sci.physics.electromag

On Wed, 28 Nov 2007 14:54:18 -0800 (PST), "Autymn D. C."
wrote:

>On Nov 26, 7:01 pm, "Don Kelly" wrote:
>> ----------------------------
>> "Green Xenon [Radium]" wrote in messagenews:474a1171$0$2336$4c368faf@roadrunner.com...
>>
>>
>>
>> > Hi:
>>
>> > Dielectric strength = the maximum electric field strength that a material
>> > can withstand without breaking down
>>
>> > Dimagnetic strength = the maximum magnetic field strength that a material
>> > can withstand without breaking down
>>
>> > Dielectric breakdown causes an insulator to lose its insulating
>> > properties.
>>
>> > What would dimagnetic breakdown cause?
>>
>> > Dielectric strength is measured in MV/m. What is dimagnetic strength
>> > measured in? MA/m?
>
>> You are talking about some breakdown in magnetic materials corresponding to
>> breakdown in insulators. However you are trying to draw parallels where they
>> don't exist. Any applied H (amp-turns/meter) will cause some flux or change
>> in flux. On that basis the "dimagnetic strength" that you have defined is
>> universally 0 and universally meaningless.
>
>coercivity, dolt

---
Nope, dope.

While (with some exceptions) dielectric breakdown causes an
insulator to irreversibly lose its properties as an insulator, (like
you can't uncook an egg) if an adequately intense magnetic field is
used to overcome the coercivity of a magnet, all that's needed to
turn it into a magnet again is to remagnetize it.

Here:

http://en.wikipedia.org/wiki/Coercivity


--
JF