C/C-ZrB_2-SiC复合材料的制备及其性能研究
摘要
采用高固相含量的ZrB_2和SiC混合浆料浸渍C/C坯体,结合先驱体浸渍裂解工艺进一步增密,制备了C/C-ZrB_2-SiC复合材料。研究了复合材料的微观结构、力学性能和抗烧蚀性能。结果表明:ZrB_2和SiC陶瓷相相对均匀的分布在C/C坯体的网胎层和针刺区。C/C-ZrB_2-SiC复合材料具有良好的力学性能,其抗弯强度为325.43 MPa。在氧乙炔火焰2500℃下烧蚀120 s后,复合材料显示了优异的烧蚀性能,其质量烧蚀率和线烧蚀率分别为0.776 mg/s和0.908μm/s。氧化形成的SiO_2和B_2O_3的挥发吸热以及熔融态ZrO_2的阻氧作用是C/C-ZrB_2-SiC复合材料具有良好烧蚀性能的主要原因。
引文
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[2]庞伟林,吴皇,周文艳,等.反应熔渗法制备C/CZrC-Cu复合材料的组织结构与力学性能[J].粉末冶金材料科学与工程,2017,22(2):205-211.
[3]刘诚,冉丽萍,周文艳,等.熔盐法制备C/C复合材料表面MoSi2-SiC涂层的结构与性能[J].粉末冶金材料科学与工程,2016,21(2):347-352.
[4]MANOCHA L M,MANOCHA S,PATEL K B,GLOGAR P.Oxidation behaviour of Carbon/Carbon Composites impregnated with silica and silicon oxycarbide[J].Carbon,2000,38(10):1481-1491.
[5]TANG S,DENG J.Ablation behaviors of ultra-high temperature ceramic composites[J]. Materials Science Engineering A, 2007,465(1-2):1-7.
[6]彭春兰,易茂中,葛毅成,等. C/C复合材料的浸涂抗氧化性能[J].中南工业大学学报,2002,33(1):53-55.
[7]CHEN Z K,XIONG X,HUANG B Y,et al.Oxidation mechanisms of C-SiC-TaC-C composites prepared by chemical vapor infiltration[J].Transactions of Nonferrous Metal Society of China,2007,17(1):145-149.
[8]张虹,白宏德,白书欣,等.改性C/C复合材料快速制备与抗烧蚀性能考核[J].国防科技大学学报,2016,38(1):20-25.
[9]LI H B,ZHANG L T,CHENG L F,et al.Ablation resistance of different coating structures for C/ZrB2-SiC composites under oxyacetylene torch flame[J].International Journal of Applied Ceramic Technology,2009(6):145-150.
[10]李军,杨鑫,刘红卫,等.耐烧蚀超高温陶瓷改性C/C复合材料研究进展[J].中国有色金属学报,2015,25(7):1731-1743.
[11]ZHU S,FAHRENHOLTZ W G,HILMAS G E.Enhanced densification and mechanical properties of ZrB2-SiC processed by a preceramic polymer coating route[J].Scripta Materials,2008,59:123-126.
[12]TONG Y G,BAI S X,YE Y C,et al. Reactive melt infiltration of a ZrB2 modified C/ZrC composite by a eutectic Zr-B alloy[J].Materials Letters,2015,138:208-211.
[13]LI J,YANG X,SU Z A,et al.Effect of ZrC-SiC content on microstructure and ablation properties of C/C composites[J].Transactions of Nonferrous Metals Society of China,2016,26:2653-2664.
[14]熊金松,王玺堂.ZrB2在无机非金属材料中的应用现状[J].武汉科技大学学报,2006,29(3):229-232.
[15]高栋,张跃,许春来,等.ZrB2-SiC超高温陶瓷氧化过程中ZrSiO4相形成机制研究[J].无机材料学报,2011,26(4):433-437.
[16]樊乾国,崔红,闫联生,等.浆料浸渍法制备C/C-SiCZrB2超高温复合材料及其烧蚀性能研究[J].2013,28(9):1014-1018.
[17]TANG S F,DEND J Y,LIU W C,et al.Mechanical and ablation properties of 2D-carbon/carbon composites preinfiltrated with a SiC filler[J].Carbon,2006,44:2877-2882.
[18]HU H F,WANG Q,CHEN Z H,et al.Preparation and characterization of C/SiC-ZrB2 composites by precursor infiltration and pyrolysis process[J].Ceramic Internal,2010,36:1011-1016.
[19]张强,赵景鹏,崔红,等.C/C-ZrB2-SiC复合材料的制备及其性能[J].硅酸盐学报,2016,44(7):1002-1007.
[20]TANG S F,DENG J Y,WANG S J,et al.Comparison of thermal and ablation behaviors of C/SiC composites and C/ZrB2-SiC composites[J].Corrosion Science,2009,51(1):54-61.