passivation
简明释义
n. [化学] 钝化；钝化处理
英英释义
The process of making a material less reactive or less susceptible to corrosion by forming a protective layer on its surface. | 通过在材料表面形成保护层，使材料的反应性降低或减少其腐蚀的过程。 |
单词用法
钝化层；保护层 |
同义词
反义词
| 激活 | The activation of the enzyme is crucial for the reaction to proceed. | 酶的激活对于反应的进行至关重要。 | |
| 搅动 | 混合物的搅动导致反应速率加快。 |
例句
1.Clustering in AS5 supports buddy replication for SFSBs for improved scalability and passivation for clustered web sessions to control memory usage.
为了改进可伸缩性和集群Web会话的钝化，AS 5中的集群支持SFSB的Buddy复制，以控制内存的使用。
2.In addition, some problems relating to post treatment, passivation process and waste water treatment are also discussed.
最后还研究了镀后的钝化处理工艺及废水处理方面的一些问题。
3.Passivation with nitric acid is required after an oxalic acid rinse.
用草酸冲洗后，必须要用硝酸钝化。
4.Zinc plating chromic acid salt after the passivation, corrosion resistance can improve 6 to 8 times.
锌镀层经铬酸盐钝化之后，耐蚀性可提高6 ~8倍。
5.So galvanization passivation treatment is necessary steps.
故镀锌钝化处理是必不可少的步骤。
6.A passivation procedure can be modified to deal with a variety of soils, surface finishes and weld area conditions.
可修改钝化规程以处理污垢、表面抛光以及焊接区域的各种情况。
7.When an EJB lifecycle event happens, such as passivation, the connector will now log a message to the standard output.
当发生EJB的生命周期事件(比如挂起)时，连接器就会将一条消息输出到标准输出上。
8.Several alternative chemical treatments are defined for passivation of stainless steel parts.
几种可供选择的不锈钢部件化学钝化处理在此有详细规定。
9.Chemical treatments are often used for passivation in various industrial applications.
在各种工业应用中，通常使用化学处理进行钝化。
10.After passivation, the stainless steel components showed significantly improved resistance to rust.
经过钝化处理后，不锈钢部件的抗锈能力显著提高。
11.In electronics, passivation layers are applied to semiconductors to enhance their performance.
在电子学中，钝化层被施加到半导体上以增强其性能。
12.The process of passivation helps to protect the metal surface from corrosion.
这个钝化过程有助于保护金属表面免受腐蚀。
13.The passivation of aluminum surfaces is crucial for preventing oxidation.
铝表面的钝化对于防止氧化至关重要。
作文
In the field of chemistry and materials science, the term passivation refers to a process that renders a surface inactive or less reactive. This is particularly important in preventing corrosion and degradation of metals and alloys. For instance, when a metal is exposed to oxygen, it can form a thin layer of oxide on its surface. This layer acts as a protective barrier, inhibiting further oxidation and protecting the underlying metal from environmental factors. The phenomenon of passivation is critical in various industries, including aerospace, automotive, and construction, where the longevity and durability of materials are paramount.The process of passivation can be achieved through several methods, including chemical treatments, anodization, and electrochemical processes. One common example is the use of chromate solutions to passivate stainless steel. This treatment enhances the formation of a chromium-rich oxide layer that significantly improves the corrosion resistance of the steel. Similarly, aluminum can undergo passivation through anodizing, which increases the thickness of its natural oxide layer, thereby enhancing its resistance to wear and corrosion.Understanding passivation is essential for engineers and scientists who work with materials that are subjected to harsh environments. For instance, in marine applications, metals are constantly exposed to saltwater, which can accelerate corrosion. By employing passivation techniques, these materials can maintain their integrity over time, ensuring safety and reliability in their applications.Moreover, passivation is not limited to metals alone. In the semiconductor industry, the concept also plays a crucial role. During the manufacturing of electronic components, surfaces must be treated to minimize reactivity with contaminants. This is where passivation layers are applied, often using silicon dioxide or silicon nitride, to protect sensitive electronic materials from moisture and other environmental factors.In summary, passivation is a vital process in various scientific and industrial fields, providing protection and enhancing the performance of materials. Its significance cannot be overstated, as it directly impacts the lifespan and functionality of products we rely on daily. Understanding the mechanisms behind passivation allows for better material selection and treatment processes, ultimately leading to improved performance and reduced maintenance costs in numerous applications. As technology continues to evolve, the importance of passivation will likely grow, paving the way for innovations in material science and engineering practices.
在化学和材料科学领域，术语passivation指的是一种使表面不活跃或反应性降低的过程。这在防止金属和合金的腐蚀和降解方面尤为重要。例如，当金属暴露于氧气中时，它可以在其表面形成一层薄薄的氧化物。这层氧化物充当保护屏障，抑制进一步氧化，并保护底层金属免受环境因素的影响。passivation现象在航空航天、汽车和建筑等多个行业中至关重要，这些行业对材料的耐用性和持久性要求极高。passivation过程可以通过多种方法实现，包括化学处理、阳极氧化和电化学过程。一个常见的例子是使用铬酸盐溶液对不锈钢进行钝化。这种处理增强了富铬氧化物层的形成，显著提高了钢的耐腐蚀性。同样，铝也可以通过阳极氧化进行passivation，这增加了其天然氧化层的厚度，从而增强了其耐磨和耐腐蚀性能。理解passivation对在恶劣环境中工作的工程师和科学家至关重要。例如，在海洋应用中，金属不断暴露在盐水中，这会加速腐蚀。通过采用passivation技术，这些材料可以随着时间的推移保持其完整性，从而确保其在应用中的安全性和可靠性。此外，passivation不仅限于金属。在半导体行业，这一概念同样发挥着关键作用。在电子元件的制造过程中，必须对表面进行处理，以最小化与污染物的反应性。在这里，通常会应用passivation层，使用二氧化硅或氮化硅来保护敏感电子材料免受潮湿和其他环境因素的影响。总之，passivation是科学和工业领域中的一个重要过程，提供保护并增强材料的性能。它的重要性不容小觑，因为它直接影响我们日常依赖产品的寿命和功能。理解passivation背后的机制可以更好地选择材料和处理过程，最终在众多应用中提高性能并降低维护成本。随着技术的不断发展，passivation的重要性可能会不断增长，为材料科学和工程实践中的创新铺平道路。
