摘要
采用热重分析方法研究了600~750℃温度范围内,空气流速在1~10L/min范围内变化时IG-110核级石墨的氧化行为,分析了气体流速和温度对氧化速率的影响,并计算了相应的氧化动力学参数。实验结果表明IG-110石墨在空气中的氧化速率同时与反应温度和气体流速成正比,其中后者的影响效应随着温度的升高而增大。但相对来讲,在实验考察范围内,气流速度对IG-110石墨氧化速率的影响作用较弱,与温度升高带来的影响相比可以忽略。
This study investigated the air oxidation behavior of IG 110 nuclear grade graphite at 600-750℃lot gas flow rates of 1-10 L/rain to calculate the kinetics parameters. The results indicate that the oxidation rate of IG-110 graphite increases with both temperature and flow rate, with the flow rate having a stronger effect at higher temperatures. However, the effect of the flow rate on the oxidation rate is much smaller than the effect of temperature.
出处
《清华大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2012年第4期504-507,512,共5页
Journal of Tsinghua University(Science and Technology)
关键词
气体流速
温度
核级石墨
氧化
flow rate
temperature
nuclear graphite
oxidation