Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “TC”

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 937 records · Page 52
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on TiTc2Sn by Materials Project

TiTc2Sn crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two TiTc2Sn ribbons oriented in the (1, 0, 0) direction. Ti4+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both Ti–Tc bond lengths are 2.15 Å. Tc3- is bonded in a linear geometry to one Ti4+ and one Sn2+ atom. The Tc–Sn bond length is 2.61 Å. Sn2+ is bonded in a linear geometry to two equivalent Tc3- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ZrVTc2 by Materials Project

ZrVTc2 crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two ZrVTc2 ribbons oriented in the (1, 0, 0) direction. Zr4+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both Zr–Tc bond lengths are 2.34 Å. V2+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both V–Tc bond lengths are 2.17 Å. Tc3- is bonded in a linear geometry to one Zr4+ and one V2+ atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TiGaTc2 by Materials Project

TiTc2Ga crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two TiTc2Ga ribbons oriented in the (1, 0, 0) direction. Ti3+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both Ti–Tc bond lengths are 2.17 Å. Tc3- is bonded in a linear geometry to one Ti3+ and one Ga3+ atom. The Tc–Ga bond length is 2.51 Å. Ga3+ is bonded in a linear geometry to two equivalent Tc3- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ZrAlTc2 by Materials Project

ZrTc2Al crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two ZrTc2Al ribbons oriented in the (1, 0, 0) direction. Zr3+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both Zr–Tc bond lengths are 2.33 Å. Tc3- is bonded in a linear geometry to one Zr3+ and one Al3+ atom. The Tc–Al bond length is 2.51 Å. Al3+ is bonded in a linear geometry to two equivalent Tc3- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on GaTc2Ge by Materials Project

Tc2GaGe crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Tc2GaGe ribbons oriented in the (1, 0, 0) direction. Tc3- is bonded in a linear geometry to one Ga2+ and one Ge4+ atom. The Tc–Ga bond length is 2.51 Å. The Tc–Ge bond length is 2.38 Å. Ga2+ is bonded in a linear geometry to two equivalent Tc3- atoms. Ge4+ is bonded in a linear geometry to two equivalent Tc3- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Tc3B by Materials Project

Tc3B crystallizes in the orthorhombic Cmcm space group. The structure is two-dimensional and consists of two Tc3B sheets oriented in the (0, 1, 0) direction. there are two inequivalent Tc1- sites. In the first Tc1- site, Tc1- is bonded in a 2-coordinate geometry to three equivalent B3+ atoms. There are two shorter (2.24 Å) and one longer (2.53 Å) Tc–B bond lengths. In the second Tc1- site, Tc1- is bonded in a distorted L-shaped geometry to two equivalent B3+ atoms. Both Tc–B bond lengths are 2.22 Å. B3+ is bonded in a 6-coordinate geometry to eight Tc1- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TiTc2Sn by Materials Project

TiTc2Sn is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Ti4+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms. All Ti–Tc bond lengths are 2.76 Å. Tc3- is bonded in a body-centered cubic geometry to four equivalent Ti4+ and four equivalent Sn2+ atoms. All Tc–Sn bond lengths are 2.76 Å. Sn2+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AlFeTc2 by Materials Project

Tc2FeAl crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Tc2FeAl ribbons oriented in the (1, 0, 0) direction. Tc3- is bonded in a linear geometry to one Fe3+ and one Al3+ atom. The Tc–Fe bond length is 2.30 Å. The Tc–Al bond length is 2.41 Å. Fe3+ is bonded in a linear geometry to two equivalent Tc3- atoms. Al3+ is bonded in a linear geometry to two equivalent Tc3- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AlTc2Sb by Materials Project

Tc2AlSb crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two Tc2AlSb ribbons oriented in the (1, 0, 0) direction. Tc3- is bonded in a linear geometry to one Al3+ and one Sb3+ atom. The Tc–Al bond length is 2.49 Å. The Tc–Sb bond length is 2.53 Å. Al3+ is bonded in a linear geometry to two equivalent Tc3- atoms. Sb3+ is bonded in a linear geometry to two equivalent Tc3- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TaAlTc2 by Materials Project

TaTc2Al crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two TaTc2Al ribbons oriented in the (1, 0, 0) direction. Ta3+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both Ta–Tc bond lengths are 2.24 Å. Tc3- is bonded in a linear geometry to one Ta3+ and one Al3+ atom. The Tc–Al bond length is 2.51 Å. Al3+ is bonded in a linear geometry to two equivalent Tc3- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on AlTc2W by Materials Project

