crystal grain

简明释义

晶粒

英英释义

例句

1.In geology, the crystal grain can reveal important information about the history of the rock.

在地质学中，水晶颗粒可以揭示岩石历史的重要信息。

2.The artist used a microscope to study the crystal grain in the paint for her masterpiece.

艺术家使用显微镜研究她的杰作中的水晶颗粒。

3.The jeweler examined the piece closely, noting the size and clarity of each crystal grain.

珠宝匠仔细检查了这件作品，注意到每个水晶颗粒的大小和清晰度。

4.The quality of the glass is often determined by the uniformity of the crystal grain.

玻璃的质量通常由其水晶颗粒的均匀性决定。

5.Each crystal grain in the mineral sample was analyzed for its chemical composition.

矿物样本中的每个水晶颗粒都被分析其化学成分。

作文

The term crystal grain refers to the small, individual crystals that make up a larger crystalline material. In materials science and engineering, understanding the structure and behavior of these crystal grains is essential for predicting how a material will perform under various conditions. Each crystal grain can influence the overall properties of the material, such as its strength, ductility, and resistance to corrosion.When we look at metals, for instance, the arrangement and size of the crystal grains can significantly impact their mechanical properties. Smaller crystal grains generally lead to stronger and tougher materials due to the grain boundary strengthening mechanism. This phenomenon is known as the Hall-Petch relationship, which states that as the grain size decreases, the yield strength of the material increases. Therefore, engineers often aim to refine the crystal grain size during the manufacturing process to enhance the performance of metals used in construction, automotive, and aerospace applications.In addition to metals, crystal grains are also important in ceramics and polymers. For example, in ceramic materials, the crystal grains contribute to the hardness and brittleness of the final product. The distribution and orientation of these crystal grains can be manipulated through various processing techniques to achieve desired properties. Similarly, in polymers, the arrangement of crystal grains can affect the thermal and mechanical properties, influencing how these materials are utilized in everyday products.Furthermore, the study of crystal grains extends beyond just their physical properties. In geology, the size and shape of crystal grains found in rocks can provide valuable information about the history of the Earth and the conditions under which the rock was formed. Geologists analyze crystal grains to understand processes like crystallization, metamorphism, and weathering, which are crucial for reconstructing geological events.In conclusion, the concept of crystal grain plays a vital role across various fields, including materials science, engineering, and geology. By studying the characteristics and behaviors of crystal grains, scientists and engineers can develop better materials and gain insights into natural processes. Whether it is enhancing the strength of a metal or understanding the formation of rocks, the significance of crystal grains cannot be overstated. As technology advances, the manipulation and control of crystal grains will continue to be a key area of research, leading to innovations that improve the quality and performance of materials used in our daily lives.

术语晶粒指的是构成更大晶体材料的小型独立晶体。在材料科学和工程中，理解这些晶粒的结构和行为对于预测材料在各种条件下的表现至关重要。每个晶粒都可以影响材料的整体特性，例如其强度、延展性和耐腐蚀性。例如，当我们观察金属时，晶粒的排列和大小可以显著影响其机械性能。较小的晶粒通常会导致材料更强且更韧，这归因于晶界强化机制。这一现象被称为霍尔-佩奇关系，该关系表明，随着晶粒尺寸的减小，材料的屈服强度增加。因此，工程师们通常在制造过程中旨在细化晶粒大小，以增强用于建筑、汽车和航空航天应用的金属性能。除了金属，晶粒在陶瓷和聚合物中也很重要。例如，在陶瓷材料中，晶粒有助于最终产品的硬度和脆性。这些晶粒的分布和取向可以通过各种加工技术进行操控，以实现所需的特性。同样，在聚合物中，晶粒的排列可以影响热和机械特性，从而影响这些材料在日常产品中的应用。此外，晶粒的研究不仅限于其物理特性。在地质学中，岩石中发现的晶粒的大小和形状可以提供有关地球历史和岩石形成条件的宝贵信息。地质学家分析晶粒以了解结晶、变质和风化等过程，这对于重建地质事件至关重要。总之，晶粒的概念在材料科学、工程和地质学等多个领域发挥着重要作用。通过研究晶粒的特征和行为，科学家和工程师能够开发更好的材料并获得对自然过程的深入了解。无论是增强金属的强度还是理解岩石的形成，晶粒的重要性都不容忽视。随着技术的进步，操控和控制晶粒将继续成为一个关键研究领域，推动改善我们日常生活中使用的材料的质量和性能的创新。