinate geometry to two equivalent Nd, twelve equivalent Ir, and six equivalent B atoms. Both Nd–Nd bond lengths are 3.12 Å. All Nd–Ir bond lengths are 3.19 Å. All Nd–B bond lengths are 3.21 Å. Ir is bonded in a distorted square co-planar geometry to four equivalent Nd and four equivalent B atoms. All Ir–B bond lengths are 2.24 Å. B is bonded in a 6-coordinate geometry to three equivalent Nd and six equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on YbB2Ir3 by Materials Project

YbIr3B2 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Yb is bonded in a 12-coordinate geometry to two equivalent Yb, twelve equivalent Ir, and six equivalent B atoms. Both Yb–Yb bond lengths are 2.93 Å. All Yb–Ir bond lengths are 3.17 Å. All Yb–B bond lengths are 3.25 Å. Ir is bonded in a distorted square co-planar geometry to four equivalent Yb and four equivalent B atoms. All Ir–B bond lengths are 2.19 Å. B is bonded in a 6-coordinate geometry to three equivalent Yb and six equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on DyB2Ir3 by Materials Project

DyIr3B2 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Dy is bonded in a 12-coordinate geometry to two equivalent Dy, twelve equivalent Ir, and six equivalent B atoms. Both Dy–Dy bond lengths are 3.15 Å. All Dy–Ir bond lengths are 3.16 Å. All Dy–B bond lengths are 3.16 Å. Ir is bonded in a distorted square co-planar geometry to four equivalent Dy and four equivalent B atoms. All Ir–B bond lengths are 2.23 Å. B is bonded in a 6-coordinate geometry to three equivalent Dy and six equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on PrNdIr2 by Materials Project

NdPrIr2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Nd is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Nd–Ir bond lengths are 3.09 Å. Pr is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Pr–Ir bond lengths are 3.09 Å. Ir is bonded in a body-centered cubic geometry to four equivalent Nd and four equivalent Pr atoms.

36 MATERIALS SCIENCE↗

Materials Data on LaSbIr by Materials Project

LaIrSb crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. La is bonded in a 1-coordinate geometry to six equivalent Ir and six equivalent Sb atoms. There are a spread of La–Ir bond distances ranging from 3.09–3.67 Å. There are a spread of La–Sb bond distances ranging from 3.29–3.44 Å. Ir is bonded in a 10-coordinate geometry to six equivalent La and four equivalent Sb atoms. There are three shorter (2.75 Å) and one longer (2.82 Å) Ir–Sb bond lengths. Sb is bonded in a 10-coordinate geometry to six equivalent La and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on ScSiIr by Materials Project

ScIrSi crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Sc is bonded in a 11-coordinate geometry to six equivalent Ir and five equivalent Si atoms. There are a spread of Sc–Ir bond distances ranging from 2.90–3.07 Å. There are a spread of Sc–Si bond distances ranging from 2.80–2.88 Å. Ir is bonded in a 10-coordinate geometry to six equivalent Sc and four equivalent Si atoms. There are three shorter (2.46 Å) and one longer (2.49 Å) Ir–Si bond lengths. Si is bonded in a 9-coordinate geometry to five equivalent Sc and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on NdSiIr by Materials Project

NdIrSi crystallizes in the cubic P2_13 space group. The structure is three-dimensional. Nd is bonded in a 8-coordinate geometry to four equivalent Ir and four equivalent Si atoms. There are three shorter (3.12 Å) and one longer (3.46 Å) Nd–Ir bond lengths. There are one shorter (3.13 Å) and three longer (3.20 Å) Nd–Si bond lengths. Ir is bonded in a 3-coordinate geometry to four equivalent Nd and three equivalent Si atoms. All Ir–Si bond lengths are 2.34 Å. Si is bonded in a 3-coordinate geometry to four equivalent Nd and three equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on MgScIr2 by Materials Project

MgScIr2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Mg is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Mg–Ir bond lengths are 2.75 Å. Sc is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Sc–Ir bond lengths are 2.75 Å. Ir is bonded in a body-centered cubic geometry to four equivalent Mg and four equivalent Sc atoms.

36 MATERIALS SCIENCE↗

Materials Data on YbPaIr2 by Materials Project

PaYbIr2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Pa–Ir bond lengths are 2.96 Å. Yb is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Yb–Ir bond lengths are 2.96 Å. Ir is bonded in a body-centered cubic geometry to four equivalent Pa and four equivalent Yb atoms.

36 MATERIALS SCIENCE↗

Materials Data on SmGeIr by Materials Project

SmIrGe crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Sm is bonded in a 11-coordinate geometry to six equivalent Ir and five equivalent Ge atoms. There are a spread of Sm–Ir bond distances ranging from 3.09–3.38 Å. There are two shorter (3.03 Å) and three longer (3.10 Å) Sm–Ge bond lengths. Ir is bonded in a 10-coordinate geometry to six equivalent Sm and four equivalent Ge atoms. There are a spread of Ir–Ge bond distances ranging from 2.57–2.68 Å. Ge is bonded in a 9-coordinate geometry to five equivalent Sm and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