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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 577 records · Page 32
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DOE OSTI2020

Materials Data on MnTc2As by Materials Project

Tc2MnAs is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Tc+0.50+ is bonded to four equivalent As3- atoms to form a mixture of corner and edge-sharing TcAs4 tetrahedra. All Tc–As bond lengths are 2.60 Å. Mn2+ is bonded in a 6-coordinate geometry to six equivalent As3- atoms. All Mn–As bond lengths are 3.00 Å. As3- is bonded in a distorted body-centered cubic geometry to eight equivalent Tc+0.50+ and six equivalent Mn2+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Y2ZnTc by Materials Project

Y2TcZn crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Y2TcZn ribbons oriented in the (1, 0, 0) direction. Y is bonded in a linear geometry to one Tc and one Zn atom. The Y–Tc bond length is 2.31 Å. The Y–Zn bond length is 3.22 Å. Tc is bonded in a linear geometry to two equivalent Y atoms. Zn is bonded in a linear geometry to two equivalent Y atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on MnNb2Tc by Materials Project

Nb2TcMn crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Nb2TcMn ribbons oriented in the (1, 0, 0) direction. Nb is bonded in a linear geometry to one Tc and one Mn atom. The Nb–Tc bond length is 2.22 Å. The Nb–Mn bond length is 2.11 Å. Tc is bonded in a linear geometry to two equivalent Nb atoms. Mn is bonded in a linear geometry to two equivalent Nb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Hf2TcIr by Materials Project

Hf2TcIr 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 four equivalent Tc and four equivalent Ir atoms. All Hf–Tc bond lengths are 2.83 Å. All Hf–Ir bond lengths are 2.83 Å. Tc is bonded in a body-centered cubic geometry to eight equivalent Hf atoms. Ir is bonded in a body-centered cubic geometry to eight equivalent Hf atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ta2CrTc by Materials Project

Ta2CrTc crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Ta2CrTc ribbons oriented in the (1, 0, 0) direction. Ta is bonded in a linear geometry to one Cr and one Tc atom. The Ta–Cr bond length is 2.66 Å. The Ta–Tc bond length is 2.25 Å. Cr is bonded in a linear geometry to two equivalent Ta atoms. Tc is bonded in a linear geometry to two equivalent Ta atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Hf2CuTc by Materials Project

Hf2TcCu 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 four equivalent Tc and four equivalent Cu atoms. All Hf–Tc bond lengths are 2.82 Å. All Hf–Cu bond lengths are 2.82 Å. Tc is bonded in a body-centered cubic geometry to eight equivalent Hf atoms. Cu is bonded in a body-centered cubic geometry to eight equivalent Hf atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Nb2ReTc by Materials Project

Nb2ReTc is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Nb is bonded in a body-centered cubic geometry to four equivalent Re and four equivalent Tc atoms. All Nb–Re bond lengths are 2.77 Å. All Nb–Tc bond lengths are 2.77 Å. Re is bonded in a body-centered cubic geometry to eight equivalent Nb atoms. Tc is bonded in a body-centered cubic geometry to eight equivalent Nb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Sc2InTc by Materials Project

Sc2TcIn crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Sc2TcIn ribbons oriented in the (1, 0, 0) direction. Sc is bonded in a linear geometry to one Tc and one In atom. The Sc–Tc bond length is 2.20 Å. The Sc–In bond length is 2.94 Å. Tc is bonded in a linear geometry to two equivalent Sc atoms. In is bonded in a linear geometry to two equivalent Sc atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Zr2TcNi by Materials Project

Zr2TcNi crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Zr2TcNi ribbons oriented in the (1, 0, 0) direction. Zr is bonded in a linear geometry to one Tc and one Ni atom. The Zr–Tc bond length is 2.20 Å. The Zr–Ni bond length is 2.29 Å. Tc is bonded in a linear geometry to two equivalent Zr atoms. Ni is bonded in a linear geometry to two equivalent Zr atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Er2CuTc by Materials Project

