magnetic retentivity

简明释义

顽磁性

英英释义

例句

1.The magnetic retentivity 磁滞效应 of the material allows it to retain its magnetism after the external magnetic field is removed.

该材料的magnetic retentivity 磁滞效应使其在外部磁场移除后仍能保持其磁性。

2.In electric motors, high magnetic retentivity 磁滞效应 is essential for efficient operation.

在电动机中，高magnetic retentivity 磁滞效应对高效运行至关重要。

3.The study focused on improving the magnetic retentivity 磁滞效应 of hard disk drives to enhance data storage capabilities.

该研究集中于提高硬盘驱动器的magnetic retentivity 磁滞效应以增强数据存储能力。

4.Materials with low magnetic retentivity 磁滞效应 are often used in applications where quick demagnetization is required.

低magnetic retentivity 磁滞效应的材料通常用于需要快速去磁的应用中。

5.The magnetic retentivity 磁滞效应 of the alloy was tested under various temperatures to determine its stability.

该合金的magnetic retentivity 磁滞效应在不同温度下进行了测试，以确定其稳定性。

作文

Magnetic materials have always fascinated scientists and engineers alike due to their unique properties. One of the most important characteristics of these materials is their ability to retain magnetism after the external magnetic field is removed. This phenomenon is known as magnetic retentivity, which refers to the capacity of a material to hold onto its magnetic properties even in the absence of an external magnetic influence. Understanding magnetic retentivity is crucial for various applications, including data storage, electric motors, and magnetic sensors.To delve deeper into the concept of magnetic retentivity, it is essential to first understand how magnetism works. When a material is exposed to a magnetic field, the magnetic domains within the material align themselves in the direction of the field. This alignment results in a net magnetic moment, allowing the material to exhibit magnetic behavior. Once the external magnetic field is removed, some materials will maintain the alignment of their magnetic domains, while others will not. The degree to which a material retains its magnetism is what we refer to as magnetic retentivity.Materials with high magnetic retentivity, such as certain types of steel and ferrites, are often used in permanent magnets. These materials can store significant amounts of magnetic energy and are essential in many everyday applications, from refrigerator magnets to hard drives. In contrast, materials with low magnetic retentivity tend to lose their magnetism quickly once the external field is removed, making them suitable for temporary magnets or applications where a quick response to changing magnetic fields is needed.The concept of magnetic retentivity is also closely related to the idea of coercivity, which measures a material's resistance to becoming demagnetized. High coercivity materials, which also exhibit high magnetic retentivity, are particularly valuable in applications where stability and longevity are critical. For example, in the manufacturing of electric motors, materials with both high magnetic retentivity and high coercivity are preferred to ensure efficient and reliable performance over time.In addition to its practical applications, magnetic retentivity has significant implications in scientific research. Understanding how different materials respond to magnetic fields can lead to advancements in technology, such as the development of new magnetic materials with tailored properties for specific applications. Researchers are continually exploring the relationships between composition, structure, and magnetic retentivity to create innovative solutions that address modern challenges.In conclusion, magnetic retentivity is a fundamental property of magnetic materials that plays a vital role in numerous technological applications. Its significance extends beyond mere magnetism; it influences the design and functionality of devices that we use every day. By studying and harnessing magnetic retentivity, scientists and engineers can continue to push the boundaries of technology, leading to enhanced performance and new functionalities in a wide range of fields. As our understanding of magnetic properties deepens, we can expect to see even more exciting developments in the future, driven by the principles of magnetic retentivity and its applications.

磁性材料一直以来都吸引着科学家和工程师的关注，因为它们具有独特的特性。其中一个最重要的特性就是这些材料在外部磁场移除后仍能保持磁性。这种现象被称为磁滞，指的是材料在没有外部磁场影响的情况下保持其磁性的能力。理解磁滞对于各种应用至关重要，包括数据存储、电动机和磁传感器。要深入了解磁滞的概念，首先需要理解磁性是如何工作的。当材料暴露于磁场时，材料内部的磁畴会朝着磁场的方向对齐。这种对齐导致了净磁矩，使材料表现出磁性。一旦外部磁场被移除，一些材料将保持其磁畴的对齐，而其他材料则不会。材料保持其磁性的程度就是我们所称的磁滞。具有高磁滞的材料，例如某些类型的钢和铁氧体，通常用于永久磁铁。这些材料可以存储大量的磁能，并且在许多日常应用中至关重要，从冰箱磁铁到硬盘驱动器。相反，具有低磁滞的材料在外部场移除后往往会迅速失去其磁性，使其适合于临时磁铁或需要快速响应变化磁场的应用。磁滞的概念与矫顽力密切相关，矫顽力测量材料抵抗去磁化的能力。高矫顽力材料也展现出高磁滞，在稳定性和耐久性至关重要的应用中尤其有价值。例如，在电动机的制造中，优选具有高磁滞和高矫顽力的材料，以确保长时间内的高效和可靠性能。除了实际应用外，磁滞在科学研究中也具有重要意义。理解不同材料如何响应磁场可以推动技术的进步，例如开发具有特定应用所需的定制特性的新的磁性材料。研究人员不断探索成分、结构与磁滞之间的关系，以创造创新的解决方案，解决现代挑战。总之，磁滞是磁性材料的基本特性，在众多技术应用中发挥着至关重要的作用。它的重要性超越了单纯的磁性；它影响着我们每天使用的设备的设计和功能。通过研究和利用磁滞，科学家和工程师可以继续推动技术的边界，从而在各个领域实现更高的性能和新功能。随着我们对磁性特性的理解加深，我们可以期待在未来看到更多令人兴奋的发展，这些发展将由磁滞的原则及其应用推动。