Demagnetizing Neodymium magnets in a candle flame?

[itoero]

Is it possible to partly demagnetize neodymium magnets in the flame of a candle?
Those magnets are made up of Neodymium, Iron and Borium.
They have a Nickel-Copper-Nickel coating.
The Curie temperature for Neodymium magnets is 310-400°C.
Neodymium (magnetic powder) burns but does the coating prevent that?
How does Nickel and Copper react to high temperatures?

 

[scanvas]

The Curious Temp to

partly demagnetize neodymium magnets

is ~ 80-200°C
I suggest a... boiling party ツ