Engineering Papers⌕ Search

SEARCH · Engineering Papers

Results for “C-Si”

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.

120 records · Page 7

Materials Data on SiC by Materials Project

SiC is Moissanite-6H-like structured and crystallizes in the trigonal P3m1 space group. The structure is three-dimensional. there are six inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. All Si–C bond lengths are 1.90 Å. In the second Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the third Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the fourth Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the fifth Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the sixth Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. There are five inequivalent C4- sites. In the first C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the second C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the third C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the fourth C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. All C–Si bond lengths are 1.90 Å. In the fifth C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. All C–Si bond lengths are 1.89 Å.

36 MATERIALS SCIENCE↗

Materials Data on SiC by Materials Project

SiC is Moissanite-6H-like structured and crystallizes in the trigonal P3m1 space group. The structure is three-dimensional. there are eight inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the second Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the third Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. All Si–C bond lengths are 1.90 Å. In the fourth Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the fifth Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the sixth Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. All Si–C bond lengths are 1.90 Å. In the seventh Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the eighth Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. All Si–C bond lengths are 1.90 Å. There are eight inequivalent C4- sites. In the first C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the second C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the third C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the fourth C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. All C–Si bond lengths are 1.90 Å. In the fifth C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the sixth C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. All C–Si bond lengths are 1.89 Å. In the seventh C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. All C–Si bond lengths are 1.90 Å. In the eighth C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. All C–Si bond lengths are 1.89 Å.

36 MATERIALS SCIENCE↗

Materials Data on SiC by Materials Project

SiC is Moissanite-6H-like structured and crystallizes in the trigonal P3m1 space group. The structure is three-dimensional. there are five inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the second Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the third Si4+ site, Si4+ is bonded to four equivalent C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the fourth Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. All Si–C bond lengths are 1.90 Å. In the fifth Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. All Si–C bond lengths are 1.90 Å. There are five inequivalent C4- sites. In the first C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the second C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the third C4- site, C4- is bonded to four equivalent Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the fourth C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the fifth C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. All C–Si bond lengths are 1.89 Å.

36 MATERIALS SCIENCE↗

Materials Data on SiC by Materials Project

SiC is Zincblende, Sphalerite structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. Si4+ is bonded to four equivalent C4- atoms to form corner-sharing SiC4 tetrahedra. All Si–C bond lengths are 1.90 Å. C4- is bonded to four equivalent Si4+ atoms to form corner-sharing CSi4 tetrahedra.

36 MATERIALS SCIENCE↗

Materials Data on SiC by Materials Project

SiC is Wurtzite structured and crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Si4+ is bonded to four equivalent C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.91 Å) Si–C bond length. C4- is bonded to four equivalent Si4+ atoms to form corner-sharing CSi4 tetrahedra.

36 MATERIALS SCIENCE↗

Materials Data on SiC by Materials Project

SiC is Moissanite-6H structured and crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. there are three inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the second Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the third Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. All Si–C bond lengths are 1.90 Å. There are three inequivalent C4- sites. In the first C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the second C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the third C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra.

36 MATERIALS SCIENCE↗

Materials Data on SiC3 by Materials Project

SiC(C)2 crystallizes in the tetragonal I4/mmm space group. The structure is two-dimensional and consists of two C sheets oriented in the (0, 0, 1) direction and two SiC sheets oriented in the (0, 0, 1) direction. In each C sheet, C+1.33- is bonded in a square co-planar geometry to four equivalent C+1.33- atoms. All C–C bond lengths are 1.80 Å. In each SiC sheet, Si4+ is bonded in a square co-planar geometry to four equivalent C+1.33- atoms. All Si–C bond lengths are 1.80 Å. C+1.33- is bonded in a square co-planar geometry to four equivalent Si4+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on SiC2 by Materials Project

SiC2 crystallizes in the tetragonal P4_2/mmc space group. The structure is three-dimensional. Si4+ is bonded to four equivalent C2- atoms to form corner-sharing SiC4 tetrahedra. All Si–C bond lengths are 1.90 Å. C2- is bonded in a trigonal planar geometry to two equivalent Si4+ and one C2- atom. The C–C bond length is 1.37 Å.

36 MATERIALS SCIENCE↗

Materials Data on SiC2 by Materials Project

SiC2 crystallizes in the cubic Pa-3 space group. The structure is three-dimensional. Si4+ is bonded to six equivalent C2- atoms to form SiC6 octahedra that share corners with twelve equivalent SiC6 octahedra and corners with six equivalent CSi3C tetrahedra. The corner-sharing octahedral tilt angles are 71°. All Si–C bond lengths are 2.08 Å. C2- is bonded to three equivalent Si4+ and one C2- atom to form CSi3C tetrahedra that share corners with three equivalent SiC6 octahedra and corners with fifteen equivalent CSi3C tetrahedra. The corner-sharing octahedral tilt angles are 70°. The C–C bond length is 1.36 Å.

36 MATERIALS SCIENCE↗

Materials Data on Si5C3 by Materials Project

Si5C3 crystallizes in the trigonal R3 space group. The structure is three-dimensional and consists of three silicon molecules and one Si4C3 framework. In the Si4C3 framework, there are two inequivalent Si+2.40+ sites. In the first Si+2.40+ site, Si+2.40+ is bonded in a trigonal planar geometry to three equivalent C4- atoms. All Si–C bond lengths are 1.85 Å. In the second Si+2.40+ site, Si+2.40+ is bonded in a bent 120 degrees geometry to two equivalent C4- atoms. There is one shorter (1.78 Å) and one longer (1.79 Å) Si–C bond length. C4- is bonded in a trigonal planar geometry to three Si+2.40+ atoms.

36 MATERIALS SCIENCE↗

Materials Data on SiC by Materials Project

SiC is Moissanite-6H-like structured and crystallizes in the trigonal R3m space group. The structure is three-dimensional. there are thirteen inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the second Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. All Si–C bond lengths are 1.90 Å. In the third Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.91 Å) Si–C bond length. In the fourth Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the fifth Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. All Si–C bond lengths are 1.89 Å. In the sixth Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the seventh Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the eighth Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the ninth Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the tenth Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the eleventh Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the twelfth Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.90 Å) Si–C bond length. In the thirteenth Si4+ site, Si4+ is bonded to four C4- atoms to form corner-sharing SiC4 tetrahedra. There is three shorter (1.89 Å) and one longer (1.91 Å) Si–C bond length. There are thirteen inequivalent C4- sites. In the first C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the second C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the third C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the fourth C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the fifth C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the sixth C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. All C–Si bond lengths are 1.89 Å. In the seventh C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the eighth C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the ninth C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the tenth C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. All C–Si bond lengths are 1.89 Å. In the eleventh C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the twelfth C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra. In the thirteenth C4- site, C4- is bonded to four Si4+ atoms to form corner-sharing CSi4 tetrahedra.

36 MATERIALS SCIENCE↗

Benchmarks of Global Clean Energy Manufacturing, 2014-2016

The Clean Energy Manufacturing Analysis Center (CEMAC), sponsored by the U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE), provides objective analysis and up-to-date data on global supply chains and manufacturing of clean energy technologies. This updated version of the Benchmarks of Global Clean Energy Manufacturing sheds light on several fundamental questions about the global clean technology manufacturing enterprise: How does clean energy technology manufacturing impact national economies? What are the economic opportunities across the manufacturing supply chain? What are the global dynamics of clean energy technology manufacturing?

29 ENERGY PLANNING, POLICY, AND ECONOMY↗