C/C复合材料预氧化处理对其SiC-ZrC-ZrB_2涂层抗氧化性能的影响
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摘要
为了实现C/C复合材料氧化防护,对材料表面进行900℃、5 min的预氧化处理,然后应用包埋法在C/C复合材料表面制备SiC-ZrC-ZrB_2涂层。研究预氧化处理对材料微观结构、抗氧化性能和弯曲力学性能的影响。结果表明:预氧化试样涂层与基体间形成嵌入式过渡层结构,材料抗氧化性能得到改善,经1500℃静态氧化4h和8 h后,质量损失率分别为5.73%和10.88%。材料抗氧化性能提升的主要原因是界面的"钉扎效应"和过渡层减小涂层与基体间的热应力。预氧化涂层试样氧化前后弯曲性能增强,经1500℃静态氧化2 h和4 h后,强度保持率分别为104.86%和71.70%,均高于未预氧化涂层试样的。氧化后材料内部结构受损更少以及陶瓷相的增韧作用是预氧化试样弯曲力学性能提升的主要原因。
In order to protect C/C composites from oxidation, the pre-oxidation treatment at 900 ℃ for 5 min was applied to the surface of material, and then, the SiC-ZrC-ZrB_2 coating was prepared on the surface of C/C composites by pack cementation. The effects of pre-oxidation treatment on the microstructure, anti-oxidation properties and flexural mechanical properties of the materials were investigated. The results show that the inlaid transition layer is formed between the coating and substrate in the pre-oxidized sample. The oxidation resistance of the materials is improved, and the mass loss of the materials after 4 h and 8 h oxidation at 1500 ℃ are 5.73% and 10.88%, respectively. The main reason for the improvement of the oxidation resistance of the composites is that the pinning effect of the interface and the transition layer relieves the thermal stress between the coating and substrate. The flexural properties of the pre-oxidized sample are enhanced. After 2 h and 4 h oxidation at 1500 ℃, the flexural strength retentions of samples are 104.86% and71.70%, respectively, which are higher than those without pre-oxidation. The internal structure of the composites after oxidation is less damaged and the toughening of ceramic phase is the main reason for the improvement of the flexural mechanical properties of the pre-oxidized sample.
In order to protect C/C composites from oxidation, the pre-oxidation treatment at 900 ℃ for 5 min was applied to the surface of material, and then, the SiC-ZrC-ZrB_2 coating was prepared on the surface of C/C composites by pack cementation. The effects of pre-oxidation treatment on the microstructure, anti-oxidation properties and flexural mechanical properties of the materials were investigated. The results show that the inlaid transition layer is formed between the coating and substrate in the pre-oxidized sample. The oxidation resistance of the materials is improved, and the mass loss of the materials after 4 h and 8 h oxidation at 1500 ℃ are 5.73% and 10.88%, respectively. The main reason for the improvement of the oxidation resistance of the composites is that the pinning effect of the interface and the transition layer relieves the thermal stress between the coating and substrate. The flexural properties of the pre-oxidized sample are enhanced. After 2 h and 4 h oxidation at 1500 ℃, the flexural strength retentions of samples are 104.86% and71.70%, respectively, which are higher than those without pre-oxidation. The internal structure of the composites after oxidation is less damaged and the toughening of ceramic phase is the main reason for the improvement of the flexural mechanical properties of the pre-oxidized sample.
引文
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[20]曾毅,张武装,熊翔.C/C复合材料Si C/Zr B2-Mo Si2复合涂层的抗氧化机制[J].复合材料学报,2010,27(3):50-55.ZENG Yi,ZHANG Wu-zhuang,XIONG Xiang.Antioxidation mechanisms of the SiC/ZrB2-Mo Si2 coating on the carbon/carbon composites[J].Acta Materiae Compositae Sinica,2010,27(3):50-55.
[21]FU Qian-gang,SHAN Yu-cai,WEN Shi-qi,LI He-jun,CHUYan-hui,LIU Xue-song.Oxidation pre-treatment to improve the mechanical property and oxidation resistance of Si-Mo-Cr coated C/C composites[J].Corrosion Science,2014,83(3):103-110.
