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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 1,405 records · Page 78
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DOE OSTI2020

Materials Data on HfZnPt2 by Materials Project

HfPt2Zn 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 Pt atoms. All Hf–Pt bond lengths are 2.79 Å. Pt is bonded in a body-centered cubic geometry to four equivalent Hf and four equivalent Zn atoms. All Pt–Zn bond lengths are 2.79 Å. Zn is bonded in a body-centered cubic geometry to eight equivalent Pt atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Hf3Pb by Materials Project

Hf3Pb is Uranium Silicide-like structured and crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Hf is bonded in a distorted see-saw-like geometry to four equivalent Pb atoms. There are two shorter (3.17 Å) and two longer (3.18 Å) Hf–Pb bond lengths. Pb is bonded to twelve equivalent Hf atoms to form a mixture of corner and face-sharing PbHf12 cuboctahedra.

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DOE OSTI2020

Materials Data on Hf2Si by Materials Project

Hf2Si is Khatyrkite structured and crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. Hf is bonded in a 4-coordinate geometry to four equivalent Si atoms. All Hf–Si bond lengths are 2.80 Å. Si is bonded in a 10-coordinate geometry to eight equivalent Hf and two equivalent Si atoms. Both Si–Si bond lengths are 2.60 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Hf2Ge by Materials Project

Hf2Ge is Khatyrkite structured and crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. Hf is bonded in a 4-coordinate geometry to four equivalent Ge atoms. All Hf–Ge bond lengths are 2.84 Å. Ge is bonded in a 10-coordinate geometry to eight equivalent Hf and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.65 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfPd3 by Materials Project

Pd3Hf is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Hf is bonded to twelve equivalent Pd atoms to form a mixture of corner and face-sharing HfPd12 cuboctahedra. All Hf–Pd bond lengths are 2.84 Å. Pd is bonded in a distorted square co-planar geometry to four equivalent Hf atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfRu3 by Materials Project

HfRu3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Hf is bonded to twelve equivalent Ru atoms to form a mixture of corner and face-sharing HfRu12 cuboctahedra. All Hf–Ru bond lengths are 2.80 Å. Ru is bonded in a distorted square co-planar geometry to four equivalent Hf atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfPt by Materials Project

PtHf crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Hf is bonded in a 7-coordinate geometry to seven equivalent Pt atoms. There are a spread of Hf–Pt bond distances ranging from 2.74–2.97 Å. Pt is bonded in a 7-coordinate geometry to seven equivalent Hf atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfPd by Materials Project

HfPd is alpha-derived structured and crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Hf is bonded in a 7-coordinate geometry to seven equivalent Pd atoms. There are a spread of Hf–Pd bond distances ranging from 2.77–2.91 Å. Pd is bonded in a 7-coordinate geometry to seven equivalent Hf atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfAl3 by Materials Project

Al3Hf is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Hf is bonded to twelve equivalent Al atoms to form HfAl12 cuboctahedra that share corners with twelve equivalent HfAl12 cuboctahedra, edges with twenty-four equivalent AlHf4Al8 cuboctahedra, faces with six equivalent HfAl12 cuboctahedra, and faces with twelve equivalent AlHf4Al8 cuboctahedra. All Hf–Al bond lengths are 2.89 Å. Al is bonded to four equivalent Hf and eight equivalent Al atoms to form AlHf4Al8 cuboctahedra that share corners with twelve equivalent AlHf4Al8 cuboctahedra, edges with eight equivalent HfAl12 cuboctahedra, edges with sixteen equivalent AlHf4Al8 cuboctahedra, faces with four equivalent HfAl12 cuboctahedra, and faces with fourteen equivalent AlHf4Al8 cuboctahedra. All Al–Al bond lengths are 2.89 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfAu by Materials Project

AuHf is gamma CuTi structured and crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Hf is bonded in a 10-coordinate geometry to six equivalent Au atoms. There are a spread of Hf–Au bond distances ranging from 2.86–3.30 Å. Au is bonded in a 10-coordinate geometry to six equivalent Hf and four equivalent Au atoms. All Au–Au bond lengths are 2.98 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfIr by Materials Project

HfIr is alpha-derived structured and crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. Hf is bonded in a 7-coordinate geometry to seven equivalent Ir atoms. There are a spread of Hf–Ir bond distances ranging from 2.69–2.88 Å. Ir is bonded in a 7-coordinate geometry to seven equivalent Hf atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Hf2Tl by Materials Project

Hf2Tl crystallizes in the tetragonal I4/mmm space group. The structure is two-dimensional and consists of two Hf2Tl sheets oriented in the (0, 0, 1) direction. Hf is bonded in a 8-coordinate geometry to four equivalent Tl atoms. All Hf–Tl bond lengths are 3.09 Å. Tl is bonded in a body-centered cubic geometry to eight equivalent Hf atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfZn by Materials Project

HfZn is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Hf is bonded in a body-centered cubic geometry to eight equivalent Zn atoms. All Hf–Zn bond lengths are 2.86 Å. Zn is bonded in a body-centered cubic geometry to eight equivalent Hf atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfBRh3 by Materials Project

HfRh3B is (Cubic) Perovskite structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Hf is bonded to twelve equivalent Rh atoms to form HfRh12 cuboctahedra that share corners with twelve equivalent HfRh12 cuboctahedra, faces with six equivalent HfRh12 cuboctahedra, and faces with eight equivalent BRh6 octahedra. All Hf–Rh bond lengths are 2.92 Å. Rh is bonded to four equivalent Hf and two equivalent B atoms to form a mixture of distorted corner, edge, and face-sharing RhHf4B2 octahedra. The corner-sharing octahedra tilt angles range from 0–60°. Both Rh–B bond lengths are 2.07 Å. B is bonded to six equivalent Rh atoms to form BRh6 octahedra that share corners with six equivalent BRh6 octahedra and faces with eight equivalent HfRh12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfIr by Materials Project

HfIr is beta-prime cadmium gold structured and crystallizes in the orthorhombic Pmma space group. The structure is three-dimensional. Hf is bonded in a distorted body-centered cubic geometry to eight equivalent Ir atoms. There are six shorter (2.81 Å) and two longer (3.02 Å) Hf–Ir bond lengths. Ir is bonded in a distorted body-centered cubic geometry to eight equivalent Hf atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfPt3 by Materials Project

HfPt3 is Uranium Silicide structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Hf is bonded to twelve equivalent Pt atoms to form a mixture of face and corner-sharing HfPt12 cuboctahedra. All Hf–Pt bond lengths are 2.85 Å. Pt is bonded in a distorted square co-planar geometry to four equivalent Hf atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfNi by Materials Project

HfNi crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Hf is bonded in a 7-coordinate geometry to seven equivalent Ni atoms. There are a spread of Hf–Ni bond distances ranging from 2.66–2.72 Å. Ni is bonded in a 7-coordinate geometry to seven equivalent Hf atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfBe by Materials Project

BeHf is delta Molybdenum Boride-like structured and crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Be is bonded in a 9-coordinate geometry to two equivalent Be and seven equivalent Hf atoms. Both Be–Be bond lengths are 2.24 Å. There are a spread of Be–Hf bond distances ranging from 2.66–2.89 Å. Hf is bonded in a 7-coordinate geometry to seven equivalent Be atoms.

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