The lifespan of magnetic materials is an important consideration, especially for equipment and systems that are used for a long time or in special environments. There are many key factors that affect the lifespan of magnetic materials, among which the following are the most important:

1. Temperature
      Temperature is one of the important factors that directly affect the performance and lifespan of magnetic materials. High temperature environments may cause demagnetization, decrease in magnetic properties, or structural changes in magnetic materials, thereby shortening their lifespan. On the contrary, low-temperature environments may make certain magnetic materials fragile and have a negative impact on their performance.
2. Magnetic field strength
      The magnetic field strength also has a significant impact on the lifespan of magnetic materials. Under high magnetic field intensity, magnetic materials may undergo faster magnetization and demagnetization processes, leading to degradation. In addition, some magnetic materials may saturate after reaching a certain magnetic field strength, exceeding this threshold may lead to a decrease in performance.
3. Working frequency
      The working frequency refers to the frequency at which magnetic materials flip in a magnetic field. In high-frequency applications, magnetic materials may be affected by energy loss and hysteresis loss, leading to a shortened lifespan. Therefore, when selecting magnetic materials, it is necessary to consider their performance within a specific frequency range.
4. Selection of magnetic materials
      Different types of magnetic materials have different properties and characteristics, so the selection of magnetic materials for specific applications is crucial. Some magnetic materials may be more suitable for high-temperature environments, while others perform better at low temperatures. Choosing materials that are suitable for specific working conditions correctly is an important step in ensuring a long lifespan.
5. Environmental factors
      Environmental factors, such as humidity, chemicals, and oxidation, can also have a significant impact on the lifespan of magnetic materials. Some materials may be sensitive to humidity, prone to rusting or oxidation, thereby reducing their performance and lifespan.
6. Processing and usage conditions
      The processing and usage conditions of materials also have a direct impact on their lifespan. Incorrect processing methods, excessive stress, or improper usage conditions may lead to the deterioration of magnetic materials and slow down their lifespan.
In practical applications, considering these factors comprehensively, developing reasonable usage and maintenance strategies, as well as regular testing and maintenance, will help to maximize the lifespan of magnetic materials.