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OALib Journal期刊
ISSN: 2333-9721
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高炉炉缸炭砖的抗氧化性能
DOI: 10.14062/j.issn.0454-5648.2015.03.16
Abstract:
借助于热力学分析和氧化性能实验，研究了高炉炉缸用炭砖在空气气氛下的氧化行为和氧化动力学。结果表明，炭砖的质量损失主要来自于石墨C氧化，质量损失量随温度升高、保温时间延长而增大。炭砖的氧化过程属于连续型氧化，而非保护型氧化。在800~1200℃时，氧化过程的控速环节为碳氧界面反应控速，氧化反应的活化能为5586.76J/mol。石墨C氧化将导致炭砖内部形成多气孔的氧化层，随温度升高和时间增加，氧化层面积增大，材料耐压强度和密度降低。
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