Hi! Sorry for using a technical term that everyone may not be familiar 
     with. The term "hot shortness" comes from the steel industry where a 
     billet of steel will literally fall apart at the grain boundaries 
     because of sulfur contamination. The sulfur contamination allows the 
     grain boundaries to melt slightly letting the grain boundaries slide 
     around. When a solder joint has a "bismuth" addition (Sn/Pb/Bi alloys 
     do their 98 C melting action) a similar sliding action happens and it 
     reminds me of hot shortness.
     
     
     Dave Hillman
     Rockwell Collins
     [log in to unmask]


______________________________ Reply Separator _________________________________
Subject: Hot shortness
Author:  [log in to unmask] ("Dennis Guy-Sell") at ccmgw1
Date:    2/21/97 9:50 AM


     
Dave,
"Hot shortness" is a term with which I am not familiar.  Can you define? 
Thanks
     
Dennis Guy-Sell
EDO Corp
[log in to unmask]
     

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