curie point
简明释义
居里点
英英释义
The Curie point, or Curie temperature, is the temperature at which certain materials lose their permanent magnetic properties and become paramagnetic. | 居里点或居里温度是某些材料失去其永久磁性并变为顺磁性的温度。 |
例句
1.Understanding the curie point is crucial for designing efficient magnetic storage devices.
理解居里点对于设计高效的磁存储设备至关重要。
2.The curie point of this specific ceramic is around 600 degrees Celsius.
这种特定陶瓷的居里点大约在600摄氏度。
3.Above the curie point, ferromagnetic materials lose their permanent magnetism.
在居里点以上,铁磁材料失去其永久磁性。
4.The magnetic properties of the material change significantly when it reaches its curie point.
当材料达到其居里点时,磁性特性会发生显著变化。
5.Scientists are studying how different alloys behave at their respective curie points.
科学家们正在研究不同合金在各自的居里点下的行为。
作文
The concept of the curie point is crucial in the field of magnetism and materials science. It refers to the temperature at which a ferromagnetic material loses its permanent magnetic properties and becomes paramagnetic. This phenomenon occurs because, at temperatures above the curie point, the thermal energy overcomes the magnetic energy that aligns the magnetic moments of the atoms within the material. Understanding the curie point is essential for various applications, including the design of magnetic storage devices, transformers, and other electrical components.In practical terms, when a ferromagnetic material such as iron is heated to its curie point, it can no longer maintain its magnetic orientation. For instance, the curie point of iron is approximately 770 degrees Celsius (1,420 degrees Fahrenheit). Above this temperature, the iron will not exhibit any significant magnetic properties unless it is cooled below this threshold.The significance of the curie point extends beyond just theoretical understanding; it has real-world implications. Engineers and scientists must consider the curie point when developing materials for high-temperature applications. For example, in the aerospace industry, materials exposed to extreme heat during flight must retain their magnetic properties to function effectively. Failure to account for the curie point could lead to catastrophic failures in systems that rely on magnetic fields for operation.Moreover, the curie point plays a vital role in the study of phase transitions in materials. When a substance experiences a change in temperature, it can transition between different phases, such as solid, liquid, or gas. The curie point marks a critical transition in the magnetic phase of materials, making it a focal point in research related to thermodynamics and material behavior under varying conditions.Additionally, the curie point is not a fixed value; it can vary depending on the composition of the material and external factors such as pressure. This variability allows researchers to manipulate materials to achieve desired magnetic properties by altering their curie point. For instance, alloying elements with specific characteristics can raise or lower the curie point, enabling the development of custom materials tailored for specific applications.In conclusion, the curie point is a fundamental concept in understanding the behavior of ferromagnetic materials under thermal influence. Its implications reach far into practical applications, influencing the design and functionality of various technologies. By comprehensively studying the curie point, scientists and engineers can innovate and improve existing technologies, paving the way for advancements in multiple industries, including electronics, automotive, and aerospace. As we continue to explore the properties of materials, the curie point will remain a key focus, guiding future research and development efforts in material sciences.
‘居里点’这一概念在磁学和材料科学领域至关重要。它指的是一个铁磁材料失去其永久磁性并变为顺磁性的温度。这一现象发生的原因是在超过‘居里点’的温度下,热能克服了材料内原子磁矩对齐的磁能。理解‘居里点’对于各种应用至关重要,包括磁存储设备、变压器和其他电气组件的设计。在实际操作中,当像铁这样的铁磁材料被加热到其‘居里点’时,它将无法维持其磁定向。例如,铁的‘居里点’大约是770摄氏度(1420华氏度)。在这个温度之上,铁不会表现出任何显著的磁性,除非它被冷却到这个阈值以下。‘居里点’的重要性超越了理论理解;它具有实际的影响。工程师和科学家在开发高温应用材料时必须考虑‘居里点’。例如,在航空航天工业中,暴露于飞行中的极端热量的材料必须保持其磁性,以有效地发挥作用。如果未能考虑‘居里点’,可能会导致依赖磁场操作的系统发生灾难性故障。此外,‘居里点’在材料相变研究中也发挥着重要作用。当物质经历温度变化时,它可以在固体、液体或气体等不同相之间转变。‘居里点’标志着材料磁相的关键转变,使其成为热力学和材料在不同条件下行为研究的焦点。此外,‘居里点’并不是一个固定值;它可以根据材料的组成和外部因素(如压力)而变化。这种可变性使研究人员能够通过改变‘居里点’来操纵材料,以实现所需的磁性。例如,合金元素具有特定特征可以提高或降低‘居里点’,从而使得开发定制材料成为可能,以满足特定应用的需求。总之,‘居里点’是理解铁磁材料在热影响下行为的基本概念。它的影响深远,影响着各种技术的设计和功能。通过全面研究‘居里点’,科学家和工程师能够创新和改进现有技术,为电子、汽车和航空航天等多个行业的进步铺平道路。随着我们继续探索材料的特性,‘居里点’将始终是一个关键焦点,引导未来材料科学的研究和发展工作。