钎焊
材料科学
微观结构
共晶体系
金属间化合物
抗剪强度(土壤)
合金
复合材料
冶金
填料(材料)
接头(建筑物)
图层(电子)
建筑工程
土壤水分
土壤科学
工程类
环境科学
作者
Mingxu Liu,C.F. Liu,J. Zhang,Rui Tao,Qiang Zhang,Qin Qi
标识
DOI:10.1016/j.jeurceramsoc.2017.10.001
摘要
AlON was successfully brazed to BN-Si3N4 using a Ag-Cu-Ti filler alloy. SEM, TEM and XRD studies revealed that a TiN + TiB2 + Ti5Si3 reaction layer formed adjacent to the BN-Si3N4 while a (Cu,Al)3Ti3O layer formed adjacent to the AlON. In addition, Ag-Cu eutectic, Cu(s,s) and AlCu2Ti were observed in the brazing filler. The effect of brazing temperature on the microstructure and mechanical properties of the joints was investigated. As the brazing temperature increased, the reaction layers became thicker, while the thickness of the brazing seam decreased. Meanwhile, the amount and the size of AlCu2Ti intermetallic compounds decreased. The shear strength of the joints first increased and then dropped with increasing the brazing temperature. A joint with a maximum strength of 94 MPa was obtained when it was brazed at 850 °C for 15 min.
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