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 919 records · Page 51

Materials Data on Ca(GeIr)2 by Materials Project

Ca(IrGe)2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Ca is bonded in a 8-coordinate geometry to eight equivalent Ir and eight equivalent Ge atoms. All Ca–Ir bond lengths are 3.35 Å. All Ca–Ge bond lengths are 3.24 Å. Ir is bonded in a 4-coordinate geometry to four equivalent Ca and four equivalent Ge atoms. All Ir–Ge bond lengths are 2.47 Å. Ge is bonded in a 9-coordinate geometry to four equivalent Ca, four equivalent Ir, and one Ge atom. The Ge–Ge bond length is 2.61 Å.

36 MATERIALS SCIENCE↗

Materials Data on USiIr by Materials Project

UIrSi crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. U is bonded in a 1-coordinate geometry to six equivalent Ir and six equivalent Si atoms. There are a spread of U–Ir bond distances ranging from 2.85–3.25 Å. There are a spread of U–Si bond distances ranging from 2.96–3.10 Å. Ir is bonded in a 10-coordinate geometry to six equivalent U and four equivalent Si atoms. There are a spread of Ir–Si bond distances ranging from 2.50–2.70 Å. Si is bonded in a 10-coordinate geometry to six equivalent U and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on CeGeIr by Materials Project

CeIrGe crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ce is bonded in a 1-coordinate geometry to six equivalent Ir and six equivalent Ge atoms. There are a spread of Ce–Ir bond distances ranging from 2.92–3.41 Å. There are a spread of Ce–Ge bond distances ranging from 3.07–3.22 Å. Ir is bonded in a 10-coordinate geometry to six equivalent Ce and four equivalent Ge atoms. There are a spread of Ir–Ge bond distances ranging from 2.58–2.79 Å. Ge is bonded in a 10-coordinate geometry to six equivalent Ce and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on UGeIr by Materials Project

UIrGe crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. U is bonded in a 1-coordinate geometry to six equivalent Ir and six equivalent Ge atoms. There are a spread of U–Ir bond distances ranging from 2.84–3.35 Å. There are a spread of U–Ge bond distances ranging from 3.01–3.16 Å. Ir is bonded in a 10-coordinate geometry to six equivalent U and four equivalent Ge atoms. There are a spread of Ir–Ge bond distances ranging from 2.57–2.73 Å. Ge is bonded in a 10-coordinate geometry to six equivalent U and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on U(SiIr)2 by Materials Project

UIr2Si2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. U is bonded in a 8-coordinate geometry to eight equivalent Ir and eight equivalent Si atoms. All U–Ir bond lengths are 3.22 Å. All U–Si bond lengths are 3.07 Å. Ir is bonded to four equivalent U and four equivalent Si atoms to form a mixture of distorted edge, face, and corner-sharing IrU4Si4 tetrahedra. All Ir–Si bond lengths are 2.43 Å. Si is bonded in a 9-coordinate geometry to four equivalent U, four equivalent Ir, and one Si atom. The Si–Si bond length is 2.30 Å.

36 MATERIALS SCIENCE↗

Materials Data on DySiIr by Materials Project

DyIrSi crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Dy is bonded in a 11-coordinate geometry to six equivalent Ir and five equivalent Si atoms. There are a spread of Dy–Ir bond distances ranging from 2.99–3.30 Å. There are a spread of Dy–Si bond distances ranging from 2.96–3.01 Å. Ir is bonded in a 10-coordinate geometry to six equivalent Dy and four equivalent Si atoms. There are a spread of Ir–Si bond distances ranging from 2.48–2.58 Å. Si is bonded in a 9-coordinate geometry to five equivalent Dy and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on TbSiIr by Materials Project

TbIrSi crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Tb is bonded in a 11-coordinate geometry to six equivalent Ir and five equivalent Si atoms. There are a spread of Tb–Ir bond distances ranging from 2.99–3.32 Å. There are two shorter (2.97 Å) and three longer (3.02 Å) Tb–Si bond lengths. Ir is bonded in a 10-coordinate geometry to six equivalent Tb and four equivalent Si atoms. There are a spread of Ir–Si bond distances ranging from 2.48–2.59 Å. Si is bonded in a 9-coordinate geometry to five equivalent Tb and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on SrIn2Ir by Materials Project

SrIrIn2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Sr is bonded in a 1-coordinate geometry to three equivalent Ir and ten equivalent In atoms. There are one shorter (3.13 Å) and two longer (3.27 Å) Sr–Ir bond lengths. There are a spread of Sr–In bond distances ranging from 3.46–3.62 Å. Ir is bonded in a 9-coordinate geometry to three equivalent Sr and six equivalent In atoms. There are four shorter (2.80 Å) and two longer (2.85 Å) Ir–In bond lengths. In is bonded in a 3-coordinate geometry to five equivalent Sr and three equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on Gd(SiIr)2 by Materials Project

Gd(IrSi)2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Gd is bonded in a 8-coordinate geometry to eight equivalent Ir and eight equivalent Si atoms. All Gd–Ir bond lengths are 3.24 Å. All Gd–Si bond lengths are 3.15 Å. Ir is bonded to four equivalent Gd and four equivalent Si atoms to form a mixture of distorted corner, edge, and face-sharing IrGd4Si4 tetrahedra. All Ir–Si bond lengths are 2.42 Å. Si is bonded in a 9-coordinate geometry to four equivalent Gd, four equivalent Ir, and one Si atom. The Si–Si bond length is 2.46 Å.

