Permanent magnet design to enable higher magnetic flux density

1. A permanent magnet comprising:

a first magnetic material; and

a second magnetic material different from the first magnetic material, the second magnetic material including a north surface second magnetic material and a south surface second magnetic material, the north surface second magnetic material assembled on a north pole surface of the first magnetic material and the south surface second magnetic material assembled on a south pole surface of the first magnetic material;

wherein a polar axis of the first magnetic material is parallel with a polar axis of the second magnetic material,

wherein at least one of: a saturation magnetization (M S ), magnetic anisotropy (K u ), coefficient of temperature (CT) of magnetization, CT of Coercivity, or Curie temperature (T C ) is higher for the second magnetic material than the first magnetic material, and

wherein a volume of the second magnetic material is less than or equal to a volume of the first magnetic material.

2. The permanent magnet of claim 1 , wherein the first magnetic material is a rectangular prism or cylindrical and the second magnetic materials are assembled on opposite ends of the rectangular prism or cylindrical first magnetic material perpendicular to a polar axis of the first magnetic material.

3. The permanent magnet of claim 2 , wherein a length of each of the second magnetic materials is 1/20 the length of the permanent magnet.

4. The permanent magnet of claim 3 , wherein a width of each of the second magnetic materials is equal to a width of the first magnetic material and wherein a height of each of the second magnetic materials is equal to a height of the first magnetic material.

5. The permanent magnet of claim 1 , wherein:

the first magnetic material is at least one of: alnico, ferrite, a rare earth-transition metal-based permanent magnetic material, a manganese-based permanent magnetic material, a transition metal-platinum-based magnetic material, or Iron-Nitride (Fe—N); and

the second magnetic material is at least one other of: alnico, ferrite, the rare earth-transition metal-based permanent magnetic material, the manganese-based permanent magnetic material, the transition metal-platinum-based magnetic material, or Fe—N.

6. The permanent magnet of claim 1 , wherein the permanent magnet has a higher magnetic flux density than a magnetic flux density of the first magnetic material.

7. The permanent magnet of claim 1 , wherein at least one of: the saturation magnetization (M S ), magnetic anisotropy (K u ), coefficient of temperature (CT) of magnetization, CT of Coercivity, Curie temperature (T C ), remanent magnetization (M r ), or Coercivity (H C ) is optimized for the second magnetic material based on an application of the permanent magnet.

8. The permanent magnet of claim 1 , wherein the second magnetic material is attached to the first magnetic material via at least one of: injection molding, compression molding, adhesion, high pressure compression, or high pressure annealing.

9. The permanent magnet of claim 1 , wherein an interaction between the first and second magnetic material is exchange-coupled interaction.

10. The permanent magnet of claim 1 , wherein the second magnetic material is coated, plated, or printed onto the first magnetic material.

11. An electromagnetic induction device comprising:

a rotor including an electromagnet; and

a stator surrounding the rotor and including a permanent magnet comprising:

a first magnetic material; and

a second magnetic material, the second magnetic material including a north surface second magnetic material and a south surface second magnetic material, the north surface second magnetic material assembled on a north pole surface of the first magnetic material and the south surface second magnetic material assembled on a south pole surface of the first magnetic material;

wherein a polar axis of the first magnetic material is parallel with a polar axis of the second magnetic material, and

wherein at least one of: a saturation magnetization (M S ), magnetic anisotropy (K u ), coefficient of temperature (CT) of magnetization, CT of Coercivity, or Curie temperature (T C ) is higher for the second magnetic material than the first magnetic material,

wherein a magnetic field of the stator interacts with the rotor causing the rotor to generate motion or electric current.

12. The electromagnetic induction device of claim 11 , wherein the first magnetic material in the permanent magnet is a rectangular prism or cylindrical and the second magnetic materials are assembled on opposite ends of the rectangular prism or cylindrical first magnetic material perpendicular to a polar axis of the first magnetic material.

13. The electromagnetic induction device of claim 11 , wherein a length of each of the second magnetic materials is 1/20 the length of the permanent magnet.

14. The electromagnetic induction device of claim 11 , wherein:

the first magnetic material is at least one of: alnico, ferrite, a rare earth-transition metal- based permanent magnetic material, a manganese-based permanent magnetic material, a transition metal-platinum-based magnetic material, or Iron-Nitride (Fe—N); and

the second magnetic material is at least one other of: alnico, ferrite, the rare earth- transition metal-based permanent magnetic material, the manganese-based permanent magnetic material, the transition metal-platinum-based magnetic material, or Fe—N.

15. The electromagnetic induction device of claim 11 , wherein the stator has a higher magnetic flux density than a magnetic flux density of the first magnetic material, increasing efficiency of the electromagnetic induction device.

16. The electromagnetic induction device of claim 11 , wherein the second magnetic material is mechanically attached to the first magnetic material.