Vermonts - Lamination Issues Pubblico Deposited
- From johnmenc@optonline.net Tue Apr 30 07:22:34 2013
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Date: Tue, 30 Apr 2013 14:22:30 -0000
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From: "colonialjohn" <johnmenc@optonline.net>
Subject: Vermonts - Lamination Issues
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Sometime in 2013 I do plan to do a microstructure analysis (SEM/EDS) on WHY=
Vermonts laminate/peel more than any other U.S. Colonial issue.Sure improp=
er alloy mixing, poor annealing, contamination and/or trapped oxygen in the=
blank making process ... but what is EAXACTLY going on here on the surface=
and core of these pieces? You really only need one low graded issue that c=
an be sliced in HALF <BG>.
JPL
--- In colonial-coins@yahoogroups.com, "Byron" <bkw11@...> wrote:
>
> Am I on the right egroup?!
>=20
> --- In colonial-coins@yahoogroups.com, "colonialjohn" <johnmenc@> wrote:
> >
> > Since phenolic and formaledehyde type resins are ORGANIC they are outsi=
de the scope of plastic determination of the Orbis and XRF since we are dea=
ling with INORGANICS only. The Mg and Al in the plastic are probably minor =
constituents Phil and Dan - possibly side chain constituents and in trace l=
evels (<1%) - I did get calibration error readings for the platic concentri=
c disc which is part of this 1942 family of U.S. Mint patterns - but the cl=
ient wanted to see some analysis since he waited five years to test this pi=
ece. Again - the metal experimental like the CW picture link did read well =
- as previously indicated.
> >=20
> > JPL
> >=20
> > --- In colonial-coins@yahoogroups.com, colonial-coins@yahoogroups.com w=
rote:
> > >
> > >=20
> > > Hello,
> > >=20
> > > This email message is a notification to let you know that
> > > a file has been uploaded to the Files area of the colonial-coins=20
> > > group.
> > >=20
> > > File : /XRF Coin Analysis Sheet.1942 Judd Pattern.xls=20
> > > Uploaded by : colonial_john_c4 <johnmenc@>=20
> > > Description : 1942 Judd Pattern Study=20
> > >=20
> > > You can access this file at the URL:
> > > http://groups.yahoo.com/group/colonial-coins/files/XRF%20Coin%20Analy=
sis%20Sheet.1942%20Judd%20Pattern.xls=20
> > >=20
> > > To learn more about file sharing for your group, please visit:
> > > http://help.yahoo.com/l/us/yahoo/groups/original/members/web/index.ht=
ml
> > > Regards,
> > >=20
> > > colonial_john_c4 <johnmenc@>
> > >
> >
> - 2013-04-30
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