| 先驱体转化法制备Diamond/SiC复合材料 |
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| 引用本文： | 杨振亮,何新波,张昊明,曲选辉.先驱体转化法制备Diamond/SiC复合材料[J].稀有金属材料与工程,2011(Z1):383-386. |
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| 作者姓名： | 杨振亮 何新波 张昊明 曲选辉 |
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| 作者单位： | 北京科技大学 |
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| 摘 要： | 以聚碳硅烷(PCS)为先驱体,采用先驱体浸渍裂解工艺(PIP)制备出Diamond/SiC复合材料,重点研究制备工艺参数对复合材料致密度等性能的影响规律。结果表明:PCS裂解产生的β-SiC与基体中α-SiC和Diamond的界面相容性良好,有利于Diamond/SiC的致密化;模压压力、浸渍液浓度以及预氧化处理等制备工艺参数是影响Diamond/SiC复合材料致密度的主要原因;Diamond/SiC多孔坯经7个周期的PIP处理后可成为致密度较高的Diamond/SiC复合材料。
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| 关 键 词： | 先驱体转化法 Diamond/SiC 聚碳硅烷 |
Fabrication of Diamond/SiC Composites by PIP Process |
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| Yang Zhenliang, He Xinbo, Zhang Haoming, Qu Xuanhui.Fabrication of Diamond/SiC Composites by PIP Process[J].Rare Metal Materials and Engineering,2011(Z1):383-386. |
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| Authors: | Yang Zhenliang He Xinbo Zhang Haoming Qu Xuanhui |
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| Affiliation: | (University of Science & Technology Beijing, Beijing 100083, China) |
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| Abstract: | Diamond/SiC composites were fabricated by precursor infiltration and pyrolysis process (PIP) with polycarbosilane (PCS) as a precursor. The effect of the preparation parameters on the densification of the composites was investigated. The results show that the pyrolysis product (β-SiC) exhibits better interfacial compatibility with α-SiC and Diamond in the composites, which is beneficial to the densification of Diamond/SiC composites. The preparation parameters such as compacting pressure and impregnation concentration as well as pre-oxidation treatment are the main factors influencing the density of Diamond/SiC composites. Highly dense Diamond/SiC composites can be obtained by PIP through 7 cycles from porous Diamond/SiC bodies. |
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| Keywords: | precursor infiltration and pyrolysis technology Diamond/SiC PCS |
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