Crack-healing behavior and resultant strength properties of silicon carbide ceramic

2005 ◽  
Vol 25 (5) ◽  
pp. 569-576 ◽  
Author(s):  
Sang-Kee Lee ◽  
Wataru Ishida ◽  
Seung-Yun Lee ◽  
Ki-Woo Nam ◽  
Kotoji Ando
2010 ◽  
Vol 24 (15n16) ◽  
pp. 2869-2874 ◽  
Author(s):  
KI WOO NAM ◽  
JONG SOON KIM ◽  
SEUNG WON PARK

Silicon carbide ( SiC ) exhibits good strength at high temperatures and resistance to radioactivity. However, it has poor fracture toughness. The ability to heal cracks represents a very desirable means of overcoming this weakness. This study focuses on the crack-healing behavior and bending strength of SiC ceramics to which sintering additives have been added. Optimized crack-healing condition was found to be 1hr at an atmospheric level of 1100 °C. The maximum crack size that can be healed at the optimized condition was a semi-elliptical surface crack of 450 µm in diameter. Si oxide was revealed to be the principle material involved in crack-healing.


2021 ◽  
Author(s):  
Jian Zhang ◽  
Feng Geng ◽  
Zhichao Liu ◽  
Qinghua Zhang ◽  
Qiao Xu ◽  
...  

Author(s):  
Andi Udayakumar ◽  
M. Rizvan Basha ◽  
Sarabjit Singh ◽  
Sweety Kumari ◽  
V. V. Bhanu Prasad

2014 ◽  
Vol 800-801 ◽  
pp. 203-207
Author(s):  
Zhen Bo Wang ◽  
Liang Zhang ◽  
Shu Zhi Li

This article mainly aims at the problem of silicon carbide ceramic mechanical turning difficult processing,by adopting the method of the numerical control turning processing.Design a special fixtures and a NC machining process to accomplish the manufacture of silicon carbide plate.And through the single factor analysis method to process parameters were analyzed.


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