Abstract
Ag-based brazing foils, BAg-8 (72Ag–28Cu in wt%) and Ticusil® (68.8Ag–26.7Cu–4.5Ti in wt%) were selected to braze Zr. Interfacial AgCu4Zr, CuZr2 reaction layers and Ag-rich matrix dominate BAg-8 brazed joint, and fractograph after shear test shows ductile dimple fracture with plastic sliding marks. Ticusil® joint brazed at 910 °C for 300 s is comprised of Cu9Zr11 and AgZr intermetallics, and fractograph after shear test displays brittle cleavage fracture.
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