Er2TcCu is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Er is bonded in a body-centered cubic geometry to four equivalent Tc and four equivalent Cu atoms. All Er–Tc bond lengths are 2.95 Å. All Er–Cu bond lengths are 2.95 Å. Tc is bonded in a body-centered cubic geometry to eight equivalent Er atoms. Cu is bonded in a body-centered cubic geometry to eight equivalent Er atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Nb2Tc by Materials Project

Nb2Tc crystallizes in the orthorhombic Fmmm space group. The structure is one-dimensional and consists of four Nb2Tc ribbons oriented in the (1, 0, 0) direction. Nb is bonded in a 2-coordinate geometry to two equivalent Tc atoms. Both Nb–Tc bond lengths are 2.71 Å. Tc is bonded in a 4-coordinate geometry to four equivalent Nb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Al2CrTc by Materials Project

CrTcAl2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two CrTcAl2 ribbons oriented in the (1, 0, 0) direction. Cr is bonded in a linear geometry to two equivalent Al atoms. Both Cr–Al bond lengths are 2.69 Å. Tc is bonded in a linear geometry to two equivalent Al atoms. Both Tc–Al bond lengths are 2.45 Å. Al is bonded in a linear geometry to one Cr and one Tc atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti2GaTc by Materials Project

Ti2TcGa 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 four equivalent Tc and four equivalent Ga atoms. All Ti–Tc bond lengths are 2.71 Å. All Ti–Ga bond lengths are 2.71 Å. Tc is bonded in a body-centered cubic geometry to eight equivalent Ti atoms. Ga is bonded in a body-centered cubic geometry to eight equivalent Ti atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Zr2TcMo by Materials Project

Zr2MoTc crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Zr2MoTc ribbons oriented in the (1, 0, 0) direction. Zr is bonded in a linear geometry to one Mo and one Tc atom. The Zr–Mo bond length is 2.40 Å. The Zr–Tc bond length is 2.31 Å. Mo is bonded in a linear geometry to two equivalent Zr atoms. Tc is bonded in a linear geometry to two equivalent Zr atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ReSiTc2 by Materials Project

ReTc2Si is Zincblende, Sphalerite structured and crystallizes in the orthorhombic Immm space group. The structure is zero-dimensional and consists of two rhenium molecules and two Tc2Si clusters. In each Tc2Si cluster, Tc+0.50+ is bonded in a single-bond geometry to one Si4- atom. The Tc–Si bond length is 2.31 Å. Si4- is bonded in a linear geometry to two equivalent Tc+0.50+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ga2TcPd by Materials Project

TcPdGa2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two TcPdGa2 ribbons oriented in the (1, 0, 0) direction. Tc is bonded in a linear geometry to two equivalent Ga atoms. Both Tc–Ga bond lengths are 2.43 Å. Pd is bonded in a linear geometry to two equivalent Ga atoms. Both Pd–Ga bond lengths are 2.42 Å. Ga is bonded in a linear geometry to one Tc and one Pd atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NdTc3 by Materials Project

NdTc3 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Nd3+ is bonded in a 12-coordinate geometry to twelve equivalent Tc1- atoms. There are six shorter (3.15 Å) and six longer (3.39 Å) Nd–Tc bond lengths. Tc1- is bonded in a 10-coordinate geometry to four equivalent Nd3+ and six equivalent Tc1- atoms. There are four shorter (2.59 Å) and two longer (2.65 Å) Tc–Tc bond lengths.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti2VTc by Materials Project

Ti2VTc crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Ti2VTc ribbons oriented in the (1, 0, 0) direction. Ti is bonded in a linear geometry to one V and one Tc atom. The Ti–V bond length is 2.70 Å. The Ti–Tc bond length is 2.14 Å. V is bonded in a linear geometry to two equivalent Ti atoms. Tc is bonded in a linear geometry to two equivalent Ti atoms.

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