Characterization of silicon-silicon carbide ceramic derived from carbon-carbon silicon carbide composites

2013 ◽  
Vol 104 (4) ◽  
pp. 398-402 ◽  
Author(s):  
Vijay K. Srivastava ◽  
Walter Krenkel
Keyword(s):  
Silicon Carbide ◽  
Silicon Carbide Ceramic ◽  
Silicon Silicon

Characterization of Single-grit Grooving Process of Silicon Carbide Ceramic Using Multisensory Approach

Silicon ◽  
2021 ◽  
Author(s):  
D. Giridhar ◽  
G. Sakthivel ◽  
L. Vijayaraghavan ◽  
R. Krishnamurthy ◽  
M. Senthil Kumar ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Silicon Carbide Ceramic

scholarly journals A 3.5 kV Thyristor in 4H-SiC with a JTE Periphery

2005 ◽  
Vol 483-485 ◽  
pp. 1005-1008
Author(s):  
Pierre Brosselard ◽  
Thierry Bouchet ◽  
Dominique Planson ◽  
Sigo Scharnholz ◽  
Gontran Pâques ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
High Voltage ◽  
Electrical Characterization ◽  
Electrical Strength ◽  
Oxide Charge ◽  
Blocking Voltage ◽  
Simulation Based ◽  
Device Structures ◽  
Silicon Silicon

Overcoming the physical limits of silicon, silicon carbide shows a high potential for making high voltage thyristors. After a simulation based optimization of the main thyristor parameters, including JTE protection and a SiO2 layer passivation, 4H-SiC GTO thyristors were realized and characterized. Designed for a theoretical blocking capability of nearly 6 kV, the electrical characterization of all device structures revealed a maximum blocking voltage of 3.5 kV. Comparing simulation and measurement suggests that a negative oxide charge density of ~ 2×1012 cm-2 causes the decrease in electrical strength.

Comparative Study of Biomorphic Silicon/Silicon Carbide Ceramic from Birch and Compressed Birch

2010 ◽  
Vol 434-435 ◽  
pp. 609-612 ◽  
Author(s):  
Zi Li Yan ◽  
Jie Liu ◽  
Jian Chun Zhang ◽  
Tian Ma ◽  
Zheng Cao Li
Keyword(s):  
Silicon Carbide ◽  
Treatment Method ◽  
Compression Process ◽  
Silicon Carbide Ceramic ◽  
Sic Ceramics ◽  
Carbon Template ◽  
Wood Compression ◽  
Sic Ceramic ◽  
Pre Treatment ◽  
Silicon Silicon

Wood compression process was innovatively introduced as a pre-treatment method to birch into the fabrication of biomorphic silicon/silicon carbide (Si/SiC) ceramic with high density. Firstly, birch blocks were compressed to the density in the range of 0.85-1.00g/cm3. Secondly, both birch blocks and compressed birch blocks were carbonized at 1200°C to get carbon templates. Lastly, carbon templates were infiltrated with liquid silicon to obtain biomorphic Si/SiC ceramics. The effect of compression process on the density and microstructure of both carbon template and ceramic was investigated. The results show that the maxium density of biomorphic Si/SiC ceramic from compressed birch is 3.01g/cm3, whereas the density of the ceramic from birch is only 2.80-2.89g/cm3. So the compression process was an effective method to increase the density of biomorphic Si/SiC ceramic.

Irradiation behavior of pyrolytic silicon carbide

1983 ◽  
Vol 41 ◽  
pp. 72-73
Author(s):  
R. J. Lauf
Keyword(s):  
Silicon Carbide ◽  
Fission Products ◽  
Thermodynamics And Kinetics ◽  
Neutron Fluences ◽  
Fuel Particles ◽  
Sic Coatings ◽  
Irradiation Behavior ◽  
Kinetics Of ◽  
Htgr Fuel

Fuel particles for the High-Temperature Gas-Cooled Reactor (HTGR) contain a layer of pyrolytic silicon carbide to act as a miniature pressure vessel and primary fission product barrier. Optimization of the SiC with respect to fuel performance involves four areas of study: (a) characterization of as-deposited SiC coatings; (b) thermodynamics and kinetics of chemical reactions between SiC and fission products; (c) irradiation behavior of SiC in the absence of fission products; and (d) combined effects of irradiation and fission products. This paper reports the behavior of SiC deposited on inert microspheres and irradiated to fast neutron fluences typical of HTGR fuel at end-of-life.

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