Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “Deltas”

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 523 records · Page 29
All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on ErGePd2 by Materials Project

ErPd2Ge is delta Molybdenum Boride-derived structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Er is bonded in a 11-coordinate geometry to eight equivalent Pd and three equivalent Ge atoms. There are a spread of Er–Pd bond distances ranging from 3.04–3.16 Å. There are a spread of Er–Ge bond distances ranging from 2.98–3.04 Å. Pd is bonded in a 12-coordinate geometry to four equivalent Er and three equivalent Ge atoms. There are a spread of Pd–Ge bond distances ranging from 2.53–2.66 Å. Ge is bonded in a 9-coordinate geometry to three equivalent Er and six equivalent Pd atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Hf3(NbGe2)2 by Materials Project

Hf3(NbGe2)2 is delta Molybdenum Boride-derived structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Hf sites. In the first Hf site, Hf is bonded in a 7-coordinate geometry to seven Ge atoms. There are a spread of Hf–Ge bond distances ranging from 2.80–3.01 Å. In the second Hf site, Hf is bonded in a 6-coordinate geometry to six Ge atoms. There are a spread of Hf–Ge bond distances ranging from 2.71–2.83 Å. Nb is bonded in a 6-coordinate geometry to six Ge atoms. There are a spread of Nb–Ge bond distances ranging from 2.59–2.80 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to four Hf, four equivalent Nb, and one Ge atom. The Ge–Ge bond length is 2.58 Å. In the second Ge site, Ge is bonded in a 9-coordinate geometry to five Hf, three equivalent Nb, and one Ge atom. The Ge–Ge bond length is 2.78 Å. In the third Ge site, Ge is bonded in a 9-coordinate geometry to six Hf, two equivalent Nb, and one Ge atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on YNiSn2 by Materials Project

YNiSn2 is delta Molybdenum Boride-derived structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Y sites. In the first Y site, Y is bonded in a 8-coordinate geometry to six Ni and eight Sn atoms. There are a spread of Y–Ni bond distances ranging from 3.27–3.46 Å. There are a spread of Y–Sn bond distances ranging from 3.12–3.20 Å. In the second Y site, Y is bonded in a 11-coordinate geometry to two equivalent Ni and nine Sn atoms. Both Y–Ni bond lengths are 3.11 Å. There are a spread of Y–Sn bond distances ranging from 3.16–3.52 Å. In the third Y site, Y is bonded in a 1-coordinate geometry to four Ni and nine Sn atoms. There are two shorter (3.17 Å) and two longer (3.28 Å) Y–Ni bond lengths. There are a spread of Y–Sn bond distances ranging from 3.17–3.58 Å. There are three inequivalent Ni sites. In the first Ni site, Ni is bonded in a 10-coordinate geometry to five Y and five Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.53–2.75 Å. In the second Ni site, Ni is bonded in a 7-coordinate geometry to three Y and five Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.50–2.77 Å. In the third Ni site, Ni is bonded in a 10-coordinate geometry to four Y and five Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.53–2.66 Å. There are six inequivalent Sn sites. In the first Sn site, Sn is bonded in a 8-coordinate geometry to four Y, three equivalent Ni, and one Sn atom. The Sn–Sn bond length is 3.01 Å. In the second Sn site, Sn is bonded in a 9-coordinate geometry to six Y and three Ni atoms. In the third Sn site, Sn is bonded in a 6-coordinate geometry to four Y and two Ni atoms. In the fourth Sn site, Sn is bonded in a 6-coordinate geometry to four Y and three Ni atoms. In the fifth Sn site, Sn is bonded in a 8-coordinate geometry to four Y, three Ni, and one Sn atom. In the sixth Sn site, Sn is bonded in a 2-coordinate geometry to four Y and one Ni atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on HfSiMo by Materials Project

MoSiHf is delta Molybdenum Boride-derived structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Hf is bonded in a 9-coordinate geometry to four equivalent Mo and five equivalent Si atoms. There are two shorter (2.97 Å) and two longer (3.08 Å) Hf–Mo bond lengths. There are a spread of Hf–Si bond distances ranging from 2.74–2.91 Å. Mo is bonded in a 12-coordinate geometry to four equivalent Hf and four equivalent Si atoms. There are a spread of Mo–Si bond distances ranging from 2.52–2.69 Å. Si is bonded in a 9-coordinate geometry to five equivalent Hf and four equivalent Mo atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrAl by Materials Project

