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March 2006

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Subject:
From:
Werner Engelmaier <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, [log in to unmask]
Date:
Wed, 22 Mar 2006 21:22:05 EST
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Hi All,
Has anybody measured the CTE's of NELCO N4000-13 and can share the results?
CTE x/y is given as 10 to 14 ppm/C, which appears rather low. [When we
measured the equally loe CTE's for some ISOLA materials, we found them to be way too
low].
Also, Nelco gives the z-expasion in that stupid non-linear 50 to 260C range
instead of the alpha-1 and alpha-2 values--anybody measured those?
Further, the modulus of elasticity is given as 4.2 Mpsi--also very high.



Werner

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