Effect of La 2 O 3 on the oxidation resistance of SiC ceramic at 1973 K: Experimental and theoretical study

2019 ◽  
Vol 103 (1) ◽  
pp. 614-621 ◽  
Author(s):  
Wei Xie ◽  
Qiangang Fu ◽  
Chunyu Cheng ◽  
Guangpeng Zhang ◽  
Ningning Yan ◽  
...  
Keyword(s):  
Oxidation Resistance ◽  
Theoretical Study ◽  
Sic Ceramic

Oxidation resistance and failure behaviour of environment barrier coatings for Cf/SiC ceramic

2014 ◽  
Vol 18 (sup4) ◽  
pp. S4-1112-S4-1114 ◽  
Author(s):  
J. J. Fan ◽  
S. M. He ◽  
Z. D. Chang ◽  
L. M. He ◽  
F. C. Wang
Keyword(s):  
Oxidation Resistance ◽  
Barrier Coatings ◽  
Failure Behaviour ◽  
Sic Ceramic

Effects of Si3N4 and WC on the oxidation resistance of ZrB2/SiC ceramic tool materials

2021 ◽  
Author(s):  
Jingbao Zhang ◽  
Hui Chen ◽  
Guangchun Xiao ◽  
Mingdong Yi ◽  
Zhaoqiang Chen ◽  
...  
Keyword(s):  
Oxidation Resistance ◽  
Ceramic Tool ◽  
Tool Materials ◽  
Sic Ceramic

Measurement and Simulation of the Oxidation of Carbon Fibers and C/SiC Ceramic

2006 ◽  
Vol 45 ◽  
pp. 1489-1494 ◽  
Author(s):  
Jürgen Meinhardt ◽  
Tobias Woyke ◽  
Friedrich Raether ◽  
Andreas Kienzle
Keyword(s):  
Oxidation Resistance ◽  
Carbon Fibers ◽  
Volume Fraction ◽  
Oxidation Kinetic ◽  
Short Fiber ◽  
Fiber Bundles ◽  
Sic Ceramic ◽  
Sic Composites

The fracture toughness increases but the long-term oxidation resistance of carbon short fiber reinforced C/SiC composites decreases if the volume fraction of carbon fibers is high. To understand the oxidation kinetic and their dependence from the C/SiC microstructure the composites and also the used carbon short fiber bundles were investigated by a thermo balance and by scanning electron microscopy. Additionally the oxidation of single carbon short fibers was measured in situ by a hot stage light microscope. To simulate oxidation kinetics a software program using Finite Element methods was developed. Below 800 °C oxidation resistance can be improved by increasing the degree of graphitization of the carbon material within the short fiber bundles. Above 800 °C the number of junctions between the short fiber bundles has to be reduced.

Oxidation resistance and mechanical properties of LaB6-MoSi2-SiC ceramic coating toughened by SiC nanowires

2018 ◽  
Vol 44 (14) ◽  
pp. 16365-16378 ◽  
Author(s):  
Changcong Wang ◽  
Kezhi Li ◽  
Qinchuan He ◽  
Yangyang Su ◽  
Caixia Huo ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Oxidation Resistance ◽  
Ceramic Coating ◽  
Sic Nanowires ◽  
Sic Ceramic

Oxidation Behavior of Ti3SiC2-SiC Ceramic Composites

2007 ◽  
Vol 561-565 ◽  
pp. 687-691
Author(s):  
De Gui Zhu ◽  
Zhi Gang Wang
Keyword(s):  
Oxidation Resistance ◽  
Hot Isostatic Pressing ◽  
Ceramic Composites ◽  
Temperature Oxidation ◽  
Parabolic Law ◽  
Sic Ceramic ◽  
Long Time ◽  
Better Than ◽  
Oxidation Behaviors

The high temperature oxidation behaviors of the Ti3SiC2-SiC ceramic composites fabricated by in situ synthesis under hot isostatic pressing were studied by DSC. The results show that the growth of the oxide scales on Ti3SiC2-SiC ceramic composites obeys a parabolic law in air. The oxidation resistance at 1400°C is better than that at 1200°C for long time. The oxidation resistance of the Ti3SiC2-SiC ceramic composites is much higher than that of monolithic Ti3SiC2. The mechanism of oxidation of Ti3SiC2-SiC ceramic composites is discussed.

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