metastable state

简明释义

亚稳状态

英英释义

例句

1.The metastable state 亚稳态 of a chemical compound might lead to unexpected reactions under certain conditions.

化合物的metastable state 亚稳态可能在某些条件下导致意外反应。

2.During the cooling process, the system may temporarily settle into a metastable state 亚稳态 before reaching equilibrium.

在冷却过程中，系统可能会暂时陷入一个metastable state 亚稳态，然后再达到平衡。

3.In quantum mechanics, particles can exist in a metastable state 亚稳态 for longer than expected, affecting their behavior.

在量子力学中，粒子可以存在于比预期更长时间的metastable state 亚稳态，影响其行为。

4.In materials science, a supercooled liquid can exist in a metastable state 亚稳态 before crystallizing.

在材料科学中，超冷液体可以在结晶之前存在于一个metastable state 亚稳态。

5.Certain alloys display a metastable state 亚稳态 that can enhance their mechanical properties.

某些合金表现出一种可以增强其机械性能的metastable state 亚稳态。

作文

In the realm of physics and chemistry, the concept of a metastable state refers to a condition that is stable under certain conditions but can transition to a more stable state when subjected to specific stimuli. This idea is crucial in understanding various phenomena, from the behavior of materials to the processes occurring in biological systems. A metastable state is not the lowest energy state available; rather, it represents a local minimum in the energy landscape, which means that while the system may appear stable, it has the potential to change if disturbed sufficiently.For example, consider the case of supercooled water. Under normal conditions, water freezes at 0 degrees Celsius. However, if water is cooled below this temperature without forming ice, it enters a metastable state. In this state, the water remains liquid even though it is thermodynamically unstable. If the supercooled water is disturbed, such as by introducing an ice crystal or agitating the liquid, it will rapidly transition to the solid state, releasing latent heat in the process. This illustrates how a metastable state can exist within a system and how it can be influenced by external factors.The concept of metastable states extends beyond simple physical examples; it also plays a significant role in the field of materials science. For instance, certain alloys can exist in a metastable state where their microstructure is neither fully ordered nor completely disordered. These materials can exhibit unique properties that differ from their stable counterparts, making them valuable for various applications. Researchers often manipulate these metastable states to enhance the performance of materials, such as increasing strength or improving corrosion resistance.Furthermore, the idea of metastable states is also relevant in biological systems. Many biochemical reactions occur in a series of steps, with enzymes facilitating the transition between different states. Some of these intermediate states can be considered metastable, as they are essential for the overall reaction to proceed but are not the final product. Understanding these transitions helps scientists develop better drugs and therapies by targeting specific metastable states within metabolic pathways.In summary, the notion of a metastable state is fundamental in various scientific disciplines. It highlights the complexity of systems that can appear stable yet have the potential for significant changes under the right conditions. By studying metastable states, researchers can unlock new possibilities in material design, chemical reactions, and biological processes. The exploration of these states not only deepens our understanding of the natural world but also opens doors to technological advancements that can benefit society as a whole. As we continue to investigate these intriguing states of matter, we may discover even more applications and phenomena that challenge our current understanding of stability and change.

在物理和化学领域，亚稳态的概念指的是在某些条件下稳定，但在特定刺激下可以转变为更稳定状态的条件。这个想法对于理解各种现象至关重要，从材料的行为到生物系统中发生的过程。亚稳态并不是可用的最低能量状态；相反，它代表了能量景观中的局部最小值，这意味着虽然系统看起来稳定，但在受到足够干扰时它有潜力发生变化。例如，考虑过冷水的情况。在正常条件下，水在0摄氏度时结冰。然而，如果水被冷却到低于这个温度而不形成冰，它就进入了亚稳态。在这种状态下，水保持液态，即使它在热力学上是不稳定的。如果过冷水被扰动，例如通过引入冰晶或搅动液体，它将迅速转变为固态，并在此过程中释放潜热。这说明了亚稳态如何存在于系统中以及如何受到外部因素的影响。亚稳态的概念不仅限于简单的物理例子；它在材料科学领域也发挥着重要作用。例如，某些合金可以处于亚稳态，其微观结构既不是完全有序的也不是完全无序的。这些材料可以展现出与其稳定对应物不同的独特性质，使它们在各种应用中具有价值。研究人员经常操纵这些亚稳态以增强材料的性能，例如提高强度或改善耐腐蚀性。此外，亚稳态的想法在生物系统中同样相关。许多生化反应以一系列步骤进行，酶促进不同状态之间的转变。其中一些中间状态可以被视为亚稳态，因为它们对整体反应的进行至关重要，但并不是最终产品。理解这些转变有助于科学家通过针对代谢途径中的特定亚稳态来开发更好的药物和疗法。总之，亚稳态的概念在各个科学学科中都是基础性的。它突显了那些看似稳定但在适当条件下具有显著变化潜力的系统的复杂性。通过研究亚稳态，研究人员可以解锁材料设计、化学反应和生物过程中的新可能性。对这些状态的探索不仅加深了我们对自然世界的理解，还为科技进步开辟了有益于整个社会的道路。随着我们继续研究这些引人入胜的物质状态，我们可能会发现更多挑战我们当前对稳定性和变化理解的应用和现象。