WTc2Al crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two WTc2Al ribbons oriented in the (1, 0, 0) direction. W3+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both W–Tc bond lengths are 2.21 Å. Tc3- is bonded in a linear geometry to one W3+ and one Al3+ atom. The Tc–Al bond length is 2.51 Å. Al3+ is bonded in a linear geometry to two equivalent Tc3- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TcI4 by Materials Project

TcI4 crystallizes in the monoclinic P2_1/c space group. The structure is one-dimensional and consists of four TcI4 ribbons oriented in the (0, 1, 0) direction. there are two inequivalent Tc4+ sites. In the first Tc4+ site, Tc4+ is bonded to six I1- atoms to form edge-sharing TcI6 octahedra. There are a spread of Tc–I bond distances ranging from 2.63–2.85 Å. In the second Tc4+ site, Tc4+ is bonded to six I1- atoms to form edge-sharing TcI6 octahedra. There are a spread of Tc–I bond distances ranging from 2.64–2.86 Å. There are eight inequivalent I1- sites. In the first I1- site, I1- is bonded in a single-bond geometry to one Tc4+ atom. In the second I1- site, I1- is bonded in a single-bond geometry to one Tc4+ atom. In the third I1- site, I1- is bonded in a water-like geometry to two Tc4+ atoms. In the fourth I1- site, I1- is bonded in a water-like geometry to two Tc4+ atoms. In the fifth I1- site, I1- is bonded in a single-bond geometry to one Tc4+ atom. In the sixth I1- site, I1- is bonded in a single-bond geometry to one Tc4+ atom. In the seventh I1- site, I1- is bonded in a water-like geometry to two Tc4+ atoms. In the eighth I1- site, I1- is bonded in a water-like geometry to two Tc4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on GaReTc2 by Materials Project

ReTc2Ga crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two ReTc2Ga ribbons oriented in the (1, 0, 0) direction. Re3+ is bonded in a linear geometry to two equivalent Tc3- atoms. Both Re–Tc bond lengths are 2.19 Å. Tc3- is bonded in a linear geometry to one Re3+ and one Ga3+ atom. The Tc–Ga bond length is 2.50 Å. Ga3+ is bonded in a linear geometry to two equivalent Tc3- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NbTc2Sn by Materials Project

NbTc2Sn is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Nb2+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms. All Nb–Tc bond lengths are 2.79 Å. Tc3- is bonded in a body-centered cubic geometry to four equivalent Nb2+ and four equivalent Sn4+ atoms. All Tc–Sn bond lengths are 2.79 Å. Sn4+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on NbGaTc2 by Materials Project

NbTc2Ga is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Nb3+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms. All Nb–Tc bond lengths are 2.72 Å. Tc3- is bonded in a body-centered cubic geometry to four equivalent Nb3+ and four equivalent Ga3+ atoms. All Tc–Ga bond lengths are 2.72 Å. Ga3+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on TcC5IO5 by Materials Project

TcC5O5I is alpha U structured and crystallizes in the orthorhombic Cmcm space group. The structure is zero-dimensional and consists of four TcC5O5I clusters. Tc1- is bonded in a distorted square pyramidal geometry to five C+2.40+ and one I1- atom. There is one shorter (1.94 Å) and four longer (2.01 Å) Tc–C bond length. The Tc–I bond length is 2.86 Å. There are two inequivalent C+2.40+ sites. In the first C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Tc1- and one O2- atom. The C–O bond length is 1.16 Å. In the second C+2.40+ site, C+2.40+ is bonded in a linear geometry to one Tc1- and one O2- atom. The C–O bond length is 1.15 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one C+2.40+ atom. I1- is bonded in a single-bond geometry to one Tc1- atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on MnTc2W by Materials Project

WTc2Mn crystallizes in the orthorhombic Immm space group. The structure is one-dimensional and consists of two WTc2Mn ribbons oriented in the (1, 0, 0) direction. W2+ is bonded in a linear geometry to two equivalent Tc2- atoms. Both W–Tc bond lengths are 2.24 Å. Tc2- is bonded in a linear geometry to one W2+ and one Mn2+ atom. The Tc–Mn bond length is 2.70 Å. Mn2+ is bonded in a linear geometry to two equivalent Tc2- atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HoPaTc2 by Materials Project

PaHoTc2 is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Pa3+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms. All Pa–Tc bond lengths are 2.96 Å. Ho3+ is bonded in a body-centered cubic geometry to eight equivalent Tc3- atoms. All Ho–Tc bond lengths are 2.96 Å. Tc3- is bonded in a body-centered cubic geometry to four equivalent Pa3+ and four equivalent Ho3+ atoms.

36 MATERIALS SCIENCE↗