采用Ti-Zr-Ni-Cu钎料对ZrB2-SiC陶瓷的真空钎焊工艺进行研究.借助SEM,EDS和XRD等分析测试手段,分析了接头的界面组织结构及性能.实验结果表明:接头界面产物主要有TiC,ZrC,Ti5Si3,Zr2Si,Zr(s,s),(Ti,Zr)(Ni,Cu)等.随着钎焊温度和钎焊保温时间的增加,钎焊接头中的Zr(s,s)层厚度不断增加,焊缝两侧灰色相Ti5Si3+Zr2Si的体积和数量逐渐增加并向焊缝中部生长伸展,焊缝接头中的黑色相TiC+ZrC的体积和数量明显增加,其分布贯穿整个焊缝.当钎焊温度为920℃,钎焊时间为10min时,钎焊接头的抗剪切强度最高,达到143.5MPa.
参考文献
| [1] | Wang CR.;Yang JM.;Hoffman W. .Thermal stability of refractory carbide/boride composites[J].Materials Chemistry and Physics,2002(3):272-281. |
| [2] | ZHAO H;HE Y;JIN Z et al.Preparation of zirconium boride powder[J].Journal of the American Ceramic Society,1995,78(09):2534-2536. |
| [3] | 李金平,韩杰才,李庆芬,孟松鹤,张幸红.ZrB2-SiCW超高温陶瓷材料的研究[J].兵器材料科学与工程,2006(01):53-56. |
| [4] | XIONG H;LI X;CHENG Y et al.Wetting behavior of Co based active alloys on SiC and the interfacial reactions[J].Materials Letters,2003,57:3417-3421. |
| [5] | 张小勇,楚建新.CuAlSiTi系活性钎料对SiC陶瓷的润湿性[J].稀有金属,2002(05):327-331. |
| [6] | 任家烈;吴爱萍.先进材料的连接[M].北京:机械工业出版社,2000:261-267. |
| [7] | PIPPEL E;WOLTERSDORF J;COLOMBO P et al.Structure and composition of interlayer's in joints between SiC bodies[J].Journal of the European Ceramic Society,1997,17(10):1259-1265. |
| [8] | Alberto Passerone;Maria Luigia Muolo;Rada Novakovic .Liquid metal/ceramic interactions in the (Cu, Ag, Au)/ZrB_2 systems[J].Journal of the European Ceramic Society,2007(10):3277-3285. |
| [9] | M. Singh;R. Asthana .Joining of zirconium diboride-based ultra high-temperature ceramic composites using metallic glass interlayers[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2007(0):153-162. |
| [10] | FERRARIS M;SALVO M;ISOLA C et al.Glass-ceramic joining and coating of SiC/SiC for fusion applications[J].Journal of Nuclear Materials,1998,258-263(10):1546-1550. |
| [11] | 李树杰,张利.SiC基材料自身及其与金属的连接[J].粉末冶金技术,2004(02):91-97. |
| [12] | 周颖 .用功能梯度材料连接SiC陶瓷和Ni基高温合金[D].北京航空航天大学,1999. |
| [13] | 段辉平,李树杰,张永刚,刘深,张艳,党紫九,刘登科.SiC陶瓷与镍基高温合金的热压反应烧结连接[J].稀有金属,1999(05):326-330. |
| [14] | Qiang Liu;Wenbo Han;Xinghong Zhang;Shuo Wang;Jiecai Han .Microstructure and mechanical properties of ZrB_2-SiC composites[J].Materials Letters,2009(15):1323-1325. |
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