TECHNET Archives

December 2001

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
"Wenger, George M." <[log in to unmask]>
Reply To:
TechNet E-Mail Forum.
Date:
Tue, 4 Dec 2001 09:18:15 -0500
Content-Type:
text/plain
Parts/Attachments:
text/plain (88 lines)
I've only had one diet Pepsi but our experience agrees with Doug's; No
it doesn't, no it doesn't, no it's not, yes it will, and no you don't,
respectively.

Regards,
George

George M. Wenger (908)-546-4531 [log in to unmask]
Celiant Corporation
40 Technology Drive
Warren, New Jersey 07059


-----Original Message-----
From: [log in to unmask] [mailto:[log in to unmask]]
Sent: Tuesday, December 04, 2001 8:43 AM
To: [log in to unmask]
Subject: Re: [TN] Red plaque on Silver plated wire?


David Douthit exclaims:

First; trying to grow dendrites in a 85/85 environment is difficult at
best. Dendrites
require liquid water. the free energy at 85 degrees C is to high. It
will
not allow a liquid
water film to form. you must be below 40 degrees C to ensure the
formation
of liquid water.


Doug Pauls, well into his second Mt. Dew of the day, responds:
No it doesn't, no it doesn't, no it's not, yes it will, and no you
don't,
respectively.

It is not hard to grow dendrites, I do it frequently.  Anyone who does
SIR
testing will say the same.  I've even grown dendrites on gold samples.
Dendritic growth takes moisture, bias and an ionic contaminant.  The
greater the magnitude of these factors, the greater the propensity for
dendritic growth.  Yes, most dendritic growth requires liquid water, but
you only need a few molecular thicknesses to do this, which is easily
attained at 85/85.  Yes, liquid water can form at 85/85.  All you need
is a
1-2 degree difference in temperature between the environment and your
substrate and poof, water.   When water forms, temperature wise, depends
on
the relative humidity and the temperature.  SIR testers, if they have
done
it long enough, have had an occasion where power goes out on the chamber
and the temperature drop while the humidity remains high.  You rapidly
reach the dew point well above 40C.

I'm sure Brother Ellis in Cyprus can expound on the physics in greater
depth.

Doug Pauls
Rockwell Collins

------------------------------------------------------------------------
---------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text
in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt delivery of Technet send the following message: SET
Technet NOMAIL
Search previous postings at: www.ipc.org > On-Line Resources & Databases
> E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for
additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700
ext.5315
------------------------------------------------------------------------
---------

---------------------------------------------------------------------------------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL
Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------

ATOM RSS1 RSS2