Joining of Al2O3 to Kovar using active filler metal of Ag-35mass%Cu-2mass%Ti.
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概要
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Effects of active filler metal composition on the shear strength and reaction products of Al<SUB>2</SUB>O<SUB>3</SUB>-Hovar joints were studied. The variation of microstructures of reaction products formed at the interface between Al<SUB>2</SUB>O<SUB>3</SUB> and active filler metal was investigated by scanning electron microscopy, auger electron microscopy.<BR>Increasing of Cu component in the active filler metal (Ag-35mass%Cu-2mass%Ti) improves shear strength about 210-240MPa of Al<SUB>2</SUB>O<SUB>3</SUB>-Kovar joints brazed at 1123K for 900s and thickness change of active filler metal do not influenced on the shear strength of Al<SUB>2</SUB>O<SUB>3</SUB>-Kovar joint.Reaction layer Ti<SUB>2.9</SUB> (Cu, Al) <SUB>1.9</SUB>O<SUB>1.3</SUB> were formed in the interface between active filler metal and Al<SUB>2</SUB>O<SUB>3</SUB>. High shear strengh of Al<SUB>2</SUB>O<SUB>3</SUB>-Kovar joints are attributed to the formation of these reaction layers.
- 日本素材物性学会の論文
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