AlSr is delta Molybdenum Boride-like structured and crystallizes in the cubic P2_13 space group. The structure is three-dimensional. there are four inequivalent Sr sites. In the first Sr site, Sr is bonded in a 7-coordinate geometry to seven Al atoms. There are a spread of Sr–Al bond distances ranging from 3.36–3.61 Å. In the second Sr site, Sr is bonded in a 1-coordinate geometry to seven Al atoms. There are a spread of Sr–Al bond distances ranging from 3.11–3.64 Å. In the third Sr site, Sr is bonded in a 6-coordinate geometry to six Al atoms. There are three shorter (3.43 Å) and three longer (3.44 Å) Sr–Al bond lengths. In the fourth Sr site, Sr is bonded in a 6-coordinate geometry to six Al atoms. There are a spread of Sr–Al bond distances ranging from 3.31–3.74 Å. There are four inequivalent Al sites. In the first Al site, Al is bonded in a 7-coordinate geometry to seven Sr atoms. In the second Al site, Al is bonded in a 9-coordinate geometry to six Sr and three equivalent Al atoms. All Al–Al bond lengths are 2.71 Å. In the third Al site, Al is bonded in a 9-coordinate geometry to seven Sr and two equivalent Al atoms. Both Al–Al bond lengths are 2.85 Å. In the fourth Al site, Al is bonded in a 9-coordinate geometry to six Sr and three Al atoms. Both Al–Al bond lengths are 2.73 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Zr2CoP by Materials Project

Zr2CoP is delta Molybdenum Boride-derived structured and crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are two inequivalent Zr sites. In the first Zr site, Zr is bonded in a 7-coordinate geometry to four equivalent Co and three equivalent P atoms. There are a spread of Zr–Co bond distances ranging from 2.65–2.86 Å. There are two shorter (2.76 Å) and one longer (2.81 Å) Zr–P bond lengths. In the second Zr site, Zr is bonded in a 7-coordinate geometry to three equivalent Co and four equivalent P atoms. There are two shorter (2.69 Å) and one longer (2.88 Å) Zr–Co bond lengths. There are a spread of Zr–P bond distances ranging from 2.74–2.80 Å. Co is bonded in a 9-coordinate geometry to seven Zr and two equivalent P atoms. Both Co–P bond lengths are 2.32 Å. P is bonded in a 9-coordinate geometry to seven Zr and two equivalent Co atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Zr2NiP by Materials Project

Zr2NiP is delta Molybdenum Boride-derived structured and crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are two inequivalent Zr sites. In the first Zr site, Zr is bonded in a 7-coordinate geometry to three equivalent Ni and four equivalent P atoms. There are two shorter (2.73 Å) and one longer (2.88 Å) Zr–Ni bond lengths. There are a spread of Zr–P bond distances ranging from 2.72–2.84 Å. In the second Zr site, Zr is bonded in a 7-coordinate geometry to four equivalent Ni and three equivalent P atoms. There are a spread of Zr–Ni bond distances ranging from 2.69–2.83 Å. There are two shorter (2.74 Å) and one longer (2.85 Å) Zr–P bond lengths. Ni is bonded in a 9-coordinate geometry to seven Zr and two equivalent P atoms. Both Ni–P bond lengths are 2.31 Å. P is bonded in a 9-coordinate geometry to seven Zr and two equivalent Ni atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Hf2CoP by Materials Project

Hf2CoP is delta Molybdenum Boride-derived structured and crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are two inequivalent Hf sites. In the first Hf site, Hf is bonded in a 7-coordinate geometry to four equivalent Co and three equivalent P atoms. There are a spread of Hf–Co bond distances ranging from 2.63–2.86 Å. There are two shorter (2.73 Å) and one longer (2.80 Å) Hf–P bond lengths. In the second Hf site, Hf is bonded in a 7-coordinate geometry to three equivalent Co and four equivalent P atoms. There are two shorter (2.65 Å) and one longer (2.85 Å) Hf–Co bond lengths. There are three shorter (2.71 Å) and one longer (2.78 Å) Hf–P bond lengths. Co is bonded in a 9-coordinate geometry to seven Hf and two equivalent P atoms. Both Co–P bond lengths are 2.31 Å. P is bonded in a 9-coordinate geometry to seven Hf and two equivalent Co atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on ZrGa by Materials Project

