摘要
固定主要原料烧结板状刚玉、锆莫来石、石墨 ,添加剂Al粉、Si粉以及结合剂热固性酚醛树脂等的加入量 ,加入不同量的Mn配制成Mn、C质量比不同的Al2 O3-ZrO2 -C试样 ,埋炭烧成后检测各试样的抗氧化性。结果表明 :试样的氧化层厚度先随Mn加入量的增加 (即Mn与C质量比的增大 )而减小 ,即抗氧化性提高 ;至Mn与C质量比为 1 4时 ,氧化层厚度最小 ,即抗氧化性最佳 ;当Mn含量继续增加时 ,氧化层厚度又开始增加 。
The Al 2O 3-ZrO 2-C materials with different mass ratios of Mn to C were prepared using sintered tabular corundum,zirconia-mullite and natural flaky graphite as raw materials,Al and Si as additives and phenolic resin as binder,which contents were fixed.The effect of manganese content on the oxidation resistance of the materials was studied.The results show that the thickness of the oxidation layer decreases initially with increasing the manganese content,and the oxidized thickness increases with the further increase of manganese content.When the mass ratio of manganese to carbon is 14,the oxidation resistance of the material is the best.
出处
《耐火材料》
CAS
北大核心
2004年第4期252-254,257,共4页
Refractories
