I have 2 magnets made of Neodymium-Iron Boron which are
2 inch by 2 inch by 1/2 inch and have 70 pounds of pull. If I force
the magnets together into repelling positions with North pole facing
Northpole or South pole facing South pole, how long would it take for
the magnets to degrade in the amount of pounds or MGOe of pull/push?
PS I need this info in regards to an invention I am creating. If it
works, >>I will give a $100 or more donation to Bill Beaty at eskimo.com
who has >>referred me to you depending on how popular it gets. I cannot
describe the >>inventions nature. All I can say is that it will eliminate
more than half >>of the polution we are creating today, and also help with
space >>exploration among other things. Right now, I am struggling to build
it, so >>I cannot donate at this time. I feel that I must complete it by
the end of >>this year.
I know of no easy answer to your question. Different magnets act
differently, and I do not know at what level you consider the magnet
degraded. I recommend that you contact a magnet manufacturer, for example,
Shin-Etsu Chemical, (408-383-9240) and ask them for for specifications on
their magnets. They make very powerful permanent magnets (Nd-Fe-B
types). Magnets degrate over time and with temperature, but the rate
depends on the magnet.
I hope you can find your answer from them and if you do, please let me know
Dr. Ali Khounsary
Click here to return to the Physics Archives
Update: June 2012