metastable state

简明释义

亚稳状态

英英释义

例句

1.A bubble in a liquid can be considered a metastable state until it either bursts or dissolves.

液体中的气泡可以被视为一种亚稳态，直到它要么破裂，要么溶解。

2.In certain chemical reactions, the products can exist in a metastable state, making them susceptible to decomposition.

在某些化学反应中，产物可以存在于亚稳态，使其易于分解。

3.The researchers studied how the material behaves when it is in a metastable state under different temperature conditions.

研究人员研究了材料在不同温度条件下处于亚稳态时的行为。

4.The system remained in a metastable state for hours before finally transitioning to a stable configuration.

该系统在亚稳态下维持了数小时，最终才转变为稳定配置。

5.The metastable state of the crystal structure was confirmed through X-ray diffraction experiments.

通过X射线衍射实验确认了晶体结构的亚稳态。

作文

In the realm of physics and chemistry, the concept of a metastable state is crucial for understanding various phenomena. A metastable state refers to a condition in which a system remains stable for an extended period, despite being in a state that is not the most energetically favorable. This can be observed in different contexts, such as in the formation of certain crystals or the behavior of certain particles. For instance, when water is cooled below its freezing point without forming ice, it exists in a metastable state. In this situation, the water can remain liquid even at temperatures where one would typically expect it to freeze. This intriguing behavior arises because the molecules are in a delicate balance; they have not yet formed the structured arrangement necessary for ice, but they are also not unstable enough to transition back to the gaseous state.The significance of metastable states extends beyond mere curiosity. In materials science, understanding these states can lead to the development of new materials with desirable properties. For example, certain alloys can exist in a metastable state that enhances their strength or resistance to corrosion. Researchers often seek to manipulate these states to create materials that can withstand extreme conditions or exhibit unique characteristics.Moreover, the concept of metastable states is vital in the field of nuclear physics. Certain isotopes can exist in metastable states, meaning they are stable for a considerable time before decaying into more stable forms. This property is exploited in various applications, including medical imaging and radiation therapy. By harnessing the energy released during the transition from a metastable state to a more stable state, scientists can develop effective treatments for diseases like cancer.In addition to practical applications, metastable states provide insight into the fundamental principles of thermodynamics and kinetics. They challenge our understanding of equilibrium and stability. A system in a metastable state may appear stable, yet it is always on the verge of transitioning to a lower-energy state if perturbed by external conditions. This characteristic makes metastable states an essential topic of study for physicists and chemists who aim to comprehend how systems behave under varying conditions.In conclusion, the concept of a metastable state is a fascinating aspect of science that has far-reaching implications. From the formation of ice in supercooled water to the creation of advanced materials and the exploration of nuclear decay, metastable states play a vital role in our understanding of the natural world. As research continues to uncover the mysteries of these states, we can anticipate new innovations and discoveries that stem from this intriguing phenomenon. The exploration of metastable states not only enhances our scientific knowledge but also paves the way for technological advancements that can improve our lives in numerous ways.

在物理和化学领域，亚稳态的概念对于理解各种现象至关重要。亚稳态是指一个系统在一种并非最有利能量状态下保持稳定的一种条件，尽管这种状态不是能量上最优的。这种现象可以在不同的上下文中观察到，例如某些晶体的形成或某些粒子的行为。例如，当水被冷却到其冰点以下而不形成冰时，它处于一种亚稳态。在这种情况下，水可以在通常预期会冻结的温度下保持液态。这种引人入胜的行为源于分子之间的微妙平衡；它们尚未形成冰所需的结构排列，但也没有不稳定到足以转变为气态。亚稳态的重要性不仅仅是出于好奇。在材料科学中，理解这些状态可以导致新材料的开发，这些材料具有理想的特性。例如，某些合金可以存在于一种亚稳态中，从而增强其强度或抗腐蚀性。研究人员常常试图操控这些状态，以创造能够承受极端条件或表现出独特特性的材料。此外，亚稳态的概念在核物理领域也是至关重要的。某些同位素可以存在于亚稳态中，意味着它们在相当长的时间内保持稳定，然后衰变为更稳定的形式。这一特性在各种应用中得到了利用，包括医学成像和放射治疗。通过利用从亚稳态转变到更稳定状态时释放的能量，科学家可以开发出有效的癌症治疗方法。除了实际应用外，亚稳态还为热力学和动力学的基本原理提供了洞察。它们挑战我们对平衡和稳定性的理解。处于亚稳态的系统可能看起来是稳定的，但它始终处于由于外部条件扰动而过渡到较低能量状态的边缘。这一特征使得亚稳态成为物理学家和化学家研究的一个重要课题，他们旨在理解系统在不同条件下的行为。总之，亚稳态的概念是科学中的一个迷人方面，具有深远的影响。从超冷水中冰的形成到先进材料的创造以及核衰变的探索，亚稳态在我们理解自然界中扮演着重要角色。随着研究继续揭示这些状态的奥秘，我们可以期待从这一引人入胜的现象中产生新的创新和发现。对亚稳态的探索不仅增强了我们的科学知识，也为技术进步铺平了道路，这些进步可以在许多方面改善我们的生活。