ZrGa is delta Molybdenum Boride structured and crystallizes in the tetragonal I4_1/amd space group. The structure is three-dimensional. Zr is bonded in a 7-coordinate geometry to seven equivalent Ga atoms. There are five shorter (2.83 Å) and two longer (3.02 Å) Zr–Ga bond lengths. Ga is bonded in a 9-coordinate geometry to seven equivalent Zr and two equivalent Ga atoms. Both Ga–Ga bond lengths are 2.55 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Zr2Nb3Ge4 by Materials Project

Zr2Nb3Ge4 is delta Molybdenum Boride-derived structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Zr is bonded in a 6-coordinate geometry to two equivalent Nb and six Ge atoms. There are one shorter (3.04 Å) and one longer (3.11 Å) Zr–Nb bond lengths. There are a spread of Zr–Ge bond distances ranging from 2.63–2.85 Å. There are two inequivalent Nb sites. In the first Nb site, Nb is bonded in a 7-coordinate geometry to seven Ge atoms. There are a spread of Nb–Ge bond distances ranging from 2.73–3.12 Å. In the second Nb site, Nb is bonded in a 6-coordinate geometry to four equivalent Zr and six Ge atoms. There are a spread of Nb–Ge bond distances ranging from 2.61–2.93 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 9-coordinate geometry to two equivalent Zr, six Nb, and one Ge atom. The Ge–Ge bond length is 2.60 Å. In the second Ge site, Ge is bonded in a 9-coordinate geometry to four equivalent Zr, four Nb, and one Ge atom. In the third Ge site, Ge is bonded in a 7-coordinate geometry to three equivalent Zr and five Nb atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ti3Ni4 by Materials Project

Ni4Ti3 is delta Molybdenum Boride-like structured and crystallizes in the trigonal R-3 space group. The structure is three-dimensional. Ti is bonded in a 9-coordinate geometry to nine Ni atoms. There are a spread of Ti–Ni bond distances ranging from 2.44–2.72 Å. There are three inequivalent Ni sites. In the first Ni site, Ni is bonded in a 6-coordinate geometry to six equivalent Ti and eight Ni atoms. There are two shorter (2.52 Å) and six longer (2.92 Å) Ni–Ni bond lengths. In the second Ni site, Ni is bonded in a 8-coordinate geometry to six equivalent Ti and two equivalent Ni atoms. In the third Ni site, Ni is bonded in a 7-coordinate geometry to seven equivalent Ti and one Ni atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Hf4NbGe4 by Materials Project

Hf4NbGe4 is delta Molybdenum Boride-derived structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Hf sites. In the first Hf site, Hf is bonded in a 6-coordinate geometry to six Ge atoms. There are a spread of Hf–Ge bond distances ranging from 2.64–2.82 Å. In the second Hf site, Hf is bonded in a 7-coordinate geometry to seven Ge atoms. There are a spread of Hf–Ge bond distances ranging from 2.79–3.11 Å. Nb is bonded in a 6-coordinate geometry to six Ge atoms. There are a spread of Nb–Ge bond distances ranging from 2.69–2.88 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 8-coordinate geometry to seven Hf and one Nb atom. In the second Ge site, Ge is bonded in a 9-coordinate geometry to six Hf, two equivalent Nb, and one Ge atom. The Ge–Ge bond length is 2.61 Å. In the third Ge site, Ge is bonded in a 9-coordinate geometry to six Hf, two equivalent Nb, and one Ge atom.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Mg3Al8FeSi6 by Materials Project

