Modelica.Magnetic.FluxTubes.Material.HardMagnetic

Characteristics of common permanent magnetic materials (temperature dependence considered)

Information


Typical values for remanence, coercivity and the temperature coefficient of remanence are provided for the common permanent magnetic materials illustrated below.

Demagnetization characteristics of included permanent magnetic materials

Linear demagnetization curves are modelled. The characteristic, temperature-dependent "knee" of many permanent magnetic materials is not considered, since proper design of permanent magnetic circuits should avoid operation of permanent magnets "below" that point due to partial demagnetization. As a result, the temperature coefficient of coercivity is not considered. Only the temperature coefficient of remanence alpha_Br is accounted for, since it describes the dependence of the demagnetization curve on the temperature sufficiently for the region "above the knee-point".

Additional user-specific materials can be defined as needed.

Extends from Modelica.Icons.MaterialPropertiesPackage (Icon for package containing property classes).

Package Content

NameDescription
Modelica.Magnetic.FluxTubes.Material.HardMagnetic.BaseData BaseData Record for permanent magnetic material data
Modelica.Magnetic.FluxTubes.Material.HardMagnetic.NdFeB NdFeB NdFeB sintered; exemplary values
Modelica.Magnetic.FluxTubes.Material.HardMagnetic.Sm2Co17 Sm2Co17 Sm2Co17 sintered, exemplary values
Modelica.Magnetic.FluxTubes.Material.HardMagnetic.SmCo5 SmCo5 SmCo5 sintered, exemplary values
Modelica.Magnetic.FluxTubes.Material.HardMagnetic.PlasticNdFeB PlasticNdFeB Plastic-bonded NdFeB, exemplary values
Modelica.Magnetic.FluxTubes.Material.HardMagnetic.PlasticSmCo PlasticSmCo Plastic-bonded Sm-Co, exemplary values
Modelica.Magnetic.FluxTubes.Material.HardMagnetic.HardFerrite HardFerrite Hard ferrite sintered, exemplary values
Modelica.Magnetic.FluxTubes.Material.HardMagnetic.PlasticHardFerrite PlasticHardFerrite Plastic-bonded hard ferrite, exemplary values

Modelica.Magnetic.FluxTubes.Material.HardMagnetic.BaseData Modelica.Magnetic.FluxTubes.Material.HardMagnetic.BaseData

Record for permanent magnetic material data

Information


Please refer to the description of the enclosing package HardMagnetic for a description of all permanent magnetic material characteristics of this package.

Extends from Modelica.Icons.Record (Icon for records).

Parameters

NameDescription
H_cBRefCoercivity at reference temperature [A/m]
B_rRefRemanence at reference temperature [T]
T_refReference temperature [K]
alpha_BrTemperature coefficient of remanence at reference temperature [1/K]
T_opOperating temperature [K]

Modelica.Magnetic.FluxTubes.Material.HardMagnetic.NdFeB Modelica.Magnetic.FluxTubes.Material.HardMagnetic.NdFeB

NdFeB sintered; exemplary values

Information


Please refer to the description of the enclosing package HardMagnetic for a description of all permanent magnetic material characteristics of this package.

Extends from Modelica.Magnetic.FluxTubes.Material.HardMagnetic.BaseData (Record for permanent magnetic material data).

Parameters

NameDescription
H_cBRefCoercivity at reference temperature [A/m]
B_rRefRemanence at reference temperature [T]
T_refReference temperature [K]
alpha_BrTemperature coefficient of remanence at reference temperature [1/K]
T_opOperating temperature [K]

Modelica.Magnetic.FluxTubes.Material.HardMagnetic.Sm2Co17 Modelica.Magnetic.FluxTubes.Material.HardMagnetic.Sm2Co17

Sm2Co17 sintered, exemplary values

Information


Please refer to the description of the enclosing package HardMagnetic for a description of all permanent magnetic material characteristics of this package.

Extends from Modelica.Magnetic.FluxTubes.Material.HardMagnetic.BaseData (Record for permanent magnetic material data).

