The C.N.R. Project

How to build a Four-Lamina composite CNR

Created on 05-20-01 - JLN Labs - Last update 09-17-03
All informations in this page are published free and are intended for private/educational purposes and not for commercial applications

Use untwisted carbon fiber, you need only about 200 mm of carbon fiber ( 6000 Filaments (6k) or more ).

I have used Carbon fiber from R&G Faserverbundwerkstoffe ( Ref : 205-105-2 )

or T300 6K from Torayca ( see below )

Torayca from Toray Carbon Fiber America, Inc
Carbon fibers from Torayca ( Products Datasheets )
Fibre Glast ( Carbon fiber )
R&G Faserverbundwerkstoffe ( see Ref : 205-105-2 )
Grafil Inc, Carbon fibers spec sheets

Step 1 : Cut four strips of carbon fiber ( 80 mm length ) and cut two squares of plastic sheet ( 30x30 mm ).

Step 2 :
Place carefully the carbon fiber filaments in ONE LAYER
and fix them with an adhesive tape as shown in the photo above.

Step 3 : Place carefully the strips in a cross shape on one of the piece of plastic.
Put epoxy cement ( two components ) on the other piece of plastic.
Don't put cement in the junctions areas.
Cover the carbon fiber strip with this piece of plastic ( at its center ).

I have used a common two-components epoxy cement for gluing the carbon fiber ( see below )

Step 4: Put this apparatus in the grip of a vice, and tight it very strongly. Wait for a while...

Step 5 : Cut a epoxy board for the mounting support and place the CNR as shown in the photo above.

Step 6 : Mount the CNR apparatus with copper connectors.

Step 7 : Your CNR is now ready for testing...

You will be able to replicate yourself the Chung's Apparent Negative Resistance experiment, with two simple digital multimeters ( one used in Ammeter and the other as Voltmeter ) and a DC power supply ( set as a current generator ).

Good Testing.

See also : CNR v6.0 tests : A four-lamina carbon fiber composite

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