orientation polarization

简明释义

定向极化

英英释义

例句

1.In ferroelectric materials, orientation polarization 取向极化 plays a crucial role in their electrical properties.

在铁电材料中，orientation polarization 取向极化 对其电气特性起着至关重要的作用。

2.In dielectric materials, orientation polarization 取向极化 occurs when dipoles align in the presence of an electric field.

在电介质材料中，orientation polarization 取向极化 是指偶极子在电场存在下对齐的现象。

3.The concept of orientation polarization 取向极化 is essential for understanding how insulators behave under electric fields.

理解绝缘体在电场下的行为时，orientation polarization 取向极化 的概念至关重要。

4.Researchers are studying how temperature affects orientation polarization 取向极化 in various materials.

研究人员正在研究温度如何影响各种材料中的orientation polarization 取向极化。

5.The efficiency of capacitors can be improved by enhancing orientation polarization 取向极化 within the dielectric.

通过增强电介质中的orientation polarization 取向极化，可以提高电容器的效率。

作文

In the realm of materials science and physics, the concept of orientation polarization plays a crucial role in understanding the behavior of dielectric materials. Dielectrics are insulators that can be polarized by an electric field, leading to various applications in capacitors, sensors, and even in the development of advanced electronic devices. To fully grasp the significance of orientation polarization, it is essential to explore its definition, mechanisms, and practical implications in technology.Orientation polarization refers to the alignment of dipole moments within a material when subjected to an external electric field. In simpler terms, it describes how the molecules in a dielectric material can reorient themselves in response to an electric field, resulting in a net polarization effect. This phenomenon occurs primarily in polar molecules, which possess a permanent dipole moment due to the uneven distribution of electrons within the molecule. When an electric field is applied, these dipoles tend to align with the field direction, enhancing the material's overall polarization.The mechanism behind orientation polarization can be understood by considering the molecular structure of polar substances. For instance, water (H2O) is a classic example of a polar molecule. The oxygen atom is more electronegative than the hydrogen atoms, creating a partial negative charge near the oxygen and a partial positive charge near the hydrogens. When an electric field is applied, the water molecules rotate to align with the field, leading to increased polarization. This process is temperature-dependent; at higher temperatures, the thermal motion of molecules can hinder their ability to align, thus affecting the degree of polarization.The significance of orientation polarization extends beyond theoretical understanding; it has profound implications in various technological applications. In capacitors, for example, the ability of dielectric materials to undergo orientation polarization significantly influences their capacitance. Materials with high dielectric constants, which indicate a strong ability to polarize, are preferred for capacitor design as they can store more electrical energy.Moreover, orientation polarization is also vital in the field of electronics, particularly in the development of ferroelectric materials. These materials exhibit spontaneous polarization, meaning they can maintain a polarized state even in the absence of an external electric field. This property is harnessed in non-volatile memory devices, such as ferroelectric random-access memory (FeRAM), which offers advantages over traditional memory technologies in terms of speed and energy efficiency.Understanding orientation polarization also aids in the design of sensors and actuators. For instance, piezoelectric materials, which generate an electric charge in response to mechanical stress, rely on the principles of polarization. By manipulating the orientation of dipoles within these materials, engineers can create devices that respond effectively to external stimuli, making them invaluable in various applications ranging from medical devices to industrial automation.In conclusion, orientation polarization is a fundamental concept that bridges the gap between molecular behavior and practical applications in technology. By comprehending how dipoles align in response to electric fields, scientists and engineers can innovate and improve the performance of various electronic and electro-mechanical devices. As we continue to advance in material science, the understanding of orientation polarization will undoubtedly play a pivotal role in shaping the future of technology, paving the way for more efficient and sustainable solutions in our ever-evolving world.

在材料科学和物理学领域，取向极化的概念在理解介电材料的行为中发挥着至关重要的作用。介电材料是可以被电场极化的绝缘体，导致在电容器、传感器甚至先进电子设备的开发中广泛应用。要全面理解取向极化的重要性，有必要探讨其定义、机制以及在技术中的实际意义。取向极化指的是当材料受到外部电场作用时，分子内部偶极矩的排列。简单来说，它描述了介电材料中的分子如何在电场的影响下重新定向，从而产生净极化效应。这种现象主要发生在极性分子中，这些分子由于电子的不均匀分布而具有永久偶极矩。当施加电场时，这些偶极子会倾向于与电场方向对齐，从而增强材料的整体极化。取向极化背后的机制可以通过考虑极性物质的分子结构来理解。例如，水（H2O）就是一个经典的极性分子示例。氧原子比氢原子更具电负性，导致氧附近出现部分负电荷，而氢附近则出现部分正电荷。当施加电场时，水分子会旋转以与电场对齐，从而导致极化增加。这个过程依赖于温度；在较高的温度下，分子的热运动可能会妨碍它们的对齐能力，从而影响极化的程度。取向极化的重要性超越了理论理解；它在各种技术应用中具有深远的影响。例如，在电容器中，介电材料经历取向极化的能力显著影响其电容。具有高介电常数的材料，表示其强烈的极化能力，是电容器设计的首选，因为它们可以储存更多的电能。此外，取向极化在电子领域也至关重要，特别是在铁电材料的开发中。这些材料表现出自发极化，意味着它们可以在没有外部电场的情况下保持极化状态。这一特性在非易失性存储设备中得到利用，例如铁电随机存取存储器（FeRAM），在速度和能量效率方面优于传统存储技术。理解取向极化还有助于传感器和执行器的设计。例如，压电材料在机械应力下产生电荷，依赖于极化的原理。通过操控这些材料内部偶极子的取向，工程师可以制造出有效响应外部刺激的设备，使其在医疗设备到工业自动化等各种应用中都显得无价。总之，取向极化是一个基本概念，连接了分子行为与技术应用之间的桥梁。通过理解偶极子如何响应电场排列，科学家和工程师能够创新并改善各种电子和机电设备的性能。随着我们在材料科学领域的不断进步，对取向极化的理解无疑将在塑造未来技术方面发挥关键作用，为我们不断发展的世界提供更高效和可持续的解决方案。