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Ceramic Coil Cores?
By BoneHead, Section Mechanical Posted on Wed Sep 28, 2005 at 02:32:04 PM MST
Good idea or bad idea?

I've seen some different stator materials used here but I have a question about hollow core coils. I need to wind a coil a different way for some experimentation. I know liquid plastic would work but at the same time, I was wondering about some ceramic composites.
The ceramic is going to repel heat but will it repel current too like porcelan does? If so, will it naturally repel flux as well? I know they are the same thing in different forms.
Anybody know about this stuff?

Ceramic Coil Cores? | 4 comments (4 topical)

Re: Ceramic Coil Cores? (3.00 / 0) (#1)
by RP on Wed Sep 28, 2005 at 11:11:13 AM MST

Your choice of words is a little confusing. I think you mean the ceramic will insulate against heat and current flow (true). It will have no effect on magnetic flux.

Insulation against any generated heat means that the stator will be less effective at dissipating the heat from the windings.

Re: Ceramic Coil Cores? (3.00 / 0) (#2)
by BoneHead on Wed Sep 28, 2005 at 11:47:55 AM MST

So without some kind of cooling mechanism I would have more of a chance of damaging the stator.

Ok, I appreciate your response. Thanks.

Re: Ceramic Coil Cores? (3.00 / 0) (#3)
by Bruce S on Wed Sep 28, 2005 at 03:18:31 PM MST

If you are intend to use the thin sheets of ceramic found in and around high-temp elecrtonics then yes , this would be a good choice.
The reason being; the thin film's of ceramics are wonderful for dissipating heat. being thin they are great for moving the haet away from the electronics , this is the main reason why computer chip moved to being made with ceramics instead of plastics.
The draw back is the cost. unless you have a kiln and can make your own, special designs will be expensive.

Let us know how it goes.

Bruce S

Re: Ceramic Coil Cores? (3.00 / 0) (#4)
by BoneHead on Wed Sep 28, 2005 at 03:47:40 PM MST

Yeah, that was the idea. What I need only needs to be about 1/16 thick. If it's high strength like zirconia ceramic, it could be even thinner. There's a lady in town with a ceramics shop who would bake it for me but I can't find any mixes for the really good stuff like that. It seems like only the professional fabricators have access to them and even if I found some, I need so little of it, the sale would not be important.

I'm really not sure what to use at the moment but my wire will be here in a week or less, so I guess I better make some kind of decission.

If I run across anything interesting in my tinkering, I'll surely post it here.

Can anyone tell me how accurate the cheap meters are? I'm talking about the $20 or less versions.

[ Parent ]

Ceramic Coil Cores? | 4 comments (4 topical)

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