在高真空条件下采用Ti-35Zr-35Ni-15Cu(质量分数/％)钎料对SiC陶瓷进行了钎焊连接,研究了接头界面组织的形成过程以及工艺参数对接头性能的影响.结果表明:钎料与SiC陶瓷发生了复杂的界面反应,生成了多种界面产物.当钎焊温度为960℃,保温时间为10min时,SiC陶瓷侧形成了连续的TiC和Ti5Si3+ Zr2Si层,同时Ti5Si3+Zr2Si向钎缝中心生长呈长条状.SiC陶瓷到接头钎缝中心的显微组织依次为:SiC/TiC/Ti5Si3+ Zr2Si/Zr)s,s)/Ti(s,s)+Ti2 (Cu,Ni)/(Ti,Zr) (Ni,Cu).钎焊温度为960℃,保温时间为30min时,长条状的Ti5Si3+Zr2Si贯穿了整个接头.钎焊接头强度随着钎焊温度的升高和钎焊时间的延长都呈现先增大后减小的趋势.当钎焊温度为960℃,保温时间为10min时,接头的剪切强度最高,达到了110MPa.
参考文献
| [1] | Yupeng Xie;Laifei Cheng;Liangjun Li .Fabrication of laminated SiC_w/SiC ceramic composites by CVI[J].Journal of the European Ceramic Society,2013(10):1701-1706. |
| [2] | 张志金,于晓东,王扬卫,李凯,栾志强.三维网络碳化硅多孔陶瓷的制备[J].航空材料学报,2012(04):57-61. |
| [3] | Wei Wang;Jingbao Lian;Hongqiang Ru .Pressureless sintered SiC matrix toughened by in situ synthesized TiB_2: Process conditions and fracture toughness[J].CERAMICS INTERNATIONAL,2012(3):2079-2085. |
| [4] | 杨利伟,鲍赫.空间光学遥感器SiC反射镜连接技术综述[J].光机电信息,2010(12):56-61. |
| [5] | XIONG H P;LI X H;MAO W et al.Wetting behavior of Co based active alloys on SiC and the interfacial reactions[J].Materials Letters,2003,57(22-23):3417-3421. |
| [6] | LI Z R;WANG Z Z;WU G D et al.Microstructure and mechanical properties of ZrB2-SiC ultra-high-temperature ceramic composites joint using TiZrNiCu filler[J].SCIENCE AND TECHNOLOGY OF WELDING AND JOINING,2011,16(8):697-701. |
| [7] | 李卓然,王征征,吴广东,朱晓智.ZrB2高温陶瓷钎焊接头的界面组织和性能[J].材料工程,2010(10):73-76. |
| [8] | 宋昌宝,林铁松,何鹏,贾德昌.ZrC-SiC复合陶瓷扩散焊接头界面组织及力学性能[J].硅酸盐学报,2014(03):275-279. |
| [9] | LOCATELLI M R;TOMSIA A P;NAKASHIMA K et al.New strategies for joining ceramics for high-temperature applications[J].Key Engineering Materials,1995,111-112:157-190. |
| [10] | Xiaozhou Wang;Jun Wang;Hao Wang .Synthesis of a novel preceramic polymer (V-PMS) and its performance in heat-resistant organic adhesives for joining SiC ceramic[J].Journal of the European Ceramic Society,2012(12):3415-3422. |
| [11] | 陈波,熊华平,程耀永,毛唯,叶雷,李晓红.采用Ag-Cu-Ti钎料钎焊Cf/SiC接头的组织和强度[J].材料工程,2010(10):27-31. |
| [12] | Zhenwen Yang;LiXia Zhang;Xiaoyu Tian.Interfacial microstructure and mechanical properties of TiAl and C/SiC joint brazed with TiH_2-Ni-B brazing powder[J].Materials Characterization,2013:52-59. |
| [13] | 刘岩,黄政仁,刘学建,袁明.采用Ag-Cu-In-Ti焊料连接碳化硅陶瓷[J].无机材料学报,2009(04):817-820. |
| [14] | Singh, M;Asthana, R;Shpargel, TP .Brazing of ceramic-matrix composites to Ti and Hastealloy using Ni-base metallic glass interlayers[J].Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing,2008(1/2):19-30. |
| [15] | Guobiao Lin;Jihua Huang;Hong Zhang .Joints of carbon fiber-reinforced SiC composites to Ti-alloy brazed by Ag-Cu-Ti short carbon fibers[J].Journal of Materials Processing Technology,2007(1/3):256-261. |
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