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[23]ZHUANG Lei,FU Qian-gang,ZHANG Jia-ping,GUOYong-an,LI He-jun,SHAN Yu-cai.Effect of pre-oxidation treatment on the bonding strength and thermal shock resistance of SiC coating for C/C-Zr C-Si C composites[J].Ceramics International,2015,41(5):6956-6964.
[24]GUO Wei-ming,XIAO Han-ning,YASUDA Eiichi,CHENGYin.Oxidation kinetics and mechanisms of a 2D-C/Ccomposite[J].Carbon,2006,44(15):3269-3276.
[25]房啸,苏哲安,黄启忠,杨鑫.2种C/C材料高温熔渗制备C/C-SiC-ZrC复合材料的力学性能[J].粉末冶金材料科学与工程,2013,18(6):899-905.FANG Xiao,SU Zhe-an,HUANG Qi-zhong,YANG Xin.Mechanical properties of C/C-SiC-ZrC composites prepared by reactive melt infiltration using two kinds of C/Ccomposites[J].Material Science and Engineering of Powder Metallurgy,2013,18(6):899-905.
[2]黄伯云,熊翔.高性能炭/炭航空制动材料的制备技术[M].长沙:湖南科学技术出版社,2006:1-2.HUANG Bai-yun,XIONG Xiang.Manufacturing of carbon/carbon composites for aircraft brakes[M].Changsha:Hunan Science and Technology Publishing House,2006:1-2.
[3]ZHANG Yu-lei,LI He-jun,QIANG Xin-fa,LI Ke-zhi,ZHANG Shou-yang.C/SiC/MoSi2-Si multilayer coatings for carbon/carbon composites for protection against oxidation[J].Corrosion Science,2001,53(11):3840-3844.
[4]HUANG Dong,ZHANG Ming-yu,HUANG Qi-zhong,WANG Li-ping,TANG Xian,YANG Xin,TONG Kai.Fabrication and ablation property of carbon/carbon composites with novel SiC-ZrB2 coating[J].Transactions of Nonferrous Metals Society of China,2015,25(11):3708-3715.
[5]FU Qian-gang,JING Jun-yi,LI He-jun,JIN Xiu-xiu,ZHUANG Lei,LI Lu.Design of an inlaid interface structure to improve the oxidation protective ability of Si C-Mo Si2-Zr B2 coating for C/C composites[J].Ceramics International,2016,42(11):4212-4220.
[6]LI Lu,LI He-jun,SHEN Qing-liang,LIN Hong-jiao,FENGTao,YAO Xi-yuan,FU Qian-gang.Oxidation behavior and microstructure evolution of SiC-ZrB2-ZrC coating for C/Ccomposites at 1673 K[J].Ceramics International,2016,42(11):13041-13046.
[7]NIU Ya-ran,WANG Hong-yan,LIU Zi-wei,HU Cui,WANGXin-gang,ZHENG Xue-bin,DING Chuan-xian.Microstructure evolution of ZrB2-MoSi2 composite coatings at middle and high temperatures[J].Surface&Coatings Technology,2015,273(1):30-38.
[8]CHU Yan-hui,FU Qian-gang,LI He-jun,SHI Xiao-hong,LIKe-zhi,WEN Xue SHANG Gu-nan.Effect of SiC nanowires on the mechanical and oxidation protective ability of Si Ccoating for C/C composites[J].Journal of the American Ceramic Society,2012,95(2):739-745.
[9]LI Jun,LUO Rui-ying,LIN Chen,BI Yan-hong,XIANGQiao.Oxidation resistance of a gradient self-healing coating for carbon/carbon composites[J].Carbon,2007,45(13):2471-2478.
[10]REN Xuan-ru,LI He-jun,CHU Yan-hui,LI Ke-zhi,FUQian-gang.ZrB2-SiC gradient oxidation protective coating for carbon/carbon composites[J].Surface&Coatings Technology,2006,201(6):3491-3495.
[11]SMEACETTO F,SALVO M,FERRARIS M,CASALEGNOV,CANAVESE G,MOSKALEWICZ T,ELLACOTT S,RAWLINGS R D,BOCCACCINI A R.Erosion protective coatings for low density,highly porous carbon/carbon composites[J].Carbon,2009,47(6):1511-1519.
[12]LI Ai-jun,HU Chun-feng,LI Mei-shuan,ZHOU Yan-chun.Joining of Ti-Al-C ceramics by oxidation at low oxygen partial pressure[J].Journal of the European Ceramic Society,2009,29(12):2619-2625.
