为研究Pd基钎料钎焊SiC陶瓷与其他材料的接合机制,研究了PdAgMn+Ti钎料对SiC陶瓷的润湿规律,发现元素Ti显著影响钎料对SiC陶瓷的润湿性.通过X射线衍射仪对润湿界面进行了观察,发现在钎料与SiC润湿界面存在Pd和Si 的化合物Pd100-xSix以及TiC.说明PdAgMn+Ti能够润湿SiC陶瓷,并与SiC陶瓷形成冶金结合.用PdAgMn钎料对两种SiC样品在同样温度条件下作了高真空,低真空润湿试验.一种是在高真空中处理的涂Ti的SiC样品;另一种是不涂Ti的SiC样品.结果在高真空和低真空两种试验条件下,PdAgMn钎料对高温处理的涂Ti的SiC样品均润湿良好,而对不涂Ti的SiC样品不润湿.实验结果说明PdAgMn合金对涂Ti的SiC样品表面的润湿其实就是对TiC表面的润湿,TiC的形成是Pd合金润湿SiC陶瓷的必要条件.
参考文献
| [1] | Xiong Huaping;Li Xiaohong;Mao Wei;Cheng Yaoyong .Wetting behavior of Co based active brazing alloys on SiC and the interfacial reactions[J].Materials Letters,2003,57(22-23):3417. |
| [2] | P. Prakash;T. Mohandas;P. Dharma Raju .Microstructural Characterization of SiC Ceramic and SiC-Metal Active Metal Brazed Joints[J].Scripta materialia,2005(11):1169-1173. |
| [3] | Hua-Ping Xiong;Bo Chen;Yan-Sheng Kang .Wettability of Co-V. and PdNi-Cr-V system alloys on SiC ceramic and interfacial reactions[J].Scripta materialia,2007(2):173-176. |
| [4] | 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. |
| [5] | Lee HK.;Lee JY. .A STUDY OF THE WETTING, MICROSTRUCTURE AND BOND STRENGTH IN BRAZING SIC BY CU-X(X=TI,V,NB,CR) ALLOYS[J].Journal of Materials Science,1996(15):4133-4140. |
| [6] | R. Voytovych;F. Robaut;N. Eustathopoulos .The relation between wetting and interfacial chemistry in the CuAgTi/alumina system[J].Acta materialia,2006(8):2205-2214. |
| [7] | P. Prakash;T. Mohandas;P. Dharma Raju .Microstructural Characterization of SiC Ceramic and SiC-Metal Active Metal Brazed Joints[J].Scripta materialia,2005(11):1169-1173. |
| [8] | Chuang T.H.;Yeh M.S. .Brazing of Zirconia with AgCuTi and SnAgTi Active Filler Metals[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2000(6):1591-1597. |
| [9] | O. Smorygo;J.S. Kim;M.D. Kim .Evolution of the interlayer microstructure and the fracture modes of the zirconia/Cu-Ag-Ti filler/Ti active brazing joints[J].Materials Letters,2007(2):613-616. |
| [10] | Rp Schaefer;Flynn J E;Doyle J R .Brazing filler metal evaluation for an aircraft gas turbine engine application[J].Welding Journal,1971,50:S394. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%