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 1,135 records · Page 63
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on CeAlIr by Materials Project

CeIrAl crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Ce is bonded to six equivalent Ir and six equivalent Al atoms to form a mixture of face and edge-sharing CeAl6Ir6 cuboctahedra. All Ce–Ir bond lengths are 3.10 Å. All Ce–Al bond lengths are 3.10 Å. Ir is bonded in a 3-coordinate geometry to six equivalent Ce and three equivalent Al atoms. All Ir–Al bond lengths are 2.57 Å. Al is bonded in a distorted trigonal planar geometry to six equivalent Ce and three equivalent Ir atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ho3Ge13Ir4 by Materials Project

Ho3Ir4Ge13 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. Ho is bonded in a 8-coordinate geometry to four equivalent Ir and twelve equivalent Ge atoms. All Ho–Ir bond lengths are 3.19 Å. There are eight shorter (3.14 Å) and four longer (3.24 Å) Ho–Ge bond lengths. Ir is bonded in a 6-coordinate geometry to three equivalent Ho and six equivalent Ge atoms. All Ir–Ge bond lengths are 2.50 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 6-coordinate geometry to three equivalent Ho, two equivalent Ir, and two Ge atoms. There are one shorter (2.65 Å) and one longer (3.09 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a cuboctahedral geometry to twelve equivalent Ge atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TiMnIr2 by Materials Project

TiMnIr2 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 Ir atoms. All Ti–Ir bond lengths are 2.67 Å. Mn is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Mn–Ir bond lengths are 2.67 Å. Ir is bonded in a body-centered cubic geometry to four equivalent Ti and four equivalent Mn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on EuPIr by Materials Project

EuIrP crystallizes in the cubic P2_13 space group. The structure is three-dimensional. Eu is bonded in a 8-coordinate geometry to four equivalent Ir and four equivalent P atoms. There are one shorter (3.25 Å) and three longer (3.26 Å) Eu–Ir bond lengths. There are one shorter (3.04 Å) and three longer (3.15 Å) Eu–P bond lengths. Ir is bonded in a 7-coordinate geometry to four equivalent Eu and three equivalent P atoms. All Ir–P bond lengths are 2.28 Å. P is bonded in a 7-coordinate geometry to four equivalent Eu and three equivalent Ir atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Yb3Sn13Ir4 by Materials Project

Yb3Ir4Sn13 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. Yb is bonded in a 12-coordinate geometry to four equivalent Ir and twelve equivalent Sn atoms. All Yb–Ir bond lengths are 3.46 Å. There are eight shorter (3.44 Å) and four longer (3.46 Å) Yb–Sn bond lengths. Ir is bonded in a 6-coordinate geometry to three equivalent Yb and six equivalent Sn atoms. All Ir–Sn bond lengths are 2.69 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 2-coordinate geometry to three equivalent Yb, two equivalent Ir, and one Sn atom. The Sn–Sn bond length is 3.34 Å. In the second Sn site, Sn is bonded in a cuboctahedral geometry to twelve equivalent Sn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Na3Ir by Materials Project

Na3Ir is Uranium Silicide-like structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. there are two inequivalent Na sites. In the first Na site, Na is bonded in a 12-coordinate geometry to four equivalent Ir atoms. All Na–Ir bond lengths are 3.10 Å. In the second Na site, Na is bonded in a distorted square co-planar geometry to four equivalent Ir atoms. All Na–Ir bond lengths are 3.16 Å. Ir is bonded to twelve Na atoms to form a mixture of face, edge, and corner-sharing IrNa12 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Nb2Al3Ir by Materials Project

Nb2IrAl3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Nb is bonded in a 3-coordinate geometry to four equivalent Nb, three equivalent Ir, and nine equivalent Al atoms. There are one shorter (2.83 Å) and three longer (3.24 Å) Nb–Nb bond lengths. All Nb–Ir bond lengths are 3.07 Å. There are six shorter (2.97 Å) and three longer (2.98 Å) Nb–Al bond lengths. Ir is bonded to six equivalent Nb and six equivalent Al atoms to form a mixture of distorted edge and face-sharing IrNb6Al6 cuboctahedra. All Ir–Al bond lengths are 2.52 Å. Al is bonded in a distorted water-like geometry to six equivalent Nb and two equivalent Ir atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TbSi2IrRh by Materials Project

TbIrRhSi2 crystallizes in the tetragonal I-4m2 space group. The structure is three-dimensional. Tb is bonded in a 8-coordinate geometry to four equivalent Ir, four equivalent Rh, and eight equivalent Si atoms. All Tb–Ir bond lengths are 3.23 Å. All Tb–Rh bond lengths are 3.23 Å. All Tb–Si bond lengths are 3.13 Å. Ir is bonded to four equivalent Tb and four equivalent Si atoms to form distorted IrTb4Si4 tetrahedra that share corners with four equivalent RhTb4Si4 tetrahedra, corners with eight equivalent IrTb4Si4 tetrahedra, edges with two equivalent RhTb4Si4 tetrahedra, edges with four equivalent IrTb4Si4 tetrahedra, and faces with four equivalent RhTb4Si4 tetrahedra. All Ir–Si bond lengths are 2.41 Å. Rh is bonded to four equivalent Tb and four equivalent Si atoms to form distorted RhTb4Si4 tetrahedra that share corners with four equivalent IrTb4Si4 tetrahedra, corners with eight equivalent RhTb4Si4 tetrahedra, edges with two equivalent IrTb4Si4 tetrahedra, edges with four equivalent RhTb4Si4 tetrahedra, and faces with four equivalent IrTb4Si4 tetrahedra. All Rh–Si bond lengths are 2.41 Å. Si is bonded in a 9-coordinate geometry to four equivalent Tb, two equivalent Ir, two equivalent Rh, and one Si atom. The Si–Si bond length is 2.43 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ZrScIr2 by Materials Project

