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付伟, 宋晓国, 赵一璇, 韩桂海, 冯吉才. Al2O3陶瓷与紫铜的间接钎焊[J]. 焊接学报, 2015, 36(6): 27-30.
引用本文: 付伟, 宋晓国, 赵一璇, 韩桂海, 冯吉才. Al2O3陶瓷与紫铜的间接钎焊[J]. 焊接学报, 2015, 36(6): 27-30.
FU Wei, SONG Xiaoguo, ZHAO Yixuan, HAN Guihai, FENG Jicai. Indirect brazing alumina to copper[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(6): 27-30.
Citation: FU Wei, SONG Xiaoguo, ZHAO Yixuan, HAN Guihai, FENG Jicai. Indirect brazing alumina to copper[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(6): 27-30.

Al2O3陶瓷与紫铜的间接钎焊

Indirect brazing alumina to copper

  • 摘要: 利用Sn0.3Ag0.7Cu-4%Ti金属化涂料,在金属化温度900 ℃、保温时间30 min条件下,对Al2O3陶瓷表面进行金属化处理,然后在钎焊温度600 ℃、保温时间5 min条件下,利用Sn0.3Ag0.7Cu钎料实现Al2O3陶瓷与紫铜的间接钎焊,通过SEM,EDS和XRD等分析测试手段对金属化层显微组织、Al2O3陶瓷/铜接头结合强度和接头断口形貌等进行了分析. 结果表明,利用金属化方法得到了均匀且与Al2O3陶瓷结合良好的金属化层,并实现了Al2O3陶瓷与铜的间接连接,接头界面结构为Cu/Cu3Sn/Cu6Sn5/Sn(s,s)+Ti6Sn5/Al2O3陶瓷. 钎焊接头抗剪强度为13.6 MPa,接头断裂发生于金属间化合物层.

     

    Abstract: The alumina ceramics were metallized by Sn0.3Ag0.7Cu-4%Ti under 900 ℃ and held for 30 min. Then the metallized alumina ceramics were brazed to copper at 600 ℃ for 5 min. The microstructure of metallization layer and shear strength and fracture morphology of brazed joints were analyzed by SEM, EDS and XRD et al. The metallization layer had a sound bond to alumina ceramic by the new metallization method, and the indirect brazing alumina to copper was realized. The interfacial microstructure of alumina/Cu joint was Cu/Cu3Sn/Cu6Sn5/Sn(s,s)+Ti6Sn5/alumina. The shear strength of joint is 13.6 MPa. Fracture analysis showed that joint fracture occurred in intermetallic compound layer.

     

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