From: Geoffrey J. Gettelfinger
Sent: Wednesday, February 21, 2007 4:19 PM
To: Wayne T. Reiersen; David E. Williamson; Mike Cole; Lawrence E.
Dudek; Michael E. Viola
Subject: CTE end points

Several pieces of Stellaloy sprue and runner scrap had previously been prepped for CTE measurements.  These elements were again tested for changes in size consequent of immersion in liquid nitrogen.

*3 inch block*
Width warm: 2.797"
Width cold after 50 minutes of immersion in LN2 with subsequent boil-down for a "dry" measurement in cold gas: 2.786"
DeltaLoverL=3930E-6

*12 inch sprue*
Length warm: 11.998"
Length cold after 50 minutes of immersion in LN2 with subsequent boil-down for a "dry" measurement in cold gas: 11.964"
DeltaLoverL=2830E-6