ScZrIr2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two ScZrIr2 ribbons oriented in the (1, 0, 0) direction. Sc is bonded in a linear geometry to two equivalent Ir atoms. Both Sc–Ir bond lengths are 2.43 Å. Zr is bonded in a linear geometry to two equivalent Ir atoms. Both Zr–Ir bond lengths are 2.33 Å. Ir is bonded in a linear geometry to one Sc and one Zr atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sm(BIr)2 by Materials Project

Sm(IrB)2 is alpha Pu-derived structured and crystallizes in the orthorhombic Fddd space group. The structure is three-dimensional. Sm is bonded in a 2-coordinate geometry to eight equivalent Ir and six equivalent B atoms. There are four shorter (3.08 Å) and four longer (3.27 Å) Sm–Ir bond lengths. There are two shorter (3.02 Å) and four longer (3.15 Å) Sm–B bond lengths. Ir is bonded in a 4-coordinate geometry to four equivalent Sm and four equivalent B atoms. There are two shorter (2.09 Å) and two longer (2.18 Å) Ir–B bond lengths. B is bonded in a 4-coordinate geometry to three equivalent Sm and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ZrGeIr by Materials Project

ZrIrGe crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Zr is bonded in a 11-coordinate geometry to six equivalent Ir and five equivalent Ge atoms. There are a spread of Zr–Ir bond distances ranging from 2.99–3.12 Å. There are three shorter (2.85 Å) and two longer (2.87 Å) Zr–Ge bond lengths. Ir is bonded in a 12-coordinate geometry to six equivalent Zr and four equivalent Ge atoms. There are a spread of Ir–Ge bond distances ranging from 2.52–2.57 Å. Ge is bonded in a 9-coordinate geometry to five equivalent Zr and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HoLuIr2 by Materials Project

LuHoIr2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Lu is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Lu–Ir bond lengths are 2.93 Å. Ho is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Ho–Ir bond lengths are 2.93 Å. Ir is bonded in a body-centered cubic geometry to four equivalent Lu and four equivalent Ho atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on BeCrIr2 by Materials Project

BeCrIr2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two BeCrIr2 ribbons oriented in the (1, 0, 0) direction. Be is bonded in a linear geometry to two equivalent Ir atoms. Both Be–Ir bond lengths are 2.28 Å. Cr is bonded in a linear geometry to two equivalent Ir atoms. Both Cr–Ir bond lengths are 2.08 Å. Ir is bonded in a linear geometry to one Be and one Cr atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Er(BIr)4 by Materials Project

Er(IrB)4 crystallizes in the tetragonal P4_2/nmc space group. The structure is three-dimensional. Er is bonded in a 12-coordinate geometry to twelve equivalent Ir and twelve equivalent B atoms. There are four shorter (2.97 Å) and eight longer (3.21 Å) Er–Ir bond lengths. There are eight shorter (3.08 Å) and four longer (3.13 Å) Er–B bond lengths. Ir is bonded in a 5-coordinate geometry to three equivalent Er and five equivalent B atoms. There are a spread of Ir–B bond distances ranging from 2.22–2.27 Å. B is bonded in a 6-coordinate geometry to three equivalent Er, five equivalent Ir, and one B atom. The B–B bond length is 1.87 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiMg2Ir by Materials Project

LiMg2Ir is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Li is bonded in a distorted body-centered cubic geometry to eight equivalent Mg and six equivalent Ir atoms. All Li–Mg bond lengths are 2.76 Å. All Li–Ir bond lengths are 3.19 Å. Mg is bonded in a body-centered cubic geometry to four equivalent Li and four equivalent Ir atoms. All Mg–Ir bond lengths are 2.76 Å. Ir is bonded in a distorted body-centered cubic geometry to six equivalent Li and eight equivalent Mg atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on La3Sn13Ir4 by Materials Project

La3Ir4Sn13 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. La is bonded in a 12-coordinate geometry to four equivalent Ir and twelve equivalent Sn atoms. All La–Ir bond lengths are 3.49 Å. All La–Sn bond lengths are 3.48 Å. Ir is bonded in a 6-coordinate geometry to three equivalent La and six equivalent Sn atoms. All Ir–Sn bond lengths are 2.71 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 2-coordinate geometry to three equivalent La, two equivalent Ir, and one Sn atom. The Sn–Sn bond length is 3.37 Å. In the second Sn site, Sn is bonded in a cuboctahedral geometry to twelve equivalent Sn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PmYIr2 by Materials Project

PmYIr2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pm is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Pm–Ir bond lengths are 3.02 Å. Y is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Y–Ir bond lengths are 3.02 Å. Ir is bonded in a body-centered cubic geometry to four equivalent Pm and four equivalent Y atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on PmSmIr2 by Materials Project

SmPmIr2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Sm is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Sm–Ir bond lengths are 3.05 Å. Pm is bonded in a body-centered cubic geometry to eight equivalent Ir atoms. All Pm–Ir bond lengths are 3.05 Å. Ir is bonded in a body-centered cubic geometry to four equivalent Sm and four equivalent Pm atoms.

36 MATERIALS SCIENCE↗