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The joining of alumina with the compounds Ti 4 Cu 2 O and Ti 3 Cu 3 O, which are normally found as reaction products in conventional active metal brazing, has been demonstrated. The final phase assemblages correspond to those expected based on the TiCuO ternary phase diagram. No cavitation is observed at the interfaces in the final microstructure. While the samples are robust under normal handling, many joints failed during preparation of mechanical test specimens and those few that remained exhibited very low four-point bend strengths. |
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