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In Reply to: RE: What may be at work here posted by bartc on March 19, 2009 at 14:59:12
I looked into the composition of the TI-shield. Besides the copper layers the 'alloy 49' used is an alloy of iron and nickel with traces of several other elements. Of course the exact composition of alloy 49 was not available. The TI shield is useful in many applications because it is flexible, thin, and light. I found several sites of contractors who build large rooms shielded by TI Shield, the joints are soldered. Wouldn't it be nice to pick up a few of their scraps? Bill
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TI shield is a triple layer (copper-Alloy49-copper) sandwich. The middle layer is ferrous. There are specific reasons for this that make it a very effective shield and damper, but don't ask me to explain them! I did research these relative to all the correlates of a Farraday Cage, BTW; you can do your own extensive search on that.
TI is expensive and you currently have to order sheets, while you can only use it sparingly without going into sonic loss, instead of gain, so I'd love some of the "scrap"!
I'm not so sure that TI would be good in the application we're discussing, but wouldn't say not to try it if you've got some lying arouns. The previous threads on using TI were pretty consistent (as is my own experience) that grounding with the proper AWG wire enhances TI's benefits.
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