Are Solder Paste Joins More Brittle Than Regular Solder?
I heard a rumour that solder joins completed with paste are more brittle than usual. In this video I compared the strength of 2 identical rings. One was soldered with paste and the other was soldered with a regular panel of solder.
According to ChatGPT reflooding the join may improve its strength?? -
(The properties of the solder paste can depend on the specific composition of the metal powder and flux used. In general, solder paste joints may be more brittle than joints made with traditional liquid solder. This is because the metal particles in the paste are not as well-bonded as those in liquid solder and may be more prone to cracking or breaking. Additionally, the flux residue that may remain in the solder joint may also contribute to the brittleness.
However, it's worth noting that the brittleness of solder paste joints can be improved by the post-soldering process such as reflow soldering, that can help to improve the metallurgical bond between the metal particles.
It's also important to use the appropriate type of solder paste for the application. It is always best to consult with a professional or the manufacturer for specific recommendations for your application)
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