Magnet

Magnet - Data

Here are the properties needed to define a new magnet:

Category	Label	Unit
Description	Name	*
	Family	*
	Author	*
	Manufacturer	*
	Memo	*
Economic	Price	USD/kg
Mechanical data	Mass density	kg/m3
Electrical data	Reference temperature (Tref)	°C
	Isotropic resistivity at Tref.	Ohm*m
	Temperature coefficient at Tref.	1/K
Magnetic data	Reference temperature (Tref)	°C
	Remanent induction Br at Tref	T
	Reverse temperature coefficient α for Br	1/K
	Relative permeability μ _r	1
	Intrinsic Coercivity HcJ at Tref	A/m
	Reverse temperature coefficient b for HcJ	1/K
	Energy product (B.H) max	J/m3
	Normal coercivity field Hcb at Tref	A/m
	Maximum operating temperature	°C
	Curie temperature	°C
Thermal data	Reference temperature (Tref)	°C
	Isotropic thermal conductivity at Tref	W/K/m
	Specific heat at Tref	J/K/Kg

Note: The relations between the remanent induction, the intrinsic coercivity and the temperature are described in advanced section: “Impact of temperature on physical properties”.

Note: The thermal conductivity of the magnet regions is constant whatever is the temperature of the region.