[13]LEE Seok-hee,YANG Tae-hyun,HYUN Sang-hoon,YOONYoung-soo.Corrosion behavior of pre-oxidized and thermally nitrided stainless steel for polymer electrolyte membrane fuel cell bipolar plates[J].Corrosion Science,2012,58(5):79-85.
[14]HE Pei-gang,CHEN Ke,YANG Jing-lei.Surface modifications of Ti alloy with tunable hierarchical structures and chemistry for improved metal-polymer interface used in deepwater composite riser[J].Applied Surface Science,2015,328(10):614-622.
[15]SMEACETTO F,SALVO M,FERRARIS M.Oxidation protective multilayer coatings for carbon/carbon composites[J].Surface&Coatings Technology,2002,151(4):404-411.
[16]LABRUQUERE S,BLANCHARD H,PAILLER R,NASLAIN R.Enhancement of the oxidation resistance of interfacial area in C/C composites.PartⅡ:Oxidation resistance of B-C,Si-B-C and Si-C coated carbon performs densified with carbon[J].Journal of the European Ceramic Society,2002,22(7):1011-1021.
[17]ZHANG Jia-ping,FU Qian-gang,LI He-jun,SUN Guo-dong,SUN Can,NAN Xiao-ying,LI Shen-fei,LIU Lei.Ablation behavior of Y2SiO5/Si C coating for C/C composites under oxyacetylene torch[J].Corrosion Science,2014,87(5):472-478.
[18]郭伟明,肖汉宁,田荣一安.2D-C/C复合材料氧化动力学模型及其氧化机理[J].复合材料学报,2007,24(1):45-52.GUO Wei-ming,XIAO Han-ning,YASUDA Eiichi.Kinetic model and mechanisms of oxidation of 2D-C/C composite[J].Acta Materiae Compositae Sinica,2007,24(1):45-52.
[19]ZHANG Yu-lei,LI He-jun,FU Qian-gang,LI Ke-zhi,HOUDang-she,FEI Jie.A Si-Mo oxidation protective coating for C/Si C coated carbon/carbon composites[J].Carbon,2007,45(5):1130-1133.
[20]曾毅,张武装,熊翔.C/C复合材料Si C/Zr B2-Mo Si2复合涂层的抗氧化机制[J].复合材料学报,2010,27(3):50-55.ZENG Yi,ZHANG Wu-zhuang,XIONG Xiang.Antioxidation mechanisms of the SiC/ZrB2-Mo Si2 coating on the carbon/carbon composites[J].Acta Materiae Compositae Sinica,2010,27(3):50-55.
[21]FU Qian-gang,SHAN Yu-cai,WEN Shi-qi,LI He-jun,CHUYan-hui,LIU Xue-song.Oxidation pre-treatment to improve the mechanical property and oxidation resistance of Si-Mo-Cr coated C/C composites[J].Corrosion Science,2014,83(3):103-110.
[22]FU Qian-gang,LI He-jun,LI Ke-zhi,SHI Xiao-hong,HUANG Ming.A SiC/glass oxidation protective coating for carbon/carbon composites for application at 1173 K[J].Carbon,2007,45(4):892-894.
[23]ZHUANG Lei,FU Qian-gang,ZHANG Jia-ping,GUOYong-an,LI He-jun,SHAN Yu-cai.Effect of pre-oxidation treatment on the bonding strength and thermal shock resistance of SiC coating for C/C-Zr C-Si C composites[J].Ceramics International,2015,41(5):6956-6964.
[24]GUO Wei-ming,XIAO Han-ning,YASUDA Eiichi,CHENGYin.Oxidation kinetics and mechanisms of a 2D-C/Ccomposite[J].Carbon,2006,44(15):3269-3276.
[25]房啸,苏哲安,黄启忠,杨鑫.2种C/C材料高温熔渗制备C/C-SiC-ZrC复合材料的力学性能[J].粉末冶金材料科学与工程,2013,18(6):899-905.FANG Xiao,SU Zhe-an,HUANG Qi-zhong,YANG Xin.Mechanical properties of C/C-SiC-ZrC composites prepared by reactive melt infiltration using two kinds of C/Ccomposites[J].Material Science and Engineering of Powder Metallurgy,2013,18(6):899-905.