undercooling

简明释义

英[ˌʌndərˈkuːlɪŋ]美[ˌʌndərˈkuːlɪŋ]

n. [热]过冷；低冷却

vt. 使……过度冷却（undercool 的 ing 形式）

英英释义

单词用法

同义词

反义词

例句

1.This paper has researched on the effects of the system pressure, undercooling, inhibitors concentration, gas condensate and the methanol on hydrate formation kinetics.

研究了系统压力、过冷度、抑制剂浓度、凝析油、甲醇对水合物生成动力学的影响。

2.Undercooling production technology of bulk nanometer material was introduced, questions to be solved to preparing bulk nanometer materials were pointed out in this paper.

块体纳米材料是纳米材料的重要组成部分，制备块体纳米材料是实现纳米材料大范围应用的关键。

3.Thermostatic type trap large undercooling, low emission pool water Redu, the use of low-temperature condensed water can be enough sensible heat, energy-saving motive is good.

热静力型疏水阀过冷度大，排凝聚水热度低，能够充足利用低温凝聚水的显热，节能动机好。

4.The main reason that rare earth cerium can improve elongation of ZA27 alloy is that cerium increases the compositional undercooling of the alloy.

稀土铈改善ZA2 7合金塑性的主要原因是铈增加了合金的成分过冷。

5.The DTA method was employed to measure the undercooling of samples during solidification.

利用差热分析法测定了试样在相同冷却速度下的过冷度。

6.In this paper the critical nucleation radius of metals under the highly undercooling condition has been drawn out.

本文给出了深过冷条件下金属的临界形核半径。

7.The growth velocity of the crystal depends on the undercooling, temperature gradient and original particles in the precursor.

晶体生长速率取决于过冷度、温度梯度和初始粉末颗粒尺寸。

8.The undercooling phenomenon can enhance the efficiency of heat exchangers.

过冷却现象可以提高热交换器的效率。

9.During the experiment, we intentionally induced undercooling to study its effects.

在实验中，我们故意诱导过冷却以研究其影响。

10.Scientists observed that undercooling leads to a more stable ice structure.

科学家观察到，过冷却导致更稳定的冰结构。

11.In metallurgy, undercooling can affect the properties of the final metal product.

在冶金学中，过冷却会影响最终金属产品的性质。

12.The process of undercooling is crucial in the formation of certain types of crystals.

在某些类型的晶体形成中，过冷却过程至关重要。

作文

Undercooling is a fascinating phenomenon that occurs in various physical processes, particularly in the context of thermodynamics and material science. It refers to the state where a liquid is cooled below its freezing point without it becoming solid. This unusual behavior can be observed in many substances, including water, which can remain in a liquid state even at temperatures as low as -40 degrees Celsius under certain conditions. Understanding undercooling (过冷) is essential for scientists and engineers who work with materials and their properties.One of the most intriguing aspects of undercooling (过冷) is its implications in nature and technology. For instance, in the natural world, supercooled water droplets can exist in clouds, which can lead to the formation of ice when they eventually freeze upon contact with surfaces. This process is crucial in meteorology, particularly in understanding precipitation and the formation of ice storms.In industrial applications, undercooling (过冷) plays a vital role in the production of metals and alloys. During the cooling phase of metal casting, controlling the temperature is critical. If the molten metal is cooled rapidly enough, it may become undercooled (过冷), allowing for the formation of finer microstructures that can enhance the strength and durability of the final product. This is why metallurgists pay close attention to the cooling rates during the solidification process.The study of undercooling (过冷) also extends into the realm of crystallization. When a substance is undercooled (过冷), it can lead to non-equilibrium crystallization, where crystals form in a manner that deviates from the typical patterns. This can result in unique properties for the crystals, which can be beneficial in various applications, such as pharmaceuticals, where the solubility of a drug can be significantly affected by its crystalline form.Moreover, undercooling (过冷) has implications in the field of cryogenics. In cryogenic processes, materials are often cooled to extremely low temperatures, and understanding how undercooling (过冷) works can help in designing better systems for storing and transporting liquefied gases. It is essential to manage the temperature carefully to prevent unwanted phase changes that could compromise the integrity of the materials involved.In conclusion, undercooling (过冷) is not just a simple scientific concept; it is a multi-faceted phenomenon with wide-ranging implications across various fields. From meteorology to metallurgy and cryogenics, the understanding of undercooling (过冷) aids in advancing technology and improving our comprehension of natural processes. As research continues in this area, we can expect to uncover even more applications and insights related to this intriguing state of matter. The study of undercooling (过冷) exemplifies the interconnectedness of scientific disciplines and highlights the importance of deepening our understanding of the physical world around us.

过冷是一个迷人的现象，它在各种物理过程中发生，特别是在热力学和材料科学的背景下。它指的是液体在未固化的情况下被冷却到其冰点以下的状态。这种不寻常的行为可以在许多物质中观察到，包括水，在某些条件下，水可以在低至-40摄氏度的温度下保持液态。理解过冷对于从事材料及其特性的科学家和工程师来说至关重要。过冷的一个最引人入胜的方面是它在自然界和技术中的意义。例如，在自然界中，超冷水滴可以存在于云中，这可能会导致它们在接触表面时最终冻结，从而形成冰。这一过程在气象学中至关重要，特别是在理解降水和冰暴的形成方面。在工业应用中，过冷在金属和合金的生产中发挥着重要作用。在金属铸造的冷却阶段，控制温度至关重要。如果熔融金属冷却得足够快，它可能会变得过冷，从而允许形成更细的微观结构，这可以增强最终产品的强度和耐久性。这就是为什么冶金学家在固化过程中密切关注冷却速率的原因。对过冷的研究还扩展到结晶领域。当物质处于过冷状态时，可能会导致非平衡结晶，其中晶体的形成方式偏离典型模式。这可能导致晶体具有独特的特性，这在各种应用中都是有益的，例如在制药行业，药物的溶解度可能会受到其晶体形式的显著影响。此外，过冷在低温技术领域也有重要意义。在低温过程中，材料通常被冷却到极低的温度，理解过冷的工作原理可以帮助设计更好的系统来储存和运输液化气体。仔细管理温度以防止不必要的相变，这可能会危及相关材料的完整性，是至关重要的。总之，过冷不仅仅是一个简单的科学概念；它是一个多方面的现象，在各个领域具有广泛的意义。从气象学到冶金学和低温技术，对过冷的理解有助于推动技术进步，并改善我们对自然过程的理解。随着这一领域研究的持续进行，我们可以期待揭示与这一引人入胜的物质状态相关的更多应用和见解。对过冷的研究展示了科学学科之间的相互联系，并强调了加深我们对周围物理世界理解的重要性。