passivated

简明释义

英[/ˈpæsɪveɪtɪd/]美[/ˈpæsɪveɪtɪd/]

adj. 钝化的

v. 钝化（passivate 的过去分词）

英英释义

单词用法

同义词

反义词

例句

1.The curvature of crack tip increased after crack arresting, so the crack tip was passivated.

止裂后的裂纹尖端变得十分圆整。达到了钝化止裂的目的。

2.The introduced oxygen in the passivated procedure reacts with the catalyst surface to form the thin oxide layer.

而在表面钝化过程中引入的氧则在催化剂表面形成氧化薄层。

3.Two-dimensional finite element modeling was used to simulate the thermal stress in unpassivated and passivated aluminum thin film interconnects.

对有钝化层与无钝化层的铝互连线的热应力进行了数值模拟，并建立起互连线的二维有限元模型。

4.The results of electrochemical test indicated that all the tested alloys may be passivated rapidly.

电化学实验表明，所有实验合金均较快进入钝态；

5.When the connector is passivated and the application server writes it to disk, an unauthorized party could go into the temporary file and retrieve the credentials.

但是，将解密后的 AuthBundle 存储到实例变量（_credentials）中，则是个错误的做法，在连接器被挂起以及应用服务器将其写入磁盘的过程中，未经身份验证的人就可能进入临时文件中检索凭证。

6.For optimum corrosion resistance, surfaces must be free of scale and foreign particles and finished parts should be passivated.

为了得到最好的抗腐蚀性能，表面应无划痕和其他物质，加工完的零件需做钝化处理。

7.The devices were passivated by the thin film of Photo-CVD silicon nitride, we found that the reliability of the devices was to be raised.

采用光化学气相淀积(光cvd)氮化硅薄膜进行器件的表面钝化，使整个器件提高了可靠性。

8.The metal surface was passivated to prevent corrosion.

金属表面被钝化以防止腐蚀。

9.After the treatment, the stainless steel was effectively passivated to enhance its resistance to rust.

经过处理后，不锈钢有效地被钝化，以增强其抗锈能力。

10.The process of passivating aluminum helps to create a protective oxide layer.

对铝进行钝化的过程有助于形成保护性氧化层。

11.To ensure longevity, the components were passivated before assembly.

为了确保耐用性，组件在组装前被钝化。

12.The passivated surface showed significantly less wear over time.

经过钝化的表面随着时间的推移显示出明显较少的磨损。

作文

In the field of materials science and engineering, the term passivated refers to a process that enhances the corrosion resistance of metals by forming a protective layer on their surface. This layer can be created through various methods, including chemical treatments, electrochemical processes, or thermal oxidation. Understanding the concept of passivated materials is crucial for ensuring the longevity and durability of components used in harsh environments, such as aerospace, automotive, and marine applications. The significance of passivated surfaces cannot be overstated. For instance, stainless steel, which is often used in construction and manufacturing, relies on its passivated layer to prevent rusting and degradation. When stainless steel is exposed to oxygen, it forms a thin oxide layer that protects the underlying metal from further corrosion. This naturally occurring process is what gives stainless steel its name, but it can be enhanced through intentional passivated treatments that increase the thickness and effectiveness of this protective layer. One common method of achieving a passivated state is through acid cleaning followed by passivation with nitric acid. This process removes free iron and other contaminants from the surface, allowing the formation of a more uniform and effective oxide layer. The result is a material that is significantly more resistant to pitting and crevice corrosion, which are common issues in environments where chloride ions are present, such as in saltwater or de-icing agents. However, it is essential to recognize that not all metals can be effectively passivated. Metals like aluminum and titanium also form protective oxide layers, but the processes involved in their passivated states differ from those of stainless steel. For example, aluminum naturally forms a thin oxide layer when exposed to air, but this layer can be compromised if the metal is scratched or damaged. To enhance its corrosion resistance, aluminum is often anodized, a process that thickens the oxide layer and improves its protective capabilities. The importance of passivated materials extends beyond just preventing corrosion. In many applications, the electrical properties of the materials can also be affected by the passivated layer. For example, in semiconductor manufacturing, the surfaces of silicon wafers must be passivated to prevent unwanted reactions during processing. A well-passivated surface ensures that the electrical characteristics remain stable, which is vital for the performance of electronic devices. In conclusion, the concept of passivated materials plays a critical role in various industries by enhancing the durability and performance of metals and alloys. By understanding and applying the principles of passivated surfaces, engineers and manufacturers can design products that withstand challenging conditions and provide reliable service over time. As technology advances, new methods for achieving and improving passivated states will continue to evolve, leading to even greater innovations in material science and engineering.

在材料科学和工程领域，术语passivated指的是一种通过在金属表面形成保护层来增强其耐腐蚀性的过程。这个保护层可以通过多种方法生成，包括化学处理、电化学过程或热氧化。理解passivated材料的概念对于确保在恶劣环境中使用的组件的长寿和耐用性至关重要，例如航空航天、汽车和海洋应用。 passivated表面的重要性不容小觑。例如，不锈钢常用于建筑和制造，它依赖于其passivated层来防止生锈和降解。当不锈钢暴露于氧气时，它会形成一层薄薄的氧化物保护底下的金属，防止进一步的腐蚀。这个自然发生的过程就是不锈钢名称的由来，但通过故意的passivated处理，可以增强这种保护层的厚度和有效性。 实现passivated状态的一种常见方法是通过酸清洗，然后用硝酸进行钝化。这个过程去除了表面的游离铁和其他污染物，使得形成更均匀和有效的氧化层成为可能。结果是材料显著增强了对点蚀和缝隙腐蚀的抵抗力，这些都是在氯离子存在的环境中常见的问题，例如盐水或除冰剂。 然而，必须认识到，并非所有金属都能有效地被passivated。铝和钛等金属也会形成保护性氧化层，但它们的passivated状态所涉及的过程与不锈钢有所不同。例如，铝在暴露于空气时自然形成一层薄薄的氧化层，但如果金属被划伤或损坏，这一层可能会受到损害。为了增强其耐腐蚀性，铝通常会经过阳极氧化处理，这一过程加厚了氧化层，提高了其保护能力。 passivated材料的重要性不仅仅体现在防止腐蚀上。在许多应用中，材料的电气性能也可能受到passivated层的影响。例如，在半导体制造中，硅晶圆的表面必须被passivated以防止在加工过程中发生不必要的反应。良好的passivated表面确保电气特性保持稳定，这对电子设备的性能至关重要。 总之，passivated材料的概念在各个行业中发挥着关键作用，通过增强金属和合金的耐用性和性能。通过理解和应用passivated表面的原理，工程师和制造商可以设计出能够承受挑战性条件并提供可靠服务的产品。随着技术的进步，实现和改善passivated状态的新方法将继续发展，从而推动材料科学和工程领域的更大创新。