Study of Al₂O₃ ceramic/5005 aluminum alloys high-frequency induction brazed joint

In order to achieve the complete joint of Al₂O₃ ceramics/5005 aluminum alloy at the low temperature, the Al₂O₃ ceramic were metallized with the Ag-Cu-Ti powder. It was shown that a continuous Ti₃Cu₃O reaction layer adjacented to the Al₂O₃ ceramic was confirmed. The interfacial structures and formation of the active metallized Al₂O₃/Al-Si/ 5005 aluminum alloys ceramic high-frequency induction brazed joints were analyzed. It was shown that the microstructure of the 5005 aluminum alloys/Al-Si/Al₂O₃ ceramic joint brazed at 600 ℃ for 1 min was: 5005 aluminum alloys/α-Al+Al-Ag-Cu eutectic +Si crystal /AlSi alloy +α-Al+ξ-Ag₂Al/Ti₃Cu₃O/ Al₂O₃ceramic. The maximum shear strength was 52 MPa.