cathode breakdown

简明释义

阴极击穿

英英释义

例句

1.The failure analysis revealed that cathode breakdown 阴极击穿 was caused by excessive thermal stress.

故障分析显示，阴极击穿 cathode breakdown是由于过度的热应力引起的。

2.The researchers observed a significant increase in current density during the cathode breakdown 阴极击穿 phase of the experiment.

研究人员在实验的阴极击穿 cathode breakdown阶段观察到了电流密度的显著增加。

3.Preventing cathode breakdown 阴极击穿 is crucial for extending the lifespan of the battery.

防止阴极击穿 cathode breakdown对延长电池寿命至关重要。

4.Engineers are developing new materials to minimize cathode breakdown 阴极击穿 in high-performance batteries.

工程师们正在开发新材料，以尽量减少高性能电池中的阴极击穿 cathode breakdown。

5.The team conducted simulations to predict when cathode breakdown 阴极击穿 might occur under different conditions.

团队进行了模拟，以预测在不同条件下何时会发生阴极击穿 cathode breakdown。

作文

The phenomenon known as cathode breakdown occurs in various electronic devices, particularly in vacuum tubes and semiconductor components. To understand cathode breakdown, we need to explore the fundamental principles of electron emission and the behavior of materials under high voltage conditions. In simple terms, cathode breakdown refers to the failure of the cathode to maintain its ability to emit electrons effectively, leading to a sudden surge in current that can damage the device. This breakdown can result from several factors, including excessive voltage, material degradation, and environmental conditions.In electronic circuits, the cathode serves as the source of electrons, which are essential for current flow. When a voltage is applied, electrons are emitted from the cathode and move towards the anode. However, if the voltage exceeds a certain threshold, the cathode can experience a cathode breakdown. This situation typically arises when the electric field intensity becomes too high, causing the electrons to collide with the atoms in the cathode material more violently. As a result, the cathode may lose its structural integrity and fail to function correctly.One common scenario where cathode breakdown can occur is in cathode ray tubes (CRTs), which were widely used in older television sets and computer monitors. In these devices, the cathode is heated to emit electrons, which are then directed towards a phosphorescent screen. If the voltage applied to the cathode becomes too high, it can lead to cathode breakdown, resulting in flickering images or complete failure of the display.Another instance of cathode breakdown can be observed in modern semiconductor devices, such as diodes and transistors. These components rely on precise control of electron flow to function correctly. If the cathode experiences a breakdown due to excessive voltage, it can lead to irreversible damage, rendering the component useless. Therefore, understanding the limits of voltage and the conditions that can lead to cathode breakdown is crucial for engineers and designers working with electronic devices.Preventive measures can be taken to mitigate the risk of cathode breakdown. For instance, engineers often incorporate protective circuits that limit the voltage applied to the cathode. Additionally, selecting appropriate materials with high resistance to breakdown can enhance the longevity and reliability of electronic components. Testing and quality control during manufacturing processes also play vital roles in ensuring that devices can withstand the stresses of operation without experiencing cathode breakdown.In conclusion, cathode breakdown is a critical concept in electronics that refers to the failure of the cathode to emit electrons effectively due to excessive voltage or other detrimental conditions. Understanding this phenomenon is essential for the design and maintenance of electronic devices, ensuring their functionality and durability. As technology continues to advance, further research into preventing cathode breakdown will be necessary to enhance the performance of future electronic systems.

所谓的阴极击穿现象发生在各种电子设备中，特别是在真空管和半导体元件中。要理解阴极击穿，我们需要探讨电子发射的基本原理以及材料在高电压条件下的行为。简单来说，阴极击穿是指阴极无法有效维持其电子发射能力，导致电流突然激增，从而可能损坏设备。这种击穿可能由多种因素引起，包括过高的电压、材料退化和环境条件。在电子电路中，阴极作为电子的源头，而电子对于电流的流动至关重要。当施加电压时，电子从阴极发射并朝向阳极移动。然而，如果电压超过某个阈值，阴极可能会经历阴极击穿。这种情况通常发生在电场强度过高时，导致电子与阴极材料中的原子发生更猛烈的碰撞。因此，阴极可能失去其结构完整性，无法正常工作。一个常见的阴极击穿场景出现在阴极射线管（CRT）中，这种管子曾广泛用于旧式电视机和计算机显示器。在这些设备中，阴极被加热以发射电子，然后电子被引导到荧光屏上。如果施加到阴极的电压过高，就可能导致阴极击穿，从而导致图像闪烁或显示器完全失效。另一个观察到阴极击穿的实例可以在现代半导体设备中看到，例如二极管和晶体管。这些组件依赖于精确控制电子流动才能正常工作。如果阴极由于过高的电压而发生击穿，可能会导致不可逆转的损坏，使组件失去功能。因此，了解电压的极限以及可能导致阴极击穿的条件，对于从事电子设备工作的工程师和设计师至关重要。可以采取预防措施来减轻阴极击穿的风险。例如，工程师通常会结合保护电路来限制施加到阴极的电压。此外，选择具有高抗击穿能力的合适材料，可以增强电子组件的耐用性和可靠性。制造过程中的测试和质量控制也在确保设备能够承受操作压力而不发生阴极击穿方面发挥了重要作用。总之，阴极击穿是电子学中的一个关键概念，指的是由于过高的电压或其他不利条件，阴极无法有效发射电子。理解这一现象对于电子设备的设计和维护至关重要，确保其功能性和耐用性。随着技术的不断进步，进一步研究防止阴极击穿将是提升未来电子系统性能的必要工作。