thermal expansion coefficient

简明释义

热膨胀系数

英英释义

例句

1.Glass has a low thermal expansion coefficient, making it ideal for high-temperature applications.

玻璃的热膨胀系数较低，使其非常适合高温应用。

2.The thermal expansion coefficient of concrete is crucial for determining how it will behave under temperature changes.

混凝土的热膨胀系数对于确定其在温度变化下的表现至关重要。

3.The thermal expansion coefficient of metals is typically higher than that of ceramics, which affects their applications in engineering.

金属的热膨胀系数通常高于陶瓷，这影响了它们在工程中的应用。

4.When designing bridges, engineers must consider the thermal expansion coefficient of the materials to prevent structural damage.

在设计桥梁时，工程师必须考虑材料的热膨胀系数以防止结构损坏。

5.In electronics, a mismatch in the thermal expansion coefficient between components can lead to failure.

在电子产品中，组件之间的热膨胀系数不匹配可能导致故障。

作文

The concept of thermal expansion is crucial in various fields of science and engineering. When materials are subjected to changes in temperature, they tend to expand or contract. This phenomenon is particularly significant in construction, manufacturing, and even everyday life. Understanding how different materials respond to heat is essential for ensuring the integrity and functionality of structures and devices. One of the key parameters that describe how a material expands with temperature is its thermal expansion coefficient (热膨胀系数). This coefficient quantifies the change in size or volume of a material as it experiences a change in temperature. For instance, metals typically have higher thermal expansion coefficients than ceramics or glass. This means that when heated, metals will expand more significantly than these other materials. Engineers must take this into account when designing bridges, railways, and pipelines, where temperature fluctuations can lead to structural failures if not properly managed. For example, the expansion of steel rails during hot weather can cause tracks to buckle if there isn’t enough space for the rails to expand. In addition to construction, the thermal expansion coefficient also plays a vital role in the manufacturing of electronic devices. Many components in electronics are made from different materials, each with its own thermal expansion coefficient. When these components heat up during operation, they can expand at different rates, potentially leading to mechanical stress and failure. Therefore, engineers must select materials that have compatible thermal expansion coefficients to ensure reliability and longevity of electronic products. Moreover, understanding the thermal expansion coefficient is essential in the field of thermodynamics, especially when dealing with gases and liquids. The behavior of fluids under varying temperatures is governed by their thermal expansion coefficients, which can affect everything from weather patterns to industrial processes. For instance, the expansion of water as it heats up can influence ocean currents and climate. In summary, the thermal expansion coefficient (热膨胀系数) is a fundamental property that describes how materials respond to temperature changes. Its implications span across various disciplines, including construction, manufacturing, electronics, and thermodynamics. A thorough understanding of this concept is vital for engineers and scientists alike, enabling them to design safer and more efficient systems. As technology advances, the importance of accurately measuring and applying the thermal expansion coefficient will only continue to grow, highlighting the need for ongoing research and education in this area.