thermal barrier

简明释义

跃变层

英英释义

例句

1.The new insulation material serves as an effective thermal barrier 热障 that reduces energy loss in buildings.

新型绝缘材料作为有效的热障，减少了建筑物的能量损失。

2.To improve efficiency, engineers designed a thermal barrier 热障 for the engine to withstand high temperatures.

为了提高效率，工程师为发动机设计了一个热障，以承受高温。

3.The thermal barrier 热障 coating on the metal parts prevents overheating.

金属部件上的热障涂层防止过热。

4.The thermal barrier 热障 in this product helps maintain optimal operating temperatures.

此产品中的热障有助于保持最佳工作温度。

5.Using a thermal barrier 热障 in refrigeration systems can significantly enhance performance.

在制冷系统中使用热障可以显著提高性能。

作文

In the realm of engineering and materials science, the concept of a thermal barrier plays a crucial role in enhancing the performance and longevity of various systems. A thermal barrier is essentially a layer of material that is designed to resist the transfer of heat. This characteristic is particularly important in applications where high temperatures are prevalent, such as in aerospace, automotive, and power generation industries. The primary function of a thermal barrier is to protect sensitive components from extreme thermal environments, thereby improving their reliability and efficiency.One of the most notable examples of thermal barriers can be found in jet engines. These engines operate at incredibly high temperatures, which can exceed 1,500 degrees Celsius. To ensure that critical components, such as turbine blades, do not fail due to thermal stress, engineers apply thermal barrier coatings. These coatings are typically made from ceramic materials that have low thermal conductivity, allowing them to insulate the underlying metal components from the intense heat generated during combustion.The effectiveness of a thermal barrier is determined by several factors, including its material composition, thickness, and the temperature gradient it must withstand. For instance, advanced ceramics like yttria-stabilized zirconia (YSZ) are commonly used for thermal barrier coatings because of their excellent thermal resistance and stability at high temperatures. The application of these coatings not only protects the components but also enhances the overall efficiency of the engine by allowing it to operate at higher temperatures, which translates to improved fuel efficiency and reduced emissions.In addition to aerospace applications, thermal barriers are also essential in the automotive industry. Modern vehicles often incorporate thermal barriers in various components, such as exhaust systems and engine covers, to manage heat dissipation effectively. By minimizing heat transfer, these barriers help to maintain optimal operating temperatures for engine components, which can lead to increased performance and durability.Moreover, the concept of a thermal barrier extends beyond mechanical applications. In the field of building construction, thermal barriers are utilized to improve energy efficiency in structures. Insulation materials, such as fiberglass or foam, act as thermal barriers by reducing heat flow between the interior and exterior of buildings. This helps to maintain comfortable indoor temperatures while lowering energy consumption for heating and cooling.As we continue to advance in technology and materials science, the development of more effective thermal barriers remains a priority. Researchers are exploring innovative materials and techniques to enhance the performance of thermal barriers, including nanostructured coatings and advanced composites. These advancements hold the potential to revolutionize various industries by enabling higher performance standards and greater energy efficiency.In conclusion, the significance of a thermal barrier cannot be overstated. Whether in aerospace, automotive, or construction, thermal barriers serve as essential components that protect against heat transfer, improve efficiency, and prolong the lifespan of critical systems. As technology progresses, the ongoing research and development in this field will undoubtedly lead to even more sophisticated solutions that address the challenges posed by heat management in various applications.

在工程和材料科学领域，热障的概念在提高各种系统的性能和寿命方面发挥着至关重要的作用。热障本质上是设计用来抵抗热量传递的材料层。这一特性在航空航天、汽车和发电等高温环境中尤为重要。热障的主要功能是保护敏感部件免受极端热环境的影响，从而提高它们的可靠性和效率。最显著的热障示例可以在喷气发动机中找到。这些发动机在极高的温度下运行，可能超过1500摄氏度。为了确保关键组件（如涡轮叶片）不会因热应力而失效，工程师会施加热障涂层。这些涂层通常由陶瓷材料制成，具有低热导率，使其能够将底层金属组件与燃烧过程中产生的强烈热量隔离。热障的有效性取决于多个因素，包括其材料成分、厚度和必须承受的温度梯度。例如，氧化钇稳定的锆石（YSZ）等先进陶瓷材料通常用于热障涂层，因为它们在高温下具有优异的耐热性和稳定性。这些涂层的应用不仅保护了组件，还通过允许发动机在更高温度下运行来提高整体效率，这转化为更好的燃油效率和减少排放。除了航空航天应用，热障在汽车工业中也至关重要。现代车辆通常在各种组件中采用热障，例如排气系统和发动机盖，以有效管理热量散发。通过最小化热传递，这些障碍有助于保持发动机组件的最佳工作温度，从而提高性能和耐用性。此外，热障的概念还扩展到建筑施工领域。在建筑中，热障被用于提高结构的能源效率。绝缘材料（如玻璃纤维或泡沫）作为热障，通过减少室内和室外之间的热流来发挥作用。这有助于维持舒适的室内温度，同时降低供暖和制冷的能耗。随着我们在技术和材料科学方面的不断进步，开发更有效的热障仍然是一个优先事项。研究人员正在探索创新材料和技术，以增强热障的性能，包括纳米结构涂层和先进复合材料。这些进展有望通过使更高的性能标准和更大的能源效率成为可能，彻底改变各个行业。总之，热障的重要性不容小觑。无论是在航空航天、汽车还是建筑领域，热障作为保护热传递、提高效率和延长关键系统寿命的基本组成部分。随着技术的进步，该领域的持续研究和开发无疑将导致更复杂的解决方案，以应对各种应用中热管理所带来的挑战。