zone refining

简明释义

区域提纯

英英释义

例句

1.Researchers are exploring new techniques to enhance the efficiency of zone refining in crystal growth.

研究人员正在探索新技术，以提高晶体生长中区熔炼的效率。

2.The process of zone refining is essential for producing high-purity silicon for solar cells.

对于生产高纯度硅以用于太阳能电池，区熔炼过程至关重要。

3.The semiconductor industry heavily relies on zone refining to achieve the desired purity levels.

半导体行业在很大程度上依赖于区熔炼来达到所需的纯度水平。

4.In metallurgy, zone refining is used to improve the quality of metals by removing impurities.

在冶金学中，区熔炼用于通过去除杂质来提高金属的质量。

5.One of the main advantages of zone refining is its ability to concentrate impurities in a specific area.

区熔炼的主要优点之一是能够将杂质集中在特定区域。

作文

Zone refining is a highly effective method used in materials science and engineering to purify solid materials. This technique is particularly valuable in the production of semiconductors, metals, and other crystalline substances. The process involves melting a small region of a solid material using a localized heat source, typically an induction heater or a resistance heater. As the molten zone moves along the solid material, impurities are driven into the liquid phase, allowing for a purer solid to crystallize behind it. This method is especially important in the manufacture of high-purity silicon for solar cells and microelectronics. The significance of zone refining (区熔法) lies in its ability to achieve extremely high levels of purity, often exceeding 99.9999%. In the semiconductor industry, even minute levels of impurities can significantly affect the electrical properties of materials. Thus, the use of zone refining (区熔法) ensures that the final product meets the stringent requirements necessary for advanced technological applications. One of the key advantages of zone refining (区熔法) is its efficiency. Unlike other purification methods that may require multiple steps or extensive chemical treatments, zone refining (区熔法) can be performed in a single pass. This not only saves time but also reduces the risk of contamination that can occur during handling and processing. Additionally, the method is adaptable; it can be applied to a variety of materials, including metals like germanium and gallium arsenide, which are crucial in electronics and optoelectronics. Moreover, the principles behind zone refining (区熔法) can be understood through the concepts of phase diagrams and thermodynamics. When the temperature of the material exceeds its melting point, it enters a liquid state. As the molten zone travels through the solid, the distribution of solute atoms changes, leading to a concentration gradient. Impurities tend to concentrate in the liquid phase due to their lower melting points compared to the desired material. This phenomenon is known as segregation, and it is the basis for the effectiveness of zone refining (区熔法). In conclusion, zone refining (区熔法) is an essential technique in the field of material purification. Its ability to produce high-purity materials makes it indispensable in industries such as electronics, where precision and quality are paramount. By understanding the mechanisms involved in zone refining (区熔法), researchers and engineers can continue to innovate and improve the production processes for various high-tech materials. As technology advances, the importance of maintaining purity in materials will only grow, making zone refining (区熔法) a critical area of study and application for the future.

区熔法是一种在材料科学和工程中用于纯化固体材料的高效方法。这项技术在半导体、金属和其他晶体物质的生产中尤其有价值。该过程涉及使用局部热源（通常是感应加热器或电阻加热器）熔化固体材料的小区域。当熔融区沿着固体材料移动时，杂质被驱入液相，从而使更纯净的固体在其后结晶。此方法在制造高纯度硅用于太阳能电池和微电子产品中尤为重要。区熔法的意义在于其能够实现极高的纯度水平，通常超过99.9999%。在半导体行业，即使是微小的杂质含量也会显著影响材料的电学性质。因此，采用区熔法可以确保最终产品符合先进技术应用所需的严格要求。区熔法的一个主要优点是其效率。与其他可能需要多个步骤或广泛化学处理的纯化方法不同，区熔法可以在一次过程中完成。这不仅节省了时间，还减少了在处理和加工过程中可能发生的污染风险。此外，该方法具有适应性；它可以应用于多种材料，包括德国ium和砷化镓等金属，这些金属在电子和光电子领域中至关重要。此外，区熔法背后的原理可以通过相图和热力学的概念来理解。当材料的温度超过其熔点时，它进入液态。随着熔融区穿过固体，溶质原子的分布发生变化，导致浓度梯度。杂质倾向于集中在液相中，因为它们的熔点低于所需材料。这种现象称为分配，是区熔法有效性的基础。总之，区熔法是材料纯化领域的一项重要技术。其生产高纯度材料的能力使其在电子等对精度和质量要求极高的行业中不可或缺。通过理解区熔法中涉及的机制，研究人员和工程师可以继续创新和改善各种高科技材料的生产过程。随着技术的进步，保持材料纯度的重要性只会增加，使得区熔法成为未来研究和应用的关键领域。