| 预氧丝在氧化镁/炭复合材料中的原位碳化及其强化作用 |
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| 引用本文： | 陈康华,刘红卫,汤中华,许雄亮.预氧丝在氧化镁/炭复合材料中的原位碳化及其强化作用[J].中国有色金属学报,1997(3). |
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| 作者姓名： | 陈康华 刘红卫 汤中华 许雄亮 |
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| 作者单位： | 中南工业大学粉末冶金国家重点室验室 |
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| 摘 要： | 研究了碳纤维前驱体即预氧丝在氧化镁／炭复合材料中原位碳化及其强化作用。在氧化镁／炭复合材料中存在铝、镁添加剂时，预氧丝原位碳化后具有碳纤维的强度和强化效果。预氧丝在添加硅粉的氧化镁／炭材料中原位碳化时因与硅反应失去强度，在无抗氧化添加物的氧化镁／炭材料中原位碳化后，预氧丝因氧化失去强度，对基体无强化作用。
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| 关 键 词： | 碳复合材料 耐火材料 碳纤维 碳化 纤维强化 |
IN SITU CARBONIZATION AND REINFORCING EFFECT OF CARBON FIBER PRECURSOR IN MgO C COMPOSITE |
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| Chen Kanghua,Liu Hongwei,Tang Zhonghua,Xu Xiongliang State Key Laboratory for Powder Metallurgy,Central South University of Technology,Changsha.IN SITU CARBONIZATION AND REINFORCING EFFECT OF CARBON FIBER PRECURSOR IN MgO C COMPOSITE[J].The Chinese Journal of Nonferrous Metals,1997(3). |
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| Authors: | Chen Kanghua Liu Hongwei Tang Zhonghua Xu Xiongliang State Key Laboratory for Powder Metallurgy Central South University of Technology Changsha |
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| Affiliation: | Chen Kanghua,Liu Hongwei,Tang Zhonghua,Xu Xiongliang State Key Laboratory for Powder Metallurgy,Central South University of Technology,Changsha 410083 |
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| Abstract: | The in situ carbonization and reinforcing effect of carbon fiber precursor in MgO C composite were investigated. The precursor, after in situ carbonizing in MgO C composite containing Al and Mg powders, has the same strength and reinforcing effect as the carbon fiber. The precursor carbonized in MgO C composite containing silicon powder has very low strength, because of the reaction between the precursor and silicon. Carbonized in MgO C composite without any addition, the precursor has so low strength that it has not positive effect on the strength of the composite. |
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| Keywords: | carbon matrix composite refractory carbon fiber carbonization fiber reinforcement |
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