unit cell

简明释义

单胞

英英释义

例句

1.In a cubic crystal system, the unit cell dimensions are equal in all three directions.单元胞

在立方晶体系统中，unit cell的尺寸在三个方向上都是相等的。单元胞

2.The arrangement of atoms within the unit cell determines the properties of the material.单元胞

原子在unit cell内的排列决定了材料的性质。单元胞

3.The smallest repeating unit in a crystal lattice is known as the unit cell.单元胞

晶体格中的最小重复单元称为unit cell。单元胞

4.X-ray diffraction can be used to analyze the unit cell structure of crystals.单元胞

X射线衍射可以用来分析晶体的unit cell结构。单元胞

5.To calculate the density of a material, you must first determine the volume of the unit cell.单元胞

要计算材料的密度，首先必须确定unit cell的体积。单元胞

作文

In the field of crystallography, understanding the concept of a unit cell is essential for studying the properties of crystalline materials. A unit cell is defined as the smallest repeating unit in a crystal lattice that retains the overall symmetry and structure of the entire crystal. This concept is fundamental because it allows scientists to describe and analyze the three-dimensional arrangement of atoms within a crystal. By examining the unit cell, researchers can gain insights into the material's physical and chemical properties, such as its density, thermal conductivity, and optical characteristics.The unit cell can be characterized by its dimensions and the angles between its edges. There are several types of unit cells, including simple cubic, body-centered cubic, face-centered cubic, and hexagonal close-packed structures. Each of these configurations has distinct arrangements of atoms that influence the behavior of the material. For instance, metals often crystallize in face-centered cubic or body-centered cubic structures, which contribute to their ductility and strength. Understanding the specific type of unit cell present in a material is crucial for predicting how it will respond to external forces or changes in temperature.Moreover, the study of unit cells extends beyond theoretical implications; it has practical applications in various industries. In the realm of materials science, engineers use knowledge of unit cells to design new materials with tailored properties for specific applications. For example, in semiconductor technology, the arrangement of atoms within the unit cell of silicon determines its electrical conductivity, which is vital for the performance of electronic devices. Similarly, in pharmaceuticals, the crystalline structure of drug compounds can affect their solubility and bioavailability, making the understanding of unit cells critical in drug development.Additionally, advancements in imaging techniques, such as X-ray diffraction, have enabled scientists to determine the precise arrangement of atoms within a unit cell. This information is invaluable for both academic research and industrial applications. By analyzing the diffraction patterns produced when X-rays interact with a crystal, researchers can deduce the dimensions and symmetry of the unit cell, leading to a deeper understanding of the material's properties.In conclusion, the concept of a unit cell is fundamental to the study of crystallography and materials science. It serves as the building block for understanding the complex arrangements of atoms in crystalline solids. By exploring the different types of unit cells and their implications, scientists and engineers can innovate and improve materials for a wide range of applications. The significance of the unit cell extends from theoretical frameworks to practical solutions, highlighting its importance in advancing technology and enhancing our understanding of the natural world.

在晶体学领域，理解“unit cell”这一概念对于研究晶体材料的性质至关重要。“unit cell”被定义为晶格中最小的重复单元，它保留了整个晶体的对称性和结构。这个概念是基础性的，因为它使科学家能够描述和分析晶体内原子的三维排列。通过检查“unit cell”，研究人员可以深入了解材料的物理和化学性质，例如其密度、热导率和光学特性。“unit cell”可以通过其尺寸和边缘之间的角度进行表征。有几种类型的“unit cells”，包括简单立方体、体心立方体、面心立方体和六方紧密堆积结构。每种配置都有独特的原子排列，这影响着材料的行为。例如，金属通常以面心立方或体心立方结构结晶，这有助于它们的延展性和强度。理解材料中存在的具体“unit cell”类型对于预测其如何响应外部力或温度变化至关重要。此外，“unit cells”的研究不仅限于理论意义；它在各个行业中具有实际应用。在材料科学领域，工程师利用对“unit cells”的知识设计具有特定应用的定制材料。例如，在半导体技术中，硅的“unit cell”中的原子排列决定了其电导率，这对电子设备的性能至关重要。同样，在制药领域，药物化合物的晶体结构会影响其溶解度和生物利用度，因此对“unit cells”的理解在药物开发中至关重要。此外，成像技术的进步，如X射线衍射，使科学家能够确定“unit cell”中原子的精确排列。这些信息对于学术研究和工业应用都具有不可估量的价值。通过分析X射线与晶体相互作用时产生的衍射图案，研究人员可以推导出“unit cell”的尺寸和对称性，从而更深入地了解材料的性质。总之，“unit cell”的概念是晶体学和材料科学研究的基础。它作为理解晶体固体中复杂原子排列的构建块。通过探索不同类型的“unit cells”及其影响，科学家和工程师可以创新和改进各种应用的材料。“unit cell”的重要性从理论框架延伸到实际解决方案，突显了其在推动技术进步和增强我们对自然世界理解中的重要性。