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Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4062
Hi all.
So, I discovered the hard way that just because something is initially stable over small areas does *NOT* mean it works on a larger area.
case in point, my cunning graphite+tyre repair RTV glue trick. Works fine on a small piece, as soon as you scale it up it breaks. Appears that the glue affects the e-ink and renders it inert if left liquid for any time. No amount of heating will make it work after that :(
That said, it could be useful if you happen to need a large volume conductor (say for a pressure sensor, electrostatic accelerator electrode, etc) as the materials are cheap and readily available.
these guys seem to have a material that assembles in the Z axis as conductive columns when exposed to a magnetic field, never heard of anything like this. Molecular self assembly anyone? :)
I did wonder about making a homemade EL or OLED sheet however, as it would probably work for this. the (now useless) front ITO could be repurposed fairly simply. Currently waiting for some to dry, to see if SrAlEuO5 glows when AC applied.
then there's the cunning "apply high electrostatic field while it is setting" trick to optimise conductivity in one direction by orienting the particles, perhaps locate some finely ground piezoelectric materials and homebrew a speaker?
to connect to that use conductive threads embedded in the material, this worked well for my flatscreen kludge with silver paint.
i am getting about 0.2k per cm with graphite, seems a bit high but that could be the distribution. perhaps i need to try the static field and see what that does?
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E-ink issues and Z axis materials
