以三维针刺碳毡作为预制体,采用树脂浸渍一热解工艺制备C/C多孔体,然后采用反应熔体浸渍法(Re-active melt infiltration,RMI)对C/C多孔体分别浸渗Si和Si-Mo合金制备C/Sic复合材料.首先研究了C/C多孔体制备过程中的显微结构演变.结果表明,浸渍过程中树脂主要填充在纤维束内小孔隙中;热解后裂纹增多,生成网格状C/C亚结构单元;高温热处理使C/C复合材料裂纹进一步扩展,石墨化度提高,束内闭气孔打开,从而为RMI渗Si提供通道.然后对C/C多孔体分别渗Si和Si-Mo合金所得材料的物相组成和显微结构进行对比分析.发现纯Si浸渗得到的复合材料残余Si较多,束内纤维受损严重;而浸渗Si-Mo合金可以减少残余Si含量,束内纤维受损轻微,仍保持着完整的C/C亚结构单元.
参考文献
[1] | Krenkel W,Heldenreich B,Renz R.C/C-SiC composites for advanced friction systems[J].Advanced Engineering Materials,2002,4(7):427-436. |
[2] | Vaidyaraman S,Purdy M,Walker T,et al.C/SiC material evaluation for aircraft brake applications[C]// High Temperature Ceramic Matrix Composites:4th International Conference on High Temperature Ceramic Matrix Composites (HT-CMC4) Proceedings.Weinheim:Federal Republic of Germany,2001:802-808. |
[3] | Krenkel W,Henke T.Design of high performance CMC brake disks[J].Key Engineering Materials,1999,164/165(4):421-424. |
[4] | 肖鹏,熊翔,张红波.C/C-SiC陶瓷制动材料的研究现状与应用[J].中国有色金属学报,2005,15(5):667-674.Xiao Peng,Xiong Xiang,Zhang Hongbo.Progress and application of C/C-SiC ceramic braking materials[J].The Chinese Journal of Nonferrous Metals,2005,15(5):667-674. |
[5] | 徐永东,张立同,成来飞.碳/碳化硅摩阻复合材料的研究进展[J].硅酸盐学报,2006,34(8);992-999.Xu Yongdong,Zhang Litong,Cheng Laifei.Research progress on carbon/silicon carbide friction composite[J].Journal of the Chinese Ceramic Society,2006,34(8):992-999. |
[6] | 田广来,徐永东,范尚武.高性能C/SiC刹车材料及其优化设计[J].复合材料学报,2008,25(2);101-108.Tian Guanglai,Xu Yongdong,Fan Shangwu.High performance C/SiC brake materials and optimizing design[J].Acta Materiae Compositae Sinica,2008,25(2):101-108. |
[7] | Pak Z S.Cf/SiC/C composites for frictional application[C]//High Temperature Ceramic Matrix Composites:4th International Conference on High Temperature Ceramic Matrix Composites (HT-CMC4) Proceedings.Weinheim:Federal Republic of Germany,2001:820-825. |
[8] | Wielage B.A cost effective route for the densification of carbon-carbon composites[J].Journal of Materials Processing Technology,2003,132(1):313-322. |
[9] | Schulte J,Zern A,Mayer J.The crack evolution on the atomistic scale during the pyrolysis of carbon fibre reinforced plastics to carbon/carbon composites[J].Composites Part A,2007,38(10):2237-2244. |
[10] | 张亚妮,徐永东,高列义.基于酚醛树脂的碳/碳复合材料在高温分解过程的微结构演变[J].复合材料学报,2006,23(1):37-43.Zhang Yani,Xu Yongdong,Gao Lieyi.Microstructuralevolution of phenolic resin-based carbon/carbon composites during pyrolysis[J].Acta Materiae Compositae Sinica,2006,23(1):37-43. |
[11] | Cordt Z,Heino S.Microstructure and phase morphology of wood derived biomorphous Si/SiC-ceramics[J].Journal of the European Ceramic Society,2004,24(2):495-506. |
[12] | 徐芳,张立同,孟祥康.碳/碳化硅刹车材料的显微结构分析[J].无机材料学报,2008,23(2);233-237.Xu Fang,Zhang Litong,Meng Xiangkang.Microstructure of C/SiC braking material[J].Journal of Inorganic Materials,2008,23(2):233-237. |
[13] | Frie M,Krenkel W,Brandt R,et al.Influence of process parameters on the thermophysical properties of C/C-SiC[C]// High Temperature Ceramic Matrix Composites:4th International Conference on High Temperature Ceramic Matrix Composites (HT-CMC4) Proceedings.Weinheim:Federal Republic of Germany,2001:328-333. |
[14] | 黄发荣,焦杨声.酚醛树脂及其应用[M].北京:化学工业出版社,2003:433-434. |
[15] | 王林山.RMI法制备C/C-SiC复合材料及其性能的研究[D].长沙:中南大学,2003:35-37. |
[16] | Krenkel W.Microstructure tailoring of C/C-SiC composites[J].Ceramic Engineering and Science Proceedings,2003,24(4):471-476. |
[17] | 杨海波.Mo-Si系金属硅化物组织结构与力学行为的研究[D].上海;上海交通大学,2006:12-13. |
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