Abstract
Diffusion soldering is a special bonding technique to produce joints at a moderate temperature that are subsequently stable at higher temperatures. The search for material systems extending the upper-temperature limit of stability requires information from the pertinent phase diagrams and the reaction kinetics. Combining experimental studies on phase equilibration in powder samples with bulk and thin-film diffusion couples is a useful approach for a systematic search. Promising candidates for dsoldering are Pt-In or Pd-In, and molybdenum is also an effective diffusion barrier against the attack of liquid tin.
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