retentive magnetism

简明释义

顽磁性

英英释义

例句

1.When designing magnetic storage devices, retentive magnetism 保持磁性 is a crucial property to consider for data retention.

在设计磁存储设备时，保持磁性 保持磁性是考虑数据保留的重要属性。

2.The engineer chose a core with excellent retentive magnetism 保持磁性 for the transformer to minimize energy loss.

工程师为变压器选择了具有优良保持磁性 保持磁性的核心，以最小化能量损失。

3.Many modern electronics rely on materials with high retentive magnetism 保持磁性 to ensure they function properly after being powered off.

许多现代电子设备依赖于具有高保持磁性 保持磁性的材料，以确保在断电后仍能正常工作。

4.In the study of geology, retentive magnetism 保持磁性 helps researchers understand the historical magnetic field changes of the Earth.

在地质学研究中，保持磁性 保持磁性帮助研究人员了解地球历史上磁场的变化。

5.The scientist explained that the material exhibited retentive magnetism 保持磁性, allowing it to retain its magnetic properties even after the external magnetic field was removed.

科学家解释说，这种材料表现出保持磁性 保持磁性，即使在外部磁场移除后，它仍能保留其磁性特性。

作文

In the realm of physics, the concept of magnetism plays a crucial role in understanding how various materials interact with magnetic fields. One fascinating aspect of this phenomenon is what we refer to as retentive magnetism. This term describes the ability of certain materials, particularly ferromagnetic substances, to retain their magnetization after an external magnetic field is removed. The significance of retentive magnetism extends beyond mere scientific curiosity; it has practical applications in everyday life and technology that are essential for modern society.To understand retentive magnetism, we first need to explore the basics of magnetism itself. Magnetism arises from the movement of electric charges, primarily electrons, within atoms. In ferromagnetic materials like iron, cobalt, and nickel, the atomic structure allows for the alignment of magnetic moments, which leads to the material becoming magnetized when exposed to a magnetic field. When the external field is removed, some of these materials can maintain a portion of their magnetization due to retentive magnetism.The phenomenon of retentive magnetism can be attributed to the interactions between the magnetic domains within a ferromagnetic material. These domains are small regions where the magnetic moments of atoms are aligned in the same direction. When a magnetic field is applied, these domains grow and align with the field, resulting in an overall magnetization of the material. Once the magnetic field is removed, some of the domains remain aligned, which is what gives rise to the retained magnetization.The applications of retentive magnetism are numerous and varied. For instance, it is a fundamental principle behind the operation of permanent magnets, which are used in countless devices ranging from refrigerator magnets to electric motors. In industries, retentive magnetism is utilized in magnetic storage media, such as hard drives and credit cards, where data is stored in the form of magnetized regions on a surface. This ability to retain magnetization allows for reliable data storage and retrieval, which is vital in our digital age.Moreover, retentive magnetism also plays a role in medical technologies. Magnetic resonance imaging (MRI) machines, for example, rely on the principles of magnetism to create detailed images of the human body. The technology takes advantage of the magnetic properties of certain atoms, particularly hydrogen, and their interactions with magnetic fields. The retention of magnetization in the body’s tissues helps to produce the high-resolution images necessary for accurate diagnosis.Despite its many benefits, retentive magnetism can also present challenges. For example, in electronic devices, unwanted magnetization can lead to interference and malfunctions. Engineers must carefully consider the materials used in their designs to mitigate the effects of retentive magnetism that could degrade performance.In conclusion, retentive magnetism is a significant and intriguing aspect of magnetism that has far-reaching implications in both science and technology. Its ability to allow materials to retain magnetization after the removal of an external magnetic field not only enhances our understanding of magnetic phenomena but also enables a wide range of applications that are integral to modern life. As we continue to explore the depths of magnetism, the importance of retentive magnetism will undoubtedly remain a focal point in both research and practical applications, shaping the future of technology and innovation.

在物理学领域，磁性这一概念在理解各种材料如何与磁场相互作用方面发挥着至关重要的作用。这个现象中一个引人入胜的方面就是我们所称之为保持磁性的概念。这个术语描述了某些材料，特别是铁磁性物质在外部磁场移除后保持其磁化能力的特性。保持磁性的意义不仅仅是科学好奇心，它在日常生活和技术中的实际应用对现代社会至关重要。要理解保持磁性，我们首先需要探索磁性本身的基础知识。磁性源于原子内电荷的运动，主要是电子。在铁、钴和镍等铁磁性材料中，原子结构允许磁矩的排列，这导致材料在暴露于磁场时被磁化。当外部磁场被移除时，一些这些材料可以由于保持磁性而维持其磁化的一部分。保持磁性的现象可以归因于铁磁材料内部磁畴之间的相互作用。这些磁畴是小区域，其中原子的磁矩朝同一方向排列。当施加磁场时，这些磁畴会生长并与磁场对齐，从而导致材料整体磁化。一旦磁场被移除，部分磁畴仍然保持对齐，这就是造成保持磁化的原因。保持磁性的应用是多种多样的。例如，它是永久磁铁工作原理的基本原则，永久磁铁用于从冰箱磁铁到电动机的无数设备。在工业中，保持磁性被用于磁存储介质，如硬盘和信用卡，数据以磁化区域的形式存储在表面上。这种保持磁化的能力使得可靠的数据存储和检索成为可能，这在我们的数字时代至关重要。此外，保持磁性还在医疗技术中发挥作用。例如，磁共振成像（MRI）机器依赖于磁性的原理来创建人体的详细图像。该技术利用某些原子的磁性特性，特别是氢，以及它们与磁场的相互作用。体内组织中磁化的保持有助于生成高分辨率的图像，这对于准确诊断是必要的。尽管有许多好处，但保持磁性也可能带来挑战。例如，在电子设备中，不必要的磁化可能导致干扰和故障。工程师必须仔细考虑他们设计中使用的材料，以减轻可能影响性能的保持磁性的影响。总之，保持磁性是磁性的重要而引人入胜的方面，它在科学和技术中具有深远的影响。它使材料在外部磁场移除后保持磁化的能力，不仅增强了我们对磁性现象的理解，还使一系列对现代生活至关重要的应用成为可能。随着我们继续探索磁性的深度，保持磁性的重要性无疑将继续成为研究和实际应用的重点，塑造技术和创新的未来。