I would look at a phenolic resin, rather than an epoxy in this case. Or, if that's not enough, a parylene.
Those will give you the best chemically inert seal.
I assume there will be a more coherent version coming. To help that along, let me add a few things:
What's the outer collar made of? Which way is the magnet poled?
And you should generally make the coil overlong. Helps mechanically and magnetically.
Do you have any literature on this? I would like it when I am discussing people who want to use refrigerator magnets for joint pain, and are convinced of the value of low magnetic fields.
I have been considering your project, and my feelings rhyme with "spoondoggle." If you can't just throw...
Yes, bronze. Again, I would not send a bronze tool INTO the MRI for the same reasons you need a non-conductive table. However, they will be safe to have in the room, as they are nonmagnetic. They are sometimes also listed as "nonsparking" tools - and they are generally the preferred metal for...
It looks like a very early NdFeB magnet (as MagMike said). As he also said, if you want to determine anything useful, you need to go to a reputable vendor to have it tested to determine exactly what it is (in a functional sense) and how it can be replaced. We can perform a non-destructive (okay...
Can I assume you will have a ferrier on site to de-shoe and re-shoe the horses as necessary?
Apart from that, I would say just avoid metals on anything going IN to the MRI, and avoid ferrous metals in the room. (Bronze tooling has regrown to fill this niche market.)
"anti-magnetic?" This is not a commonly used term - could you describe what you are trying to get to?
Taking a stab at it, I think you want to limit yourself to insulating materials, such as plastics, fiberglasses, and ceramics. Even non-magnetic conductors, such as aluminum and 300 SS will...
I assume you have hit up MatWeb already - it does generally do a nice job with thermal properties.
My general experience with carbon fiber is that its thermal expansion is an order of magnitude less than metals (including titanium). I find titanium to be a poor thermal conductor, carbon fiber...
That's a really broad question.
Are you looking for thermal expansion, thermal conductivity, heat capacity? Also, keep in mind that carbon fiber is highly anisotropic.
Let me second dgallup - and I've tested/used a LOT of magnetic software (ANSYS, Opera, AMPERES, COSMOS) and I also consider MagNet my favorite. And definitely spring for the parameterization module.
One other thing: almost all commercial FEA packages will let you do a trial. Since this is a...
huskybuilder,
My turn!
As far as burnout, because I've been there plenty of times. The best answer I have is "get a hobby," but let me elaborate. You need to find some downtime and let yourself recharge. You are constantly emptying the tank, and never taking time to refill it. I have variously...
