| 氧化镁-金属(铝、铁)-酚醛树脂烧成体系的形态和强度的关系 |
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| 引用本文： | 姜谦,金日光.氧化镁-金属(铝、铁)-酚醛树脂烧成体系的形态和强度的关系[J].北京化工大学学报(自然科学版),1989(1). |
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| 作者姓名： | 姜谦 金日光 |
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| 作者单位： | 北京化工学院高分子系
(姜谦)，北京化工学院高分子系(金日光) |
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| 摘 要： | 研究了以酚醛树脂作结合剂的MgO-A1和MgO-Fe两个体系的烧成合金的亚微形态和机械强度的关系,考察了体系在高温下、在还原性气氛中发生的反应对形态和机械强度的影响。
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| 关 键 词： | 烧结 形态 抗压强度 氧化镁 铝 铁 酚醛树脂 |
Morphology and Mechanical Strength of MgO-Al and MgO-Fe Mixtures after Heat Treatment |
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| Jiang Qian,Jin Riguang.Morphology and Mechanical Strength of MgO-Al and MgO-Fe Mixtures after Heat Treatment[J].Journal of Beijing University of Chemical Technology,1989(1). |
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| Authors: | Jiang Qian Jin Riguang |
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| Institution: | Department of polymer Science |
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| Abstract: | Morphology and mechanical strength of MgO-Al and MgO-Fe mixtures with phenolic resin as adhesive have been studied. Samples were made through dies and then heat-treated. In revealing chemical reactions in the systems, which occur under the condition of high temperature and reductive atmosphere, the X-ray diffraction analysis and SEM methods were used. It is believed that the destruction mechanism of MgO-C bricks at high temperatures comes from the oxidation of graphite. Some additives, such as Al, proved quite effective in strengthening the oxidation prevention behavior of MgO-C system. However, as some researchers pointed out, Al might react directly with MgO in vacuum at high temperatures, which is destructive to the strength of MgO-C bricks. This has been verified by one of the results of the paper. |
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| Keywords: | sintering morphology compressive strength magnesium oxide alumilium iron phenolic resin |
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