Brock:
Thanks for the interesting information from Yigal Blum. It would be VERY
interesting to do a study/test of these epoxy-filled with ceramic particles
paints and also with Yigal's ceramic fillers and preceramic polymers at
supersonic pressures and elevated surface temperatures, especially with
different substrates such as a stereolithography epoxy. Would Lockheed and
others also be interested in this information?
Regards,
Glenn Whiteside
-----Original Message-----
From: Brock Hinzmann <bhinzmann@sric.sri.com>
To: Monica & Glenn Whiteside <SiderWhite@worldnet.att.net>; Rapid Prototype
Mailing List <rp-ml@ltk.hut.fi>
Date: Friday, December 11, 1998 5:46 PM
Subject: RE: ATTN: Bruce LeMaster RE: SL Epoxy and supersonic air flow
>Yigal,
>
>Do you know anything about the CeRam Kote 54 mentioned below?
>
>Would your preceramic polymer coating be useful for the coating epoxy or
>other RP models for the purposes of testing?
>
>Brock Hinzmann
>SRI Consulting
>a subsidiary of SRI International
>+1 (650) 859-4350
>bhinzmann@sric.sri.com
>-----------------
>Brock,
>I heard about it before but with not many details. We also did some
>technology assessment evaluation (literature) for similar types of advanced
>coatings. The CeRam-Kote is actually an epoxy filled with ceramic
>particles. The use of filled epoxy resin paints is definitely not new but
the type
>of particles, particle preformulation treatment, or even the type of the
>epoxy may provide unique properties. We are working or a
>similar-but-different approach in which we are using ceramic fillers and
preceramic
>polymer as the resin instead of epoxy. We have not used it for coating
epoxy
>thus far, but for coating metals, such as steel and aluminum. The behavior
>under supersonic pressure conditions is unknown. If you are interested in
>technology assessment or development of such coatings we will be glad to
>help!
>
>Yigal Blum
>Chemistry and Chemical Engineering Laboratory
>SRI International
>(formerly the Stanford Research Institute)
>+1 (650) 859-4367
>yigal_blum@qm.sri.com
>
>Monica & Glenn Whiteside wrote:
>>Bruce:
>>
>>There is a ceramic coating that I have been wanting to try for these
>>applications - it's a very durable, wear resistant and flexible coating
>that
>>we have used on some of our stretch-form tooling for wear-resistance
>>coatings. But you will need to seriously beef up the SLA model
>internally
>>so it will not deform and break apart under the supersonic air pressures
>>(fuselage sections might be okay but structures such as wings and
>>vertical/horizontal fins might not survive very easily). The coating is
>>called "CeRam-Kote 54" and it is a spray applied air-cured ceramic epoxy
>>coating. The coating is currently approved for use on all F-15 aircraft
>>leading edges and is currently under testing on B-1 aircraft. It's
>>expensive but it might be worth a try. You can get more information at
>>their web site at: www.ceram-kote.com/aviation.htm
>>Let me know if you try it and what the results were if possible.
>>Some of our NASA friends here on the rp-ml might also be of help.
>>
>>Best Regards,
>>
>>Glenn Whiteside
>>Cessna Aircraft Company
>>e-mail: siderwhite@worldnet.att.net
>>
>>
>>-----Original Message-----
>>From: Bruce E. LeMaster <LeMaster@artcorp.com>
>>To: rp_ml Posting <rp-ml@bart.lpt.fi>
>>Date: Thursday, December 10, 1998 4:35 PM
>>Subject: SL Epoxy and supersonic air flow
>>
>>
>>>Hello all,
>>>
>>>We have a customer that would like to have a SL
>>>model made and then coated with an
>>>as-yet-to-be-determined material and actually test
>>>the model in supersonic flight. We have in the
>>>past plated SL parts with nickel and chrome for
>>>use in wind tunnels (for the same customer) but I
>>>have no idea what goes on at supersonic flows.
>>>
>>>Do any of you have experience with SL parts at
>>>supersonic airflow conditions? Any thoughts on
>>>plating the SL part with some combination of
>>>metals that might strengthen it to withstand the
>>>test environment?
>>>
>>>Thanks in advance.
>>>
>>>Bruce E. LeMaster
>>>--
>>>Applied Rapid Technologies Corporation
>>>265 Cambridge Street, Suite 100
>>>Fredericksburg, Virginia 22405
>>>(540) 371-1100 / (540) 371-4100 fax
>>>Web Page URL: http://www.artcorp.com
>>>
>>>
>>>
>>>For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
>>
>>
>>For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
>>
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>>To: "Rapid Prototype Mailing List" <rp-ml@ltk.hut.fi>
>>Subject: ATTN: Bruce LeMaster RE: SL Epoxy and supersonic air flow
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