Al8Mg3FeSi6 is delta Molybdenum Boride-derived structured and crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Mg is bonded in a 7-coordinate geometry to five Al and two equivalent Si atoms. There are one shorter (2.91 Å) and four longer (2.96 Å) Mg–Al bond lengths. Both Mg–Si bond lengths are 3.01 Å. Fe is bonded in a 9-coordinate geometry to three equivalent Al and six equivalent Si atoms. All Fe–Al bond lengths are 2.41 Å. All Fe–Si bond lengths are 2.41 Å. There are three inequivalent Al sites. In the first Al site, Al is bonded in a 3-coordinate geometry to three equivalent Mg, three equivalent Al, and three equivalent Si atoms. All Al–Al bond lengths are 2.72 Å. All Al–Si bond lengths are 2.62 Å. In the second Al site, Al is bonded in a 1-coordinate geometry to one Fe, four equivalent Al, and four equivalent Si atoms. All Al–Si bond lengths are 2.77 Å. In the third Al site, Al is bonded in a 9-coordinate geometry to three equivalent Mg and six equivalent Si atoms. All Al–Si bond lengths are 2.62 Å. Si is bonded in a 7-coordinate geometry to one Mg, one Fe, and five Al atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on DyNiSn2 by Materials Project

DyNiSn2 is delta Molybdenum Boride-derived structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Dy sites. In the first Dy site, Dy is bonded in a 8-coordinate geometry to six Ni and eight Sn atoms. There are a spread of Dy–Ni bond distances ranging from 3.28–3.46 Å. There are a spread of Dy–Sn bond distances ranging from 3.13–3.20 Å. In the second Dy site, Dy is bonded in a 11-coordinate geometry to two equivalent Ni and nine Sn atoms. Both Dy–Ni bond lengths are 3.09 Å. There are a spread of Dy–Sn bond distances ranging from 3.15–3.49 Å. In the third Dy site, Dy is bonded in a 1-coordinate geometry to four Ni and nine Sn atoms. There are two shorter (3.14 Å) and two longer (3.24 Å) Dy–Ni bond lengths. There are a spread of Dy–Sn bond distances ranging from 3.17–3.59 Å. There are three inequivalent Ni sites. In the first Ni site, Ni is bonded in a 7-coordinate geometry to three Dy and five Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.50–2.78 Å. In the second Ni site, Ni is bonded in a 10-coordinate geometry to four Dy and five Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.54–2.67 Å. In the third Ni site, Ni is bonded in a 10-coordinate geometry to five Dy and five Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.54–2.74 Å. There are six inequivalent Sn sites. In the first Sn site, Sn is bonded in a 8-coordinate geometry to four Dy, three Ni, and one Sn atom. The Sn–Sn bond length is 3.01 Å. In the second Sn site, Sn is bonded in a 2-coordinate geometry to four Dy, one Ni, and four Sn atoms. There are two shorter (3.01 Å) and two longer (3.27 Å) Sn–Sn bond lengths. In the third Sn site, Sn is bonded in a 8-coordinate geometry to four Dy, three equivalent Ni, and one Sn atom. In the fourth Sn site, Sn is bonded in a 9-coordinate geometry to six Dy and three Ni atoms. In the fifth Sn site, Sn is bonded in a 6-coordinate geometry to four Dy and two Ni atoms. In the sixth Sn site, Sn is bonded in a 7-coordinate geometry to four Dy, three Ni, and two equivalent Sn atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Hf2NiP by Materials Project

Hf2NiP is delta Molybdenum Boride-derived structured and crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are two inequivalent Hf sites. In the first Hf site, Hf is bonded in a 7-coordinate geometry to four equivalent Ni and three equivalent P atoms. There are a spread of Hf–Ni bond distances ranging from 2.66–2.82 Å. There are two shorter (2.70 Å) and one longer (2.86 Å) Hf–P bond lengths. In the second Hf site, Hf is bonded in a 7-coordinate geometry to three equivalent Ni and four equivalent P atoms. There are two shorter (2.70 Å) and one longer (2.87 Å) Hf–Ni bond lengths. There are a spread of Hf–P bond distances ranging from 2.68–2.81 Å. Ni is bonded in a 9-coordinate geometry to seven Hf and two equivalent P atoms. Both Ni–P bond lengths are 2.31 Å. P is bonded in a 9-coordinate geometry to seven Hf and two equivalent Ni atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SrCa2In2Ge by Materials Project

