比较了石墨含量(质量分数)分别为0、2%、4%、6%和12%的镁碳试样氧化后的质量损失率和脱碳层厚度,并用XRD分析了氧化后试样脱碳部位和未脱碳部位的物相组成,用金相显微镜观察了氧化后试样的形貌.结果表明:质量损失率与石墨含量成正比,石墨含量增加,质量损失率变大;石墨含量低的试样脱碳层厚度比较接近,脱碳层厚度为4～5 mm,比石墨含量为12%的镁碳材料脱碳层厚度小一半,具有明显的抗氧化性能.
参考文献
| [1] | Koji Moriwaki;Yasuhiro Hoshiyama;Osamu Nomura et al.Behavior of metal additives on low-carbon MgO - C bricks[J].Taikabutsu,1997,49(11):600. |
| [2] | S.Yoshida;S.Tsuboi .Corrosion Mechanism of Low-Carbon MgO –C Bricks by Different Low CaO/SiO_2 Slags[J].耐火物,2000(3):135-0. |
| [3] | Yasuhiro Hoshiyama;Koji Moriwaki;Osamu Nomura .MgO-C bricks for treatment of ultra low carbon steel[J].Taikabutsu,1998,50(08):425-426. |
| [4] | 坪井 聪;山下一郎 .Spalling resistance of low-carbon MgO-C brick[J].耐火物,1999(12):638-643. |
| [5] | Li XM.;Palco S.;Rigaud M. .OXIDATION KINETICS OF GRAPHITE PHASE IN MAGNESIA-CARBON REFRACTORIES[J].Journal of the American Ceramic Society,1995(4):965-971. |
| [6] | 杜明玺 .转炉出钢口套管砖用低碳MgO-C砖的开发[J].国外耐火材料,1996,21(04):15-19. |
| [7] | YANG Ding'ao,Yu Zhiming,FAN Liuwu.Al4C3 Hydration Thermochemical Analysis for Burned Carbon-containing Refractories with Al[J].中国耐火材料(英文版),2003(01):19-22. |
| [8] | Shigeki Uchida;Kenji Ichikawa .High-temperature properties of unburned MgO - C bricks containing Al and Si powder[J].Journal of the American Ceramic Society,1998,81(11):2910-2916. |
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