grain size distribution

简明释义

粒度分布

英英释义

例句

1.In materials science, the grain size distribution 颗粒大小分布 affects the mechanical properties of metals.

在材料科学中，颗粒大小分布 grain size distribution影响金属的机械性能。

2.Understanding the grain size distribution 颗粒大小分布 helps geologists predict the behavior of soil during earthquakes.

理解颗粒大小分布 grain size distribution有助于地质学家预测土壤在地震中的行为。

3.Researchers often measure the grain size distribution 颗粒大小分布 to assess the quality of construction materials.

研究人员通常测量颗粒大小分布 grain size distribution以评估建筑材料的质量。

4.The study of the grain size distribution 颗粒大小分布 in sedimentary rocks can reveal their depositional environment.

沉积岩中对颗粒大小分布 grain size distribution的研究可以揭示它们的沉积环境。

5.The grain size distribution 颗粒大小分布 of a sand sample can be analyzed using a laser diffraction method.

可以使用激光衍射法分析沙子样品的颗粒大小分布 grain size distribution。

作文

Grain size distribution is a crucial concept in various fields, including geology, materials science, and engineering. It refers to the proportion of different grain sizes present in a given sample of material. Understanding grain size distribution is essential because it influences the physical properties of materials, such as strength, permeability, and reactivity. For instance, in sedimentology, the grain size distribution of sediments can provide insights into the transportation and depositional processes that shaped a particular geological formation. In addition to geological applications, grain size distribution plays a significant role in the manufacturing and processing of materials. In metallurgy, the grain size of metals can affect their mechanical properties. Smaller grains generally lead to stronger materials due to the increased number of grain boundaries, which impede the movement of dislocations. Therefore, controlling the grain size distribution during the production process can enhance the performance of metal products.Moreover, in the field of civil engineering, understanding the grain size distribution of soil is vital for construction projects. The stability and load-bearing capacity of foundations depend on the characteristics of the underlying soil. Engineers often conduct tests to determine the grain size distribution of soil samples to predict how they will behave under load and to design appropriate foundations.The methods used to analyze grain size distribution vary depending on the material being studied. Common techniques include sieve analysis, laser diffraction, and image analysis. Sieve analysis involves passing a sample through a series of sieves with varying mesh sizes and calculating the proportion of material retained on each sieve. Laser diffraction, on the other hand, measures the scattering of laser light by particles in a suspension to determine their size distribution. Each method has its advantages and limitations, and the choice of technique often depends on the specific requirements of the study.In conclusion, grain size distribution is a fundamental parameter that affects the properties and behavior of various materials across multiple disciplines. Its significance cannot be overstated, as it impacts everything from the strength of metals to the stability of soil in construction. By employing appropriate analytical techniques, scientists and engineers can gain valuable insights into material behavior, leading to better designs and applications. As research continues to advance, our understanding of grain size distribution will undoubtedly improve, paving the way for innovations in material science and engineering.

粒径分布是多个领域中的一个重要概念，包括地质学、材料科学和工程学。它指的是在给定材料样本中不同粒径的比例。理解粒径分布至关重要，因为它影响材料的物理特性，如强度、渗透性和反应性。例如，在沉积学中，沉积物的粒径分布可以提供关于塑造特定地质构造的运输和沉积过程的见解。除了地质应用外，粒径分布在材料的制造和加工中也起着重要作用。在冶金学中，金属的粒径可以影响其机械性能。较小的颗粒通常会导致更强的材料，因为增加的晶界数量阻碍了位错的运动。因此，在生产过程中控制粒径分布可以提高金属产品的性能。此外，在土木工程领域，了解土壤的粒径分布对建设项目至关重要。基础的稳定性和承载能力取决于下方土壤的特性。工程师通常会进行测试，以确定土壤样本的粒径分布，以预测它们在负载下的行为，并设计合适的基础。分析粒径分布的方法因研究的材料而异。常见的技术包括筛分分析、激光衍射和图像分析。筛分分析涉及将样本通过一系列具有不同网眼大小的筛子，并计算每个筛子上保留的材料比例。激光衍射则通过测量粒子在悬浮液中散射的激光光线来确定它们的粒径分布。每种方法都有其优缺点，选择技术通常取决于研究的具体要求。总之，粒径分布是影响多个学科中各种材料特性和行为的基本参数。它的重要性不容忽视，因为它影响从金属的强度到建筑中土壤的稳定性的一切。通过采用适当的分析技术，科学家和工程师可以获得有关材料行为的宝贵见解，从而导致更好的设计和应用。随着研究的不断进展，我们对粒径分布的理解无疑会得到改善，为材料科学和工程学的创新铺平道路。