Parameters

NameDescription
H_cBRefCoercivity at reference temperature [A/m]
B_rRefRemanence at reference temperature [T]
T_refReference temperature [K]
alpha_BrTemperature coefficient of remanence at reference temperature [1/K]
T_opOperating temperature [K]

Modelica.Magnetic.FluxTubes.Material.HardMagnetic.SmCo5 Modelica.Magnetic.FluxTubes.Material.HardMagnetic.SmCo5

SmCo5 sintered, exemplary values

Information


Please refer to the description of the enclosing package HardMagnetic for a description of all permanent magnetic material characteristics of this package.

Extends from Modelica.Magnetic.FluxTubes.Material.HardMagnetic.BaseData (Record for permanent magnetic material data).

Parameters

NameDescription
H_cBRefCoercivity at reference temperature [A/m]
B_rRefRemanence at reference temperature [T]
T_refReference temperature [K]
alpha_BrTemperature coefficient of remanence at reference temperature [1/K]
T_opOperating temperature [K]

Modelica.Magnetic.FluxTubes.Material.HardMagnetic.PlasticNdFeB Modelica.Magnetic.FluxTubes.Material.HardMagnetic.PlasticNdFeB

Plastic-bonded NdFeB, exemplary values

Information


Please refer to the description of the enclosing package HardMagnetic for a description of all permanent magnetic material characteristics of this package.

Extends from Modelica.Magnetic.FluxTubes.Material.HardMagnetic.BaseData (Record for permanent magnetic material data).

Parameters

NameDescription
H_cBRefCoercivity at reference temperature [A/m]
B_rRefRemanence at reference temperature [T]
T_refReference temperature [K]
alpha_BrTemperature coefficient of remanence at reference temperature [1/K]
T_opOperating temperature [K]

Modelica.Magnetic.FluxTubes.Material.HardMagnetic.PlasticSmCo Modelica.Magnetic.FluxTubes.Material.HardMagnetic.PlasticSmCo

Plastic-bonded Sm-Co, exemplary values

Information


Please refer to the description of the enclosing package HardMagnetic for a description of all permanent magnetic material characteristics of this package.

Extends from Modelica.Magnetic.FluxTubes.Material.HardMagnetic.BaseData (Record for permanent magnetic material data).

Parameters

NameDescription
H_cBRefCoercivity at reference temperature [A/m]
B_rRefRemanence at reference temperature [T]
T_refReference temperature [K]
alpha_BrTemperature coefficient of remanence at reference temperature [1/K]
T_opOperating temperature [K]

Modelica.Magnetic.FluxTubes.Material.HardMagnetic.HardFerrite Modelica.Magnetic.FluxTubes.Material.HardMagnetic.HardFerrite

Hard ferrite sintered, exemplary values

Information


Please refer to the description of the enclosing package HardMagnetic for a description of all permanent magnetic material characteristics of this package.

Extends from Modelica.Magnetic.FluxTubes.Material.HardMagnetic.BaseData (Record for permanent magnetic material data).

Parameters

NameDescription
H_cBRefCoercivity at reference temperature [A/m]
B_rRefRemanence at reference temperature [T]
T_refReference temperature [K]
alpha_BrTemperature coefficient of remanence at reference temperature [1/K]
T_opOperating temperature [K]

Modelica.Magnetic.FluxTubes.Material.HardMagnetic.PlasticHardFerrite Modelica.Magnetic.FluxTubes.Material.HardMagnetic.PlasticHardFerrite

Plastic-bonded hard ferrite, exemplary values

Information


Please refer to the description of the enclosing package HardMagnetic for a description of all permanent magnetic material characteristics of this package.

Extends from Modelica.Magnetic.FluxTubes.Material.HardMagnetic.BaseData (Record for permanent magnetic material data).

Parameters

NameDescription
H_cBRefCoercivity at reference temperature [A/m]
B_rRefRemanence at reference temperature [T]
T_refReference temperature [K]
alpha_BrTemperature coefficient of remanence at reference temperature [1/K]
T_opOperating temperature [K]

Automatically generated Mon Sep 23 17:20:38 2013.