| 高体积分数的 SiCp/Al复合材料的 SPS致密化机理研究 |
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| 引用本文： | 杨梅君,张东明,张联盟,顾晓峰.高体积分数的 SiCp/Al复合材料的 SPS致密化机理研究[J].无机材料学报,2007,22(4):695-700. |
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| 作者姓名： | 杨梅君 张东明 张联盟 顾晓峰 |
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| 作者单位： | 武汉理工大学,材料复合新技术国家重点实验室,武汉,430070 |
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| 摘 要： | 运用放电等离子烧结（SPS）技术制备出体积分数达60％，致密度达99％的SiCp／Al复合材料．从烧结工艺的控制及电场的影响两方面对SPS烧结SiC，／Al复合材料的机理进行了研究，认为SPS烧结SiCp／Al复合材料的致密化过程主要依靠烧结温度、压力及升温速率的合理搭配，使Al熔融粘结SiC颗粒，而又不溢出模具；烧结过程中未发现明显的放电现象，可能由于电场太弱不足以引发放电．
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| 关 键 词： | 放电等离子烧结 SiCp/Al复合材料 烧结工艺 电场 |
| 文章编号： | 1000-324X（2007）04-0695-06 |
| 收稿时间： | 2006-7-28 |
| 修稿时间： | 2006-07-28 |
Consolidating Mechanism of High Volume Fraction of SiCp/Al Composites by SPS |
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| YANG Mei-Jun,ZHANG Dong-Ming,ZHANG Lian-Meng,GU Xiao-Feng.Consolidating Mechanism of High Volume Fraction of SiCp/Al Composites by SPS[J].Journal of Inorganic Materials,2007,22(4):695-700. |
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| Authors: | YANG Mei-Jun ZHANG Dong-Ming ZHANG Lian-Meng GU Xiao-Feng |
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| Affiliation: | State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China |
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| Abstract: | 60vol%SiCp/Al composites with high relative density of 99% were fabricated by spark plasma sintering (SPS). The consolidating mechanism of SiCp/Al composites by SPS was analyzed on two aspects: (1) the adjustment of sintering parameters; (2) the effect of electric field. The results indicate that the consolidating procedure of SiCp/Al composites by SPS is mainly dependent on the proper adjustment of temperature, pressure and heating-rate which make Al melt and adhere SiC particles without spraying out of the graphite dies; no obvious spark appears during the sintering, which may result from the weak electric field. |
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| Keywords: | SPS SiCp/Al composites sintering parameter electric field |
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