thermal resistivity

简明释义

热阻率

英英释义

例句

1.The thermal resistivity of the material determines how well it can insulate against heat.

材料的热阻决定了它隔热的能力。

2.The thermal resistivity of a substance can change with temperature, affecting its performance.

物质的热阻可能会随温度变化而改变，影响其性能。

3.Materials with high thermal resistivity are used in thermal barriers to prevent heat transfer.

高热阻材料用于热障，以防止热量传递。

4.Engineers often measure the thermal resistivity of various substances to select the best insulation.

工程师们通常测量各种物质的热阻以选择最佳绝缘材料。

5.In building construction, low thermal resistivity materials are preferred for energy efficiency.

在建筑施工中，低热阻材料因其能源效率而受到青睐。

作文

Thermal resistivity is a crucial property in the field of materials science and engineering. It refers to the ability of a material to resist the flow of heat through it. Understanding thermal resistivity (热阻率) is essential for designing effective thermal insulation systems, which are vital in various applications, including construction, electronics, and aerospace. In this essay, we will explore the concept of thermal resistivity (热阻率), its significance, and its applications in different industries.The concept of thermal resistivity (热阻率) can be understood through the lens of thermal conductivity, which is the measure of a material's ability to conduct heat. While thermal conductivity indicates how well heat can flow through a material, thermal resistivity (热阻率) provides insight into how much a material resists that flow. The relationship between these two properties is inversely proportional; as thermal conductivity increases, thermal resistivity (热阻率) decreases, and vice versa. This relationship is critical when selecting materials for specific applications where temperature control is necessary.In the construction industry, thermal resistivity (热阻率) plays a significant role in energy efficiency. Buildings require proper insulation to maintain comfortable indoor temperatures while minimizing energy consumption. Materials with high thermal resistivity (热阻率) are often used in insulation products, as they effectively reduce heat transfer between the interior and exterior environments. For instance, fiberglass and foam board are common insulating materials due to their high thermal resistivity (热阻率). By using such materials, builders can create energy-efficient homes that reduce heating and cooling costs, ultimately benefiting both homeowners and the environment.In the electronics industry, managing heat is crucial for ensuring the reliability and performance of devices. Components such as processors and power transistors generate significant amounts of heat during operation. To prevent overheating, engineers must consider the thermal resistivity (热阻率) of the materials used in the design of circuit boards and heat sinks. Materials with low thermal resistivity (热阻率) are preferred in these applications, as they allow heat to dissipate quickly, thereby protecting sensitive components from damage. Additionally, advancements in thermal interface materials (TIMs) have been made to enhance heat transfer between components and heat sinks, further emphasizing the importance of understanding thermal resistivity (热阻率).Aerospace engineering also benefits from the knowledge of thermal resistivity (热阻率). Aircraft and spacecraft are subjected to extreme temperature variations during flight. The materials used in these vehicles must withstand high temperatures while maintaining structural integrity. Engineers often select materials with specific thermal resistivity (热阻率) characteristics to ensure that the heat generated during flight does not compromise the safety and performance of the vehicle. For example, heat shields made from advanced ceramics are designed to have high thermal resistivity (热阻率) to protect the underlying structure from intense heat during re-entry into the Earth's atmosphere.In conclusion, thermal resistivity (热阻率) is a vital property that influences the performance and efficiency of materials across various industries. Its understanding aids in the design of effective insulation systems in construction, enhances heat management in electronics, and ensures safety in aerospace applications. As technology continues to advance, the study of thermal resistivity (热阻率) will remain an important area of research, leading to the development of innovative materials that meet the demands of modern engineering challenges.