SrCa2In2Ge is delta Molybdenum Boride-derived structured and crystallizes in the orthorhombic Pnna space group. The structure is three-dimensional. Sr is bonded in a 7-coordinate geometry to four equivalent In and three equivalent Ge atoms. There are two shorter (3.54 Å) and two longer (3.56 Å) Sr–In bond lengths. There are one shorter (3.43 Å) and two longer (3.64 Å) Sr–Ge bond lengths. Ca is bonded in a 7-coordinate geometry to five equivalent In and two equivalent Ge atoms. There are a spread of Ca–In bond distances ranging from 3.50–3.61 Å. There are one shorter (3.38 Å) and one longer (3.41 Å) Ca–Ge bond lengths. In is bonded in a 9-coordinate geometry to two equivalent Sr, five equivalent Ca, one In, and one Ge atom. The In–In bond length is 3.09 Å. The In–Ge bond length is 2.98 Å. Ge is bonded in a 9-coordinate geometry to three equivalent Sr, four equivalent Ca, and two equivalent In atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ba2PPd2 by Materials Project

Ba2Pd2P is delta Molybdenum Boride-derived structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Ba is bonded in a 8-coordinate geometry to six Pd and three equivalent P atoms. There are a spread of Ba–Pd bond distances ranging from 3.23–3.67 Å. There are a spread of Ba–P bond distances ranging from 3.27–3.44 Å. There are two inequivalent Pd sites. In the first Pd site, Pd is bonded in a 9-coordinate geometry to six equivalent Ba, two equivalent Pd, and one P atom. There are one shorter (2.79 Å) and one longer (3.26 Å) Pd–Pd bond lengths. The Pd–P bond length is 2.45 Å. In the second Pd site, Pd is bonded in a 10-coordinate geometry to six equivalent Ba, two equivalent Pd, and two equivalent P atoms. There are one shorter (2.46 Å) and one longer (2.49 Å) Pd–P bond lengths. P is bonded in a 9-coordinate geometry to six equivalent Ba and three Pd atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LuNiSn2 by Materials Project

LuNiSn2 is delta Molybdenum Boride-derived structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Lu sites. In the first Lu site, Lu is bonded in a 1-coordinate geometry to four Ni and nine Sn atoms. There are two shorter (3.06 Å) and two longer (3.18 Å) Lu–Ni bond lengths. There are a spread of Lu–Sn bond distances ranging from 3.11–3.58 Å. In the second Lu site, Lu is bonded in a 11-coordinate geometry to three Ni and nine Sn atoms. There are two shorter (3.01 Å) and one longer (3.48 Å) Lu–Ni bond lengths. There are a spread of Lu–Sn bond distances ranging from 3.10–3.49 Å. In the third Lu site, Lu is bonded in a 8-coordinate geometry to six Ni and eight Sn atoms. There are a spread of Lu–Ni bond distances ranging from 3.28–3.47 Å. There are a spread of Lu–Sn bond distances ranging from 3.08–3.17 Å. There are three inequivalent Ni sites. In the first Ni site, Ni is bonded in a 7-coordinate geometry to three Lu and five Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.49–2.82 Å. In the second Ni site, Ni is bonded in a 10-coordinate geometry to five Lu and five Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.55–2.67 Å. In the third Ni site, Ni is bonded in a 10-coordinate geometry to five Lu and five Sn atoms. There are a spread of Ni–Sn bond distances ranging from 2.54–2.73 Å. There are six inequivalent Sn sites. In the first Sn site, Sn is bonded in a 8-coordinate geometry to four Lu, three Ni, and one Sn atom. The Sn–Sn bond length is 2.99 Å. In the second Sn site, Sn is bonded in a 2-coordinate geometry to four Lu and one Ni atom. In the third Sn site, Sn is bonded in a 8-coordinate geometry to four Lu, three equivalent Ni, and one Sn atom. In the fourth Sn site, Sn is bonded in a 9-coordinate geometry to six Lu and three Ni atoms. In the fifth Sn site, Sn is bonded in a 2-coordinate geometry to four Lu and two Ni atoms. In the sixth Sn site, Sn is bonded in a 4-coordinate geometry to four Lu and three Ni atoms.

36 MATERIALS SCIENCE↗