Analysis on Magnetic Properties of Soft Magnetic Alloys
Introduction
Soft magnetic alloy is a kind of alloy made by introducing aluminum, iron, cobalt, nickel, copper or other elements into copper. As an important functional material, its magnetic properties directly affect the performance of electronic equipment. This paper mainly focuses on the analysis of magnetic properties of soft magnetic alloys.
Properties of Soft Magnetic Alloys
Most of the soft magnetic alloys have been developed for the purpose of making components with high electrical conductivity, low resistivity and low hysteresis loss. At present, some well-known soft magnetic alloys include permalloy (a nickel-iron alloy commonly used for transformers and inductors), iron-cobalt alloys (used for motor cores, magnetically shielded components), iron-silicon alloys (used for transformers), and iron-manganese alloys (used for separators and varistors).
In soft magnetic alloys, magnetic properties mainly refer to the permeability (μ), which is a measure of the ability of a material to store magnetic energy, and the coercive force (Hc), which reflects the strength of magnetic field needed to demagnetize the material. In general, higher permeability indicates stronger magnetization and higher coercivity indicates stronger reverse magnetization of the material.
The permeability and coercivity of soft magnetic alloys are closely related to the initial structure of alloys and may also be affected by various factors such as grain size, impurity level, temperature and surface condition. Generally speaking, the grain size of soft magnetic alloys is smaller, the impurity degree is lower, and the temperature is lower, then the permeability and coercive force will be higher.
Conclusion
In conclusion, soft magnetic alloys are important functional materials with a wide range of applications.
The magnetic properties of such alloys are closely related to their initial structure, as well as various external factors such as grain size, impurity level, temperature and surface condition, which can affect their permeability and coercivity. Understanding and mastering the magnetic properties of soft magnetic alloys is an important factor in the development and improvement of related applications.
