Effect of Carbon Black Addition on Reaction-Bonded Silicon Carbide Ceramics

2005 ◽  
Vol 287 ◽  
pp. 189-193 ◽  
Author(s):  
Joo Sun Kim ◽  
H.W. Jun ◽  
Huesup Song ◽  
Jong Ho Lee ◽  
Hai Won Lee
Keyword(s):  
Silicon Carbide ◽  
Carbon Black ◽  
High Strength ◽  
Molten Silicon ◽  
Simple Shape ◽  
Reactive Infiltration ◽  
Carbide Ceramics ◽  
Sintering Shrinkage ◽  
Silicon Carbide Ceramics ◽  
Planar Contact

High strength reaction-bonded silicon carbide ceramics was successfully produced by reducing the amount of residual silicon and the silicon pocket size with carbon black as an additional carbon source. A prototype of wafer carrier was also produced in near-net dimension by planar contact infiltration of molten silicon into a preform joined with six pieces of simple shape by eliminating process shrinkages. Forming shrinkages were decreased to a negligible level by compression molding, while sintering shrinkage was eliminated by reactive infiltration of molten silicon.

Marine Precursors-Based Biomorphic SiC Ceramics

2008 ◽  
Vol 587-588 ◽  
pp. 67-71 ◽  
Author(s):  
Miriam López-Álvarez ◽  
Lourdes Rial ◽  
Jacinto P. Borrajo ◽  
Pio González ◽  
Julia Serra ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Base Material ◽  
High Strength ◽  
Biochemical Properties ◽  
Natural Material ◽  
Original Material ◽  
Saccorhiza Polyschides ◽  
Innovative Material ◽  
Carbide Ceramics ◽  
Silicon Carbide Ceramics

Biomorphic silicon carbide ceramics is very promising as a natural base material for biomedical applications due to their excellent mechanical-biochemical properties and biocompatible behaviour. This innovative material is produced by molten-Si infiltration of carbon templates obtained by controlled pyrolysis of biological precursors. The final product is a light, tough and high-strength material with predictable microstructure. In this study the possibility to produce biomorphic silicon carbide ceramics using marine precursors is demonstrated. Due to the great biodiversity offered by the marine medium, a previous selection of algae (Laminaria ochroleuca Bachelot de la Pylaie, Undaria pinnatifida (Harvey) Suringar, Saccorhiza polyschides (Lightfoot) Batters and Cystoseira baccata (Gmelin) Silva) and marine plants (Zostera marina L. and Juncus maritimus L.) was carried out, taking into account its microstructure, porosity and interconnectivity of each species. The bioceramization process was evaluated in three phases: original material analysis, pyrolysis process and reactive melt Si-infiltration. For each marine precursor, a detailed study by Scanning Electron Microscopy (SEM) of the natural material, the carbon preform and the final SiC biomorphic product is described. The viability to obtain biomorphic SiC ceramic material for all the selected marine precursors is discussed.

High-Strength Porous Silicon Carbide Ceramics by an Oxidation-Bonding Technique

2004 ◽  
Vol 85 (11) ◽  
pp. 2852-2854 ◽  
Author(s):  
Jihong She ◽  
Jian-Feng Yang ◽  
Naoki Kondo ◽  
Tatsuki Ohji ◽  
Shuzo Kanzaki ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Porous Silicon ◽  
High Strength ◽  
Porous Silicon Carbide ◽  
Carbide Ceramics ◽  
Silicon Carbide Ceramics ◽  
Bonding Technique

Morphology of SiC Whisker in Whisker Reinforced Reaction Bonded SiC Composite

2012 ◽  
Vol 457-458 ◽  
pp. 422-426
Author(s):  
Shuang Li ◽  
Yu Min Zhang ◽  
Jie Cai Han ◽  
Yu Feng Zhou
Keyword(s):  
Silicon Carbide ◽  
Chemical Etching ◽  
Slip Casting ◽  
Polished Surface ◽  
Molten Silicon ◽  
Reaction Sintering ◽  
Ultrasonic Dispersion ◽  
Rapid Reaction ◽  
Carbide Ceramics ◽  
Silicon Carbide Ceramics

SiC whisker was introduced into reaction bonded silicon carbide to produce high performances composite by slip casting and reaction sintering. This study aimed at morphology of SiC whisker in the reaction bonded silicon carbide ceramics. The whisker was homogeneously dispersed into SiC/C suspension by ball-milling and ultrasonic dispersion. By chemical etching, the whisker displays the original burl profile on the polished surface of the composite. The raise of whisker fraction leads to an increase of porosity of the green body; and thus a decrease of density of the sintered body. For the specimen with 25 wt.% whisker, the rapid reaction of carbon with excess molten silicon leads to the missing of burl profile on the whisker surface. It is speculated that β-SiC on the whisker surface dissolved in the molten silicon during liquid silicon infiltration.

Effects of Vickers Cracks on the Mechanical Properties of Solid-phase-sintered Silicon Carbide Ceramics

2012 ◽  
Vol 27 (9) ◽  
pp. 965-969
Author(s):  
Xiao YANG ◽  
Xue-Jian LIU ◽  
Zheng-Ren HUANG ◽  
Gui-Ling LIU ◽  
Xiu-Min YAO
Keyword(s):  
Mechanical Properties ◽  
Silicon Carbide ◽  
Solid Phase ◽  
Carbide Ceramics ◽  
Silicon Carbide Ceramics ◽  
Sintered Silicon

Vickers indentation crack analysis of solid-phase-sintered silicon carbide ceramics

2013 ◽  
Vol 39 (1) ◽  
pp. 841-845 ◽  
Author(s):  
Xiao Yang ◽  
Xuejian Liu ◽  
Zhengren Huang ◽  
Xiuming Yao ◽  
Guiling Liu
Keyword(s):  
Silicon Carbide ◽  
Solid Phase ◽  
Vickers Indentation ◽  
Crack Analysis ◽  
Indentation Crack ◽  
Carbide Ceramics ◽  
Silicon Carbide Ceramics ◽  
Sintered Silicon

scholarly journals Surface Nitridation of Silicon Carbide Ceramics

1989 ◽  
Vol 97 (1131) ◽  
pp. 1348-1353
Author(s):  
Tadahisa ARAHORI ◽  
Nobuya IWAMOTO
Keyword(s):  
Silicon Carbide ◽  
Carbide Ceramics ◽  
Silicon Carbide Ceramics
Sign in / Sign up

Export Citation Format

Share Document