Hard magnetic materials are those which have high coercivity, high retentivity and low loss in magnetisation due to mechanical treatment and no effect of temperature.
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In case of polycrystalline solids, the various crystals in a polycrystals are randomly oriented, so that properties are same in all directions. However if specific
Magnetic anisotropy is that property due to which ferromagnets tend to magnetize along certain crystallographic axes, called directions of easy magnetization. Example: In certain single
Magnetostriction has following applications: this effect is used in high frequency oscillators and generators of super sound. For under water projectors and sound detectors Reference:
Magnetostriction is a reversible effect because change in magnetsation can be produced by applying stress on the material. This effect is called Villari effect. Reference:
When a ferromagnetic material is magnetised, its length either expands or contracts in the direction of the magnetisation. This effect is called magnetostriction or Joule
Dear friends, As you are preparing for the placement in a reputed company like HCL then Let us discuss overview of HCL infosystems as it
Dear friends, As you are preparing for the placement in a reputed company like HCL then Let us discuss overview of HCL as it may
As the temperature of the ferromagnetic material is raised, the thermal energy of the atoms increases. At very high temperature, the thermal energy is sufficient
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