| 蔡凡,薛健,谭东现,肖登明.三氟碘甲烷在有功负载电流下分解特性研究[J].,2019,47(4):8-12，25. |
| 三氟碘甲烷在有功负载电流下分解特性研究 |
| Decomposition Products Analysis of Trifluoroiodomethane (CF3I) Under Load Current Interruption |
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| DOI： |
| 中文关键词: 三氟碘甲烷 分解产物 有功负载开断 |
| 英文关键词: CF3I decomposition products load current interruption |
| 基金项目: |
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| 中文摘要: |
| 研究了有功负载电流开断下三氟碘甲烷（CF3I）的分解特性。通过用气相色谱质谱联用方法鉴别分解产物的种类和含量。研究结果表明，工频交流击穿或经历200A负载电流开断后，仅有少于1%的CF3I气体被分解。当电流增大到400A时，95%以上的CF3I气体分解为四氟化碳(CF4)和六氟乙烷(C2F6)。通过求解最小Gibbs自由能的方法获得了平衡态CF3I在不同温度下组分分布规律，并以此探讨CF3I分解规律。 |
| 英文摘要: |
| This paper is devoted to detecting decomposition characteristics of Iodotrifluoromethane (CF3I) under load current interruptions. The decomposition products are measured utilizing chromatography-mass spectroscopy. It is found that less than 1% CF3I gas is decomposed after several interruptions at a current of 200 A or hundred times of alternating current (AC) discharges. However, underinterruptions at a current of 400 A, more than 95% CF3I gas is decomposed into carbon tetra?uoride (CF4), hexa?uoroethane (C2F6). The equilibrium compositions based on Gibbs free energy minimization of CF3I were calculated to explain the decomposition mechanism. |
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