Abstract
Si 3N 4 (SN-281)/Cu-clad-Mo joints, brazed using a soft (YS: 341 MPa) and ductile (43% elongation) Pd–Co braze were sound and exhibited an interaction zone comprised of Pd 66Mo 14Cu 10Co 6Si 3 and Pd 74Mo 11Co 8Cu 6Si. Similar joints made using a less ductile and stronger Pd–Ni braze led to cracking from large CTE mismatch-induced strain energy (∼64 mJ to 348 mJ).
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