A comparative study on high temperature oxidation behavior of SiC, SiC-BN and SiBCN monoliths,Corrosion Science

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A comparative study on high temperature oxidation behavior of SiC, SiC-BN and SiBCN monoliths
Corrosion Science ( IF 8.3 ) Pub Date : 2021-09-20 , DOI: 10.1016/j.corsci.2021.109855
Meng Zhang _{1,

2} , Qingqing Chen _{1,

2} , Yunpeng He ₁ , Yuzhe Hong _{1,

2,

3} , Daxin Li _{1,

2} , Zhihua Yang _{1,

2,

3} , Dechang Jia _{1,

2,

3} , Delong Cai _{1,

2} , Zibo Niu _{1,

2} , Jingyi Guan _{1,

2} , Bingzhu Wang _{1,

2}

Affiliation

In this study, the oxidation behavior and mechanism of SiBCN monoliths were compared with SiC and SiC-BN monoliths. At 1100–1300 °C, the oxide layers of SiC and SiBCN monoliths were relatively smooth and dense, while that of SiC-BN monoliths were destroyed by many bubbles. Further oxidized at 1500 °C, some cracks and bubbles appeared on the surfaces and interfaces of SiC-BN monoliths. The oxidation of SiC phases was thermodynamically unstable than that of C and BN, but the oxidation of BN and/or C occurred preferentially after considering the kinetic factors. BN(C) phase has a positive role on SiBCN oxidation resistance.

Data availability

The raw/processed data required to reproduce these findings cannot be shared at this time due to legal or ethical reasons.

中文翻译：

SiC、SiC-BN和SiBCN整料高温氧化行为对比研究

在本研究中，将 SiBCN 整料与 SiC 和 SiC-BN 整料的氧化行为和机理进行了比较。在 1100-1300 °C 时，SiC 和 SiBCN 整料的氧化层相对光滑和致密，而 SiC-BN 整料的氧化层被许多气泡破坏。在 1500 °C 下进一步氧化，SiC-BN 整体材料的表面和界面出现一些裂纹和气泡。SiC相的氧化比C和BN在热力学上不稳定，但考虑到动力学因素后，BN和/或C的氧化优先发生。BN(C) 相对 SiBCN 抗氧化性有积极作用。