AN INFLUENCE OF PHASE DEVELOPMENT ON MECHANICAL STRENGTH OF ALUMINA-COPPER JOINT PREPARED BY MOLYMn METHOD
Publish Year: 1386
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJMSEI-4-3_003
تاریخ نمایه سازی: 26 مرداد 1402
Abstract:
Abstract: The effect of phase development on peel strength of alumina-copper metalized joint has
been investigated. The alumina-copper joint was prepared in three stages. The alumina substrate
was, first, metalized at ۱۵۰۰°C in H۲-furnace by a new formulation. In the second step, a nickel
layer was electroplated on the metalized layer with approximately ۱۰µm thickness. Finally, copper
strips were bonded to metalized alumina with Ag-Cu (۷۲-۲۸) filler metal. The peel strength of the
joint was ۹.۵±۰.۵ Kg/cm which shows approximately ۳۰% increase in comparison to previous
works. By study of fracture surface and crack propagation path, it has been concluded that this
increase is due to the formation of more spinel phase.
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