| 镀TiC金刚石/铝复合材料的热膨胀性能 |
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| 引用本文： | 王新宇,于家康,朱晓敏.镀TiC金刚石/铝复合材料的热膨胀性能[J].特种铸造及有色合金,2011,31(11):1046-1049. |
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| 作者姓名： | 王新宇 于家康 朱晓敏 |
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| 作者单位： | 西北工业大学凝固技术国家重点实验室 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 采用气压浸渗法制备了金刚石体积分数为65%的铝基复合材料,分析了复合材料的显微组织并对热膨胀系数(CTE)进行了测试,研究了镀TiC金刚石/铝复合材料的热膨胀性能。结果表明,金刚石颗粒在铝合金基体中分布均匀,组织致密;TiC镀层有效地改善了金刚石颗粒与铝合金基体间选择性粘结现象,增强了金刚石与基体间的界面结合;镀TiC使复合材料热膨胀系数明显降低,Turner模型和Kerner模型的均值可以预测其热膨胀系数,而对于未镀层的复合材料则可以用Kerner模型进行预测。
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| 关 键 词： | 复合材料 显微组织 镀层 热膨胀系数 |
Thermal Expansion Behevior of TiC-coated Diamond/Al Composites |
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| Wang Xinyu,Yu Jiakang,Zhu Xiaomin.Thermal Expansion Behevior of TiC-coated Diamond/Al Composites[J].Special Casting & Nonferrous Alloys,2011,31(11):1046-1049. |
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| Authors: | Wang Xinyu Yu Jiakang Zhu Xiaomin |
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| Affiliation: | Wang Xinyu,Yu Jiakang,Zhu Xiaomin(State key Laboratory of Solidification Processing,Northwestern Polytechnical University) |
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| Abstract: | The TiC-coated diamond/Al composites with 65% diamond in volume fraction were fabricated by gas pressure infiltration method.The microstructure and coefficient of thermal expansion(CTE) were analyzed and measured,respectively,to understand the thermal expansion behavior of the TiC-coated diamond/Al composites.The results show that the uniform distribution of diamond particles in the Al alloy with compact microstructure can be observed.The TiC coating is considered to improve selective interfacial bonding be... |
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| Keywords: | Composites Microstructure Coating CTE |
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