dielectric fatigue

简明释义

1. 电介质疲劳; 2. 电介质老化;

英英释义

例句

1.Testing for dielectric fatigue is essential in the aerospace industry to prevent failures in critical systems, where 介电疲劳 could lead to catastrophic outcomes.

在航空航天行业，测试介电疲劳至关重要，以防止关键系统中的故障，因为介电疲劳可能导致灾难性的后果。

2.Researchers are studying new polymers to reduce dielectric fatigue in high-voltage applications, aiming to improve resistance to 介电疲劳.

研究人员正在研究新型聚合物，以减少高电压应用中的介电疲劳，旨在提高对介电疲劳的抵抗力。

3.Materials that exhibit dielectric fatigue often require regular maintenance and monitoring to avoid 介电疲劳 related failures.

表现出介电疲劳的材料通常需要定期维护和监测，以避免与介电疲劳相关的故障。

4.Engineers must consider dielectric fatigue when designing capacitors to ensure reliability, as 介电疲劳 can significantly shorten their lifespan.

工程师在设计电容器时必须考虑介电疲劳，以确保可靠性，因为介电疲劳会显著缩短其使用寿命。

5.The repeated application of high voltage can lead to dielectric fatigue, which is 介电疲劳 in insulating materials.

高电压的反复施加可能导致介电疲劳，这在绝缘材料中是介电疲劳。

作文

Understanding the concept of dielectric fatigue is crucial in the fields of electrical engineering and materials science. This phenomenon occurs when a dielectric material, which is an insulating substance that can be polarized by an electric field, experiences a decline in its insulating properties over time due to repeated electrical stress. As technology advances and the demand for more efficient electronic components increases, the implications of dielectric fatigue become increasingly significant.Dielectric materials are essential in various applications, including capacitors, insulators, and other electronic devices. These materials are designed to withstand high voltages without conducting electricity. However, under prolonged exposure to electric fields, they can undergo physical and chemical changes that lead to dielectric fatigue. This degradation can manifest as increased leakage currents, reduced breakdown voltage, and ultimately, failure of the component.The mechanisms behind dielectric fatigue are complex and multifaceted. One contributing factor is the generation of defects within the material structure. When subjected to electric fields, the movement of charge carriers can create localized heating and mechanical stress, leading to microstructural changes. Over time, these changes accumulate, resulting in a decrease in the material's ability to insulate. Additionally, environmental factors such as temperature, humidity, and the presence of contaminants can exacerbate the effects of dielectric fatigue.To mitigate the risks associated with dielectric fatigue, researchers and engineers are actively exploring new materials and designs. Innovations in polymer-based dielectrics, for instance, have shown promise in enhancing durability and performance. By understanding the underlying mechanisms of dielectric fatigue, engineers can develop better testing methods to predict material lifespan and improve the reliability of electronic components.Moreover, regular maintenance and monitoring of electrical systems can help identify signs of dielectric fatigue before they lead to catastrophic failures. Implementing preventive measures, such as voltage regulation and insulation testing, is vital for ensuring the longevity of electrical equipment.In conclusion, dielectric fatigue is a critical aspect of modern electrical engineering that cannot be overlooked. As electronic devices continue to evolve and operate under more demanding conditions, understanding and addressing dielectric fatigue will be essential for developing safer, more reliable technologies. The ongoing research into materials and their behaviors under electrical stress will play a pivotal role in shaping the future of electronics and ensuring the efficient operation of electrical systems worldwide.

理解介质疲劳这一概念对于电气工程和材料科学领域至关重要。这种现象发生在介质材料，即可以通过电场极化的绝缘物质，因反复的电气压力而导致其绝缘性能随时间下降。随着技术的进步和对更高效电子元件的需求增加，介质疲劳的影响变得越来越显著。介质材料在各种应用中都是必不可少的，包括电容器、绝缘体和其他电子设备。这些材料旨在承受高电压而不导电。然而，在长时间暴露于电场下，它们可能会经历物理和化学变化，导致介质疲劳。这种降解可能表现为漏电流增加、击穿电压降低，最终导致组件失效。导致介质疲劳的机制复杂且多方面。一个促成因素是材料结构内部缺陷的产生。当受到电场的作用时，电荷载体的运动可能会产生局部加热和机械应力，导致微观结构的变化。随着时间的推移，这些变化累积，导致材料的绝缘能力下降。此外，温度、湿度和污染物的存在等环境因素也可能加剧介质疲劳的影响。为了减轻与介质疲劳相关的风险，研究人员和工程师正在积极探索新材料和设计。例如，基于聚合物的介质在增强耐用性和性能方面显示出良好的前景。通过理解介质疲劳的基本机制，工程师可以开发更好的测试方法，以预测材料的使用寿命并提高电子组件的可靠性。此外，定期维护和监测电气系统可以帮助识别介质疲劳的迹象，从而避免灾难性故障的发生。实施预防措施，如电压调节和绝缘测试，对于确保电气设备的长寿命至关重要。总之，介质疲劳是现代电气工程中的一个关键方面，不容忽视。随着电子设备不断发展并在更苛刻的条件下运行，理解和解决介质疲劳将对开发更安全、更可靠的技术至关重要。对材料及其在电气压力下行为的持续研究将在塑造电子技术的未来和确保全球电气系统的高效运行中发挥关键作用。