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Engineering360: "Six Things You Should Know About Syntactic Foam: A Primer"

06/22/2017 10:40 AM

Read Engineering360 article: Six Things You Should Know About Syntactic Foam: A Primer.

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#1

Re: Six Things You Should Know About Syntactic Foam: A Primer

06/22/2017 3:01 PM

Ok, I will bite. Where can I get some of this for use in my next calorimeter set up?

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#2
In reply to #1

Re: Six Things You Should Know About Syntactic Foam: A Primer

06/23/2017 10:31 AM

Ever experimented with the "Six degrees" concept...(?)

Do you "Facebook"...?...(I don't).

They [^^^] are getting-into-it with a new division in Houston {which is where a lot of what WE see comes from).

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#3
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Re: Six Things You Should Know About Syntactic Foam: A Primer

06/23/2017 12:25 PM

Are you saying that what goes around, keeps going around? What about Home Despot? Do they have it yet?

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#4
In reply to #3

Re: Six Things You Should Know About Syntactic Foam: A Primer

06/23/2017 1:04 PM

Er ... actually, re-reading here, I was probably (unwittingly) "mis"-leading you {without having ASKED: "what size/type/kind/genre of calorimeter?"}.

Now , guessing that you do NOT require the "subsea_HD" variant of said foam (such as that used to repair "floatation/buoyancy modules"...)

I'll bet dollars-to-doughnuts that Home Depot ("etc") do NOT carry such a product (yet). But, I'll bet you have the knowledge and wherewithal to concoct your own version, suitable to your application.

In all probability, you will not require the *large* ('plastic') spheres, as used above, but merely the "microspheres", which are available from a multiplicity of sources, including {as shared elsewhere, here} my personal favorite spot for 'glassing/kevlar/carbon fiber needs: Fiberglast.com

.... but, then again ... I have been wrong before ... ...(?)

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#5
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Re: Six Things You Should Know About Syntactic Foam: A Primer

06/23/2017 1:33 PM

That could work, what I am going to fabricate is a small bomb calorimeter, typically useful for determining the BTU value of fuels.

I can see the vessel that contains the water (that immerses the "bomb container") being nested into another container, and insulated with some of those beads, with a layer of fiberfrax resting on a thin sheet of plastic (maybe even styrofoam), with another sheet resting on top of the fiberfrax. But this can easily turn into overkill, so first pass will be entirely styrofoam, with a keen eye toward the rate that temperature drops off after ignition of the fuel/oxygen mixture.

Another set-up will be for measurement of hydrogen-oxygen stoichiometric + X (unknown oxy-hydrogen compound(s)) flame velocity. I understand that these flame velocities can be up to 100 ft/sec under some conditions. I may utilize a PIN photo-detector, as long as the response times are good with the expected shock wave.

The apparatus is really pretty simple on flame velocity, a long clear plastic (polycarbonate) tube. Well-placed photo-detectors with a timing circuit that can catch things down in the low milliseconds of elapsed time, and we are good.

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#6

Re: Six Things You Should Know About Syntactic Foam: A Primer

06/24/2017 12:03 AM

Syntactic foam is an industrial B2B material. If you perform a basic search, you will find the major companies offering this product in various forms.

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#7
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Re: Six Things You Should Know About Syntactic Foam: A Primer

06/26/2017 9:21 AM

Thanks.

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