Here's one:

Pacific Testing Laboratories, Inc.
www.pacifictesting.com
Phone:  (661)257-1437
Fax:  (661)257-2411


-----Original Message-----
From:   May William D (Dean) CNIN [SMTP:[log in to unmask]]
Sent:   Wednesday, November 03, 1999 9:28 AM
To:     [log in to unmask]
Subject:        [TN] Need of material testing labs

We are in the process of attempting to model printed wiring board buildups
for durability studies.  We are needing a test facility or facilities to
test B-stage and C-stage materials to extract physical and thermal
properties of laminates and copper foils.  Some of the properties needed:

modulus of elasticity
Poisson's ratio
yield strength
true fracture ductility
cyclic strength coefficient
fatigue strength coefficient
fatigue strength exponent
fatigue ductility coefficient
fatigue ductility exponent
transition fatigue life
ultimate strength
percent reduction in area
true fracture strength
cyclic yield strength
strain hardening exponent
glass transition temp
specific heat
density
thermal conductivity
thermal coefficient of expansion


Can anyone suggest a test lab to get such data.  Material suppliers don't
seem to provide such data on the technical data sheets.


Wm. Dean May
NSWC Crane
Bldg. 38, Code 8086
300 Highway 361
Crane, IN 47522
812-854-3073

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