Peggy Heer on sat 19 oct 96
Thought some of this would be of interest to some of you. As Always in
Clay Peggy
-----------------------------------
>Date: Fri, 18 Oct 1996 11:38:06 -0400
>From: ACerS Email List Service
>To: p4337@freenet.edmonton.ab.ca
>Subject: Fiber testing meeting at Cocoa Beach 1997
>
>>>From: jrporter@scimail.risc.rockwell.com (John Porter)
>
>Dear fellow researcher:
>
>This letter is from by the members of the ASTM Task Group responsible
>for drafting a new test standard for testing high modulus fibers. We are
>working under the auspices of C28.07, the ceramic matrix composites sub-
>committee of ASTM.
>
>The need for a new standard has become increasingly apparent during some
>recent fiber development programs including NASP, IHPTET and EPM. It was clear
>that different laboratories had adopted different procedures, in part because
>the data gathered was not necessarily being obtained for the same purpose.
>
>The origin of this task group goes back to an ad-hoc meeting that was organized
>by Cindy Lundgren at Dupont, Wilmington, DE in 1991 at which many of the issues
>that are still on the table were first raised. Subsequent to that first
>meeting, this task group was formed and a fiber testing round robin was
>initiated. The results of the round robin largely guided the preparation of our
>draft standard for ASTM.
>
>Recently, our draft standard was circulated to people both within ASTM and to
>our round robin participants. Whereas we can't expect to please all of the
>people all of the time, it does seem that in this case there are well argued
>differences of opinion in the correct approaches to fiber testing that remain
>unresolved. In short, it would appear that the actual test to measure the
>breaking load of a particular filament is relatively non-controversial.
>However, the most appropriate method to measure fiber diameter and to
>statistically treat the sets of filament diameters and breaking loads that
>result from a set of tests is quite controversial.
>
>We, as a task group, therefore would like to reconvene the Wilmington ad-hoc
>group and have another meeting of interested fiber folk coinciding with
>the 1997
>Cocoa Beach ASTM/American Ceramic Society meeting. If we can generate
>sufficient interest, we would like the fiber group to convene on Sunday,
>January
>12 in Cocoa Beach. The agenda will evolve as we ascertain participants'
>particular interests, but we will definitely need to discuss sampling, diameter
>measurement, statistical treatment of populations of diameter and breaking
>load,
>and ease of application vs. statistical rigor etc.
>
>Our goal for this meeting will be to find a consensus that will allow us to
>proceed with the drafting of a new standard that will be accepted by the
>community at large. Although at this point we cannot fix a firm agenda, we
>would like to do so very soon and definitely before people have to commit to
>travel plans. If there are specific items you would like to see on an agenda
>and/or if you would like time to make a presentation, please contact one of us
>by October 23 and we will circulate a draft agenda by October 28. We
>envisage a
>modified Gordon Conference type format of brief presentations with an extended
>discussion after each presentation. We will also plan for a very informal
>"absentee lunchtime poster session" if you wish to contribute but cannot attend
>in person.
>
>We hope that you or a designate will be able to attend the proposed meeting and
>that we will have a useful dialog. If you would just like further information
>when it becomes available, please contact the chair below by October 23. And
>again, if you would like to participate, please contact one of us and please be
>prepared to submit a brief abstract of your proposed contribution. If
>possible,
>e-mail communication is preferred as it will result in a more timely
>dissemination of the final Agenda after October 28.
>
>Finally, please understand that this is not intended to be a forum for
>advertising specific laboratory capabilities or procedures. We hope that all
>contributions will be restricted to those that will guide the development of a
>new standard.
>
>We look forward to seeing as many of you as possible in Cocoa Beach. Thank you
>for your interest and support.
>
>Sincerely
>
>John Porter, Rockwell Science Center, Chair
>(805) 373-4702
>jrporter@scimnail.risc.rockwell.com
>
>Janet Hurst
>NASA LeRC
>(216) 433-3286
>Janet.B.Hurst@lerc.nasa.gov
>
>Bill Hong
>703/578-2826
>whong@ida.org
>
>Mary Lee Gambone
>Wright Laboratories
>937/255-1322
>gambonml@ml.wpafb.af.mil
>
Peggy Heer / Heer Pottery E-Mail p4337@connect.ab.ca
Edmonton AB, Canada
http://www.ffa.ucalgary.ca/artists/pheer/
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