| Al2O3含量对Ti3SiC2/Al2O3复合材料抗氧化性能的影响 |
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| 引用本文： | 潘丽青,尹洪峰,陈盼军,孙高磊. Al2O3含量对Ti3SiC2/Al2O3复合材料抗氧化性能的影响[J]. 兵器材料科学与工程, 2011, 34(5): 70-74 |
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| 作者姓名： | 潘丽青 尹洪峰 陈盼军 孙高磊 |
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| 作者单位： | 西安建筑科技大学材料科学与工程学院,陕西西安,710055;西安建筑科技大学材料科学与工程学院,陕西西安,710055;西安建筑科技大学材料科学与工程学院,陕西西安,710055;西安建筑科技大学材料科学与工程学院,陕西西安,710055 |
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| 摘 要： | 以Ti、Si、炭黑为原料,通过引入Al2O3,采用热压法制备了Ti3SiC2/Al2O3复合材料。通过X-射线衍射仪、扫描电子显微镜和能谱分析研究了Ti3SiC2/Al2O3复合材料的氧化行为。结果表明:添加Al2O3的试样抗氧化性优于纯Ti3SiC2试样,这是因为在1 300℃之前,形成α-Al2O3、TiO2和SiO2的混合层,且α-Al2O3集中到氧化层表面呈连续分布,形成致密氧化层。而在1 300℃之后试样表面则生成Al2TiO5抗氧化层。
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| 关 键 词： | Ti3SiC2 Al2O3 抗氧化性能 |
Influence of Al_2O_3 content on the oxidation resistance of Ti_3SiC_2/Al_2O_3 composites |
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| PAN Liqing,YIN Hongfeng,CHEN Panjun,SUN Gaolei. Influence of Al_2O_3 content on the oxidation resistance of Ti_3SiC_2/Al_2O_3 composites[J]. Ordnance Material Science and Engineering, 2011, 34(5): 70-74 |
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| Authors: | PAN Liqing YIN Hongfeng CHEN Panjun SUN Gaolei |
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| Affiliation: | (School of Materials Science and Engineering,Xi′an University of Architecture & Technology,Xi′an 710055,China) |
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| Abstract: | Ti3SiC2/Al2O3 composite materials were prepared by hot-pressing,using Ti,Si and carbon black as raw materials and Al2O3 as additive.The isothermal oxidation behavior of Ti3SiC2/Al2O3 composites was investigated by means of XRD,SEM and EDS.The results show that the oxidation resistance of Ti3SiC2/Al2O3 composites is superior to that of pure Ti3SiC2 samples.Below 1 300 ℃,a dense continuous oxide scale consisting of α-Al2O3,TiO2 and little SiO2 is formed on the surface of sample.While the temperature is above 1 300 ℃,another oxidation product Al2TiO5 is formed in the oxide scale. |
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| Keywords: | Ti3SiC2 Al2O3 oxidation resistance |
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