36 MATERIALS SCIENCE↗

Materials Data on ErSiIr by Materials Project

ErIrSi crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Er is bonded in a 11-coordinate geometry to six equivalent Ir and five equivalent Si atoms. There are a spread of Er–Ir bond distances ranging from 3.01–3.23 Å. There are a spread of Er–Si bond distances ranging from 2.91–3.00 Å. Ir is bonded in a 10-coordinate geometry to six equivalent Er and four equivalent Si atoms. There are a spread of Ir–Si bond distances ranging from 2.48–2.60 Å. Si is bonded in a 9-coordinate geometry to five equivalent Er and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on NdIn2Ir by Materials Project

NdIrIn2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Nd is bonded in a 3-coordinate geometry to three equivalent Ir and ten equivalent In atoms. There are one shorter (3.00 Å) and two longer (3.12 Å) Nd–Ir bond lengths. There are a spread of Nd–In bond distances ranging from 3.37–3.53 Å. Ir is bonded in a 9-coordinate geometry to three equivalent Nd and six equivalent In atoms. There are two shorter (2.82 Å) and four longer (2.84 Å) Ir–In bond lengths. In is bonded in a 3-coordinate geometry to five equivalent Nd, three equivalent Ir, and four equivalent In atoms. There are a spread of In–In bond distances ranging from 3.13–3.22 Å.

36 MATERIALS SCIENCE↗

Materials Data on Eu(BIr)2 by Materials Project

Eu(IrB)2 is alpha Pu-derived structured and crystallizes in the orthorhombic Fddd space group. The structure is three-dimensional. Eu is bonded in a 10-coordinate geometry to eight equivalent Ir and six equivalent B atoms. There are four shorter (3.08 Å) and four longer (3.34 Å) Eu–Ir bond lengths. There are two shorter (3.04 Å) and four longer (3.16 Å) Eu–B bond lengths. Ir is bonded in a 4-coordinate geometry to four equivalent Eu and four equivalent B atoms. There are two shorter (2.10 Å) and two longer (2.17 Å) Ir–B bond lengths. B is bonded in a 4-coordinate geometry to three equivalent Eu and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on U(GeIr)2 by Materials Project

UIr2Ge2 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. U is bonded in a 8-coordinate geometry to eight equivalent Ir and eight equivalent Ge atoms. All U–Ir bond lengths are 3.33 Å. All U–Ge bond lengths are 3.17 Å. Ir is bonded to four equivalent U and four equivalent Ge atoms to form a mixture of distorted face, edge, and corner-sharing IrU4Ge4 tetrahedra. All Ir–Ge bond lengths are 2.48 Å. Ge is bonded in a 9-coordinate geometry to four equivalent U, four equivalent Ir, and one Ge atom. The Ge–Ge bond length is 2.48 Å.

36 MATERIALS SCIENCE↗

Materials Data on HoGeIr by Materials Project

HoIrGe crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ho is bonded in a 11-coordinate geometry to six equivalent Ir and five equivalent Ge atoms. There are a spread of Ho–Ir bond distances ranging from 3.03–3.29 Å. There are two shorter (2.98 Å) and three longer (3.02 Å) Ho–Ge bond lengths. Ir is bonded in a 10-coordinate geometry to six equivalent Ho and four equivalent Ge atoms. There are three shorter (2.56 Å) and one longer (2.63 Å) Ir–Ge bond lengths. Ge is bonded in a 9-coordinate geometry to five equivalent Ho and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on ErGeIr by Materials Project

ErIrGe crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Er is bonded in a 11-coordinate geometry to six equivalent Ir and five equivalent Ge atoms. There are a spread of Er–Ir bond distances ranging from 3.03–3.28 Å. There are a spread of Er–Ge bond distances ranging from 2.97–3.02 Å. Ir is bonded in a 10-coordinate geometry to six equivalent Er and four equivalent Ge atoms. There are a spread of Ir–Ge bond distances ranging from 2.55–2.62 Å. Ge is bonded in a 9-coordinate geometry to five equivalent Er and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on NbSiIr by Materials Project

NbIrSi crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Nb is bonded in a 11-coordinate geometry to six equivalent Ir and five equivalent Si atoms. There are a spread of Nb–Ir bond distances ranging from 2.94–2.99 Å. There are a spread of Nb–Si bond distances ranging from 2.70–2.76 Å. Ir is bonded in a 4-coordinate geometry to six equivalent Nb and four equivalent Si atoms. There are a spread of Ir–Si bond distances ranging from 2.42–2.47 Å. Si is bonded in a 9-coordinate geometry to five equivalent Nb and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on CeIn2Ir by Materials Project

CeIrIn2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Ce is bonded in a 1-coordinate geometry to three equivalent Ir and ten equivalent In atoms. There are one shorter (2.88 Å) and two longer (3.09 Å) Ce–Ir bond lengths. There are a spread of Ce–In bond distances ranging from 3.34–3.48 Å. Ir is bonded in a 9-coordinate geometry to three equivalent Ce and six equivalent In atoms. All Ir–In bond lengths are 2.84 Å. In is bonded in a 3-coordinate geometry to five equivalent Ce and three equivalent Ir atoms.

36 MATERIALS SCIENCE↗

Materials Data on TaSiIr by Materials Project

TaIrSi crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ta is bonded in a 11-coordinate geometry to six equivalent Ir and five equivalent Si atoms. There are a spread of Ta–Ir bond distances ranging from 2.92–2.99 Å. There are a spread of Ta–Si bond distances ranging from 2.67–2.77 Å. Ir is bonded in a 4-coordinate geometry to six equivalent Ta and four equivalent Si atoms. There are a spread of Ir–Si bond distances ranging from 2.41–2.47 Å. Si is bonded in a 9-coordinate geometry to five equivalent Ta and four equivalent Ir atoms.

36 MATERIALS SCIENCE↗