Effect of surface oxidation on thermal shock resistance of the ZrB2–SiC–ZrC ceramic

2011 ◽  
Vol 71 (12) ◽  
pp. 1501-1506 ◽  
Author(s):  
Zhanjun Wu ◽  
Zhi Wang ◽  
Guodong Shi ◽  
Jin Sheng
Keyword(s):  
Thermal Shock ◽  
Thermal Shock Resistance ◽  
Surface Oxidation ◽  
Shock Resistance ◽  
Effect Of Surface

Effect of Surface Oxidation at 1500 °C on Flexural Strength and Thermal Shock Resistance of the ZrB2-SiC-ZrC Ceramic

2013 ◽  
Vol 712-715 ◽  
pp. 115-118
Author(s):  
Min Wang ◽  
Zhi Wang ◽  
Shi Chao Li ◽  
Jian Zhang ◽  
Bao Shuai Zhang
Keyword(s):  
Flexural Strength ◽  
Thermal Shock ◽  
Oxide Layer ◽  
Thermal Shock Resistance ◽  
Surface Oxidation ◽  
Isothermal Oxidation ◽  
Before And After ◽  
Shock Resistance ◽  
Original Strength ◽  
Effect Of Surface

The isothermal oxidation of the ZrB2-SiC-ZrC ceramic was carried out in static air at a constant temperature of 1500±15 oC for 20 min. Compared with the original strength of 580 MPa, the strength of the oxidized specimen increased to 655±45 MPa, because the flaws in the surface of the specimen were sealed by the oxide layer. The thermal shock resistance of the specimens before and after the oxidation was measured by the water quenching. The measured ΔTcritfor the oxidized specimen was 641 oC that was obviously greater than 348 °C for the unoxidized specimen. The improvement in the thermal shock resistance was attributed to the formation the oxide layer on the surface of the specimen. The results here pointed to a promising method for improving strength and thermal shock resistance of ZrB2-based ceramics.

Thermal shock resistance of Ti3SiC2 ceramic under extremely rapid thermal cycling

2021 ◽  
Vol 866 ◽  
pp. 158985
Author(s):  
Xiaojia Su ◽  
Yiwang Bao ◽  
Detian Wan ◽  
Haibin Zhang ◽  
Ludi Xu ◽  
...  
Keyword(s):  
Thermal Cycling ◽  
Thermal Shock ◽  
Thermal Shock Resistance ◽  
Shock Resistance ◽  
Rapid Thermal Cycling
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