Processing and Thermal Shock Resistance of a Polymer-Derived MoSi2/SiCO Ceramic Composite

2005 ◽  
Vol 88 (11) ◽  
pp. 3222-3225 ◽  
Author(s):  
Luca Bergero ◽  
Vincenzo M. Sglavo ◽  
Gian Domenico Soraru
Author(s):  
B.E. Goncharov ◽  
◽  
A.M. Sipatov ◽  
N.N. Cherkashneva ◽  
A.Yu. Pleskan ◽  
...  

The article covers the performance of thermal shock resistance experiments of a ceramic composite with two types of anti-oxidation coatings. A thermal shock burner rig was used to carry out the experiments similar to those expected in a combustor of a turbojet engine. SEM and х-ray diffraction analyses were used to examine the antioxidation coatings. It was deter-mined that the coating based on the refractory compounds possesses high thermal shock resistance when exposed to the fuel gas flow from a burner rig.


2016 ◽  
Vol 697 ◽  
pp. 675-679
Author(s):  
Nian Yu ◽  
Tong Zhang ◽  
Shu Cai ◽  
Ding Ding Wang ◽  
Li Ping Luo

A kind of ceramic composite consisted of Mg-Y co-doped ZrO2 and MgAl2O4 was prepared as candidate material to replace the high destiny graphite crucible which was often used in nuclear industry. When the addition of MgAl2O4 was 7 wt%, samples with good thermal shock resistance were obtained. The obtained samples were tested up to 12 h in molten uranium, and no apparent cracks were found on the corrosion surface. Meanwhile, the corrosion rate decreased significantly from 30 mg·cm-2·h-1 to 3 mg·cm-2·h-1 as the corrosion time prolonged from 2 h to 12 h due to the formation of a protection layer consisted of UO2, Al3Zr2 and ZrC during the uranium corrosion test. These results suggested that the ceramic composite prepared in this study owned both good corrosion resistance to the molten uranium and thermal shock resistance at high temperatures,so it’s a high potential material to replace the high density graphite crucible in nuclear industry.


2021 ◽  
Vol 866 ◽  
pp. 158985
Author(s):  
Xiaojia Su ◽  
Yiwang Bao ◽  
Detian Wan ◽  
Haibin Zhang ◽  
Ludi Xu ◽  
...  

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