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Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4059
Thanks Proud Mary, this is useful indeed!!!
One thing I might try is insulating a piece of ITO with a very thin layer of silicate, then drying under vacuum or gentle heating to stop it blistering. Then paint phosphors, etc onto that to see if the breakdown strength is any better than Epoxy or BaTiO3.
Come to think of it, mixing BaTiO3 with silicate would probably work even better. Heat it up to the upper Curie point then apply HV field to "pole" the material and gently cool to room temperature. Instant piezos?!
Registered Member #543
Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
I thought the paper's recipe for the silicate semiconductor was perfect for the home constructor, and all sorts of different dopants could be added without difficulty.
As for drying out, the paper was quite clear on prolonged heating at 100 °C - presumably to heat the material no more than absolutely necessary to drive out the water. This could be done on a kind of bain-marie on the kitchen stove, so long as you could stop steam condensing on the glass.
I'm sure all sorts of interesting experiments could be done with the silicate mixtures and ITO glass - or just plain tin oxide coated glass which is easy to produce from readily availlable tin (II) chloride, as you know. I favour microscope slides for this kind of thing.
I know glass is a good dielectric, but I've seen a big marx strike a piece of glass. There was tons of surface tracking. I want to try an experiment myself with a water glass-salt-aluminum foil leyden jar cap with an NST.
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Use water glass as HV insulator?
