crystal pulling

简明释义

拉晶法

英英释义

例句

1.The art of crystal pulling has been refined over decades to improve yield and purity.

晶体拉拔的艺术经过几十年的精炼，以提高产量和纯度。

2.During the crystal pulling process, temperature control is essential to avoid defects in the crystal structure.

在晶体拉拔过程中，温度控制对于避免晶体结构缺陷至关重要。

3.In semiconductor manufacturing, crystal pulling is crucial for creating high-quality silicon wafers.

在半导体制造中，晶体拉拔对生产高质量硅片至关重要。

4.The process of crystal pulling involves carefully extracting a single crystal from a molten solution.

晶体拉拔的过程涉及小心地从熔融溶液中提取单个晶体。

5.The researchers used crystal pulling techniques to grow large sapphire crystals for their experiments.

研究人员使用晶体拉拔技术来生长大型蓝宝石晶体以进行实验。

作文

In the world of materials science and engineering, the process of crystal pulling plays a crucial role in the production of high-quality crystals used in various applications. This technique involves the gradual extraction of a crystal from a molten solution, allowing for the formation of a single crystal with a well-defined structure. The importance of crystal pulling cannot be overstated, as it is fundamental in the manufacturing of semiconductors, optical devices, and even in the field of pharmaceuticals.The process begins with the preparation of a suitable material, typically a compound that can be melted to form a liquid phase. Once the material is heated to its melting point, a seed crystal is introduced into the molten solution. This seed crystal acts as a template for the growth of the larger crystal. By carefully controlling the temperature and the rate at which the seed is pulled from the melt, the conditions are optimized for the crystal to grow in a uniform manner.One of the most commonly used methods of crystal pulling is the Czochralski process. This method is widely utilized in the production of silicon crystals for the semiconductor industry. In this process, a seed crystal is dipped into the molten silicon and then slowly pulled upwards while rotating. As the seed is withdrawn, silicon atoms attach themselves to the seed, forming a larger single crystal. The precision and control involved in this technique are vital for ensuring that the resulting crystal has the desired electrical properties.Another method related to crystal pulling is the Bridgman method, which involves cooling a molten material in a controlled manner to encourage crystal growth. In this method, the material is contained in a crucible and moved through a temperature gradient, allowing for the solidification of the material into a crystal structure. Each method has its own advantages and is chosen based on the specific requirements of the application.Understanding the principles behind crystal pulling not only enhances our knowledge of materials science but also paves the way for innovations in technology. For instance, advancements in this field have led to the development of more efficient solar cells, improved LED lights, and better-quality optical components. These innovations have a significant impact on our daily lives, as they contribute to the creation of more sustainable and energy-efficient technologies.Moreover, the significance of crystal pulling extends beyond industrial applications. In the realm of research, scientists are continually exploring new materials and techniques to enhance the properties of crystals. This research may lead to breakthroughs in various fields, including medicine, where high-quality crystals are essential for drug formulation and delivery systems.In conclusion, the process of crystal pulling is a vital technique in the field of materials science, enabling the production of high-quality crystals that are essential for numerous applications. Its influence reaches far and wide, impacting both industrial practices and scientific research. As we continue to advance in this field, the potential for new discoveries and innovations remains vast, making crystal pulling an area of great interest and importance for the future.

在材料科学和工程的世界中，晶体拉拔过程在生产用于各种应用的高质量晶体中发挥着至关重要的作用。这种技术涉及从熔融溶液中逐渐提取晶体，从而形成具有明确结构的单晶。晶体拉拔的重要性不容低估，因为它是半导体、光学设备甚至制药领域制造的基础。该过程始于准备合适的材料，通常是一种可以熔化形成液相的化合物。一旦将材料加热到其熔点，就会将种晶体引入熔融溶液中。这个种晶体充当大晶体生长的模板。通过仔细控制温度和从熔体中拉出的速度，可以优化条件，使晶体均匀生长。晶体拉拔中最常用的方法之一是Czochralski工艺。这种方法广泛用于半导体行业硅晶体的生产。在此过程中，将种晶体浸入熔融硅中，然后缓慢向上拉动，同时旋转。当种晶体被提起时，硅原子附着在种晶体上，形成一个更大的单晶。这一技术中的精密控制对于确保所得到的晶体具有所需的电气特性至关重要。与晶体拉拔相关的另一种方法是Bridgman方法，该方法涉及以受控方式冷却熔融材料以促进晶体生长。在此方法中，材料被包含在坩埚中，并在温度梯度中移动，从而允许材料固化为晶体结构。每种方法都有其自身的优点，具体选择取决于应用的特定要求。理解晶体拉拔背后的原理不仅增强了我们对材料科学的认识，而且为技术创新铺平了道路。例如，该领域的进步导致了更高效的太阳能电池、改进的LED灯和更高质量的光学组件的发展。这些创新对我们的日常生活产生了重大影响，因为它们有助于创造更可持续和节能的技术。此外，晶体拉拔的重要性超越了工业应用。在研究领域，科学家们不断探索新的材料和技术，以增强晶体的特性。这项研究可能会在各个领域带来突破，包括医学，在那里高质量的晶体对药物配方和输送系统至关重要。总之，晶体拉拔过程是材料科学领域的一项重要技术，使得高质量晶体的生产成为可能，这些晶体对无数应用至关重要。其影响深远，影响着工业实践和科学研究。随着我们在这一领域的不断进步，新的发现和创新的潜力仍然巨大，使得晶体拉拔成为未来极具兴趣和重要性的领域。