التفاصيل البيبلوغرافية
| العنوان: |
Amorphous silicoboron carbonitride monoliths resistant to flowing air up to 1800 °C. |
| المؤلفون: |
Liang, Bin1, Yang, Zhi-Hua1 zhyang@hit.edu.cn, Jia, De-Chang1 dcjia@hit.edu.cn, Rao, Jian-Cun1, Yu, Dong-Li2, Tian, Yong-Jun2, Li, Quan1, Miao, Yang1, Zhu, Qi-Shuai1, Zhou, Yu1 |
| المصدر: |
Corrosion Science. Aug2016, Vol. 109, p162-173. 12p. |
| مصطلحات موضوعية: |
*OXIDATION, *SILICA, *AMORPHOUS substances, *EVAPORATION (Chemistry), *CRISTOBALITE, *CHEMICAL bonds, *X-ray diffraction |
| مستخلص: |
The oxidation resistance of amorphous Si B C N monolith was investigated at 1500–1800 °C. The oxide products are amorphous SiO 2 and cristobalite underlying amorphous oxide scale. The release of gases including CO, CO 2 , N 2 and evaporation of B 2 O 3 result in formation of bubbles and loose, porous oxide scale at 1600 °C. Si B C N monolith exhibits oxidation resistance superior to SiC and Si 3 N 4 above 1600 °C, and retains significant resistance to oxidation up to 1800 °C. The formation of dense, passivating surface layers of N-containing amorphous SiO 2 , the ternary chemical bonds and capsule-like structures are primarily responsible for the oxidation resistance. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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