újrapasszivált

The term "újrapasszivált" is a Hungarian adjective that translates to "re-passivated" or "re-activated" in English. It is primarily used in technical contexts, particularly in materials science and chemistry, to describe a process where a material's passive layer is restored or re-established.

Passivation is a surface treatment process that reduces the chemical reactivity of a material, typically a metal. This is often achieved by forming a thin, protective oxide layer on the surface. Over time, or due to exposure to certain environments or chemical agents, this passive layer can be damaged or removed, leading to increased reactivity.

The "újrapasszivált" state indicates that this passive layer has been intentionally or unintentionally regenerated. For example, in the context of stainless steel, which naturally passivates, an "újrapasszivált" surface would mean that its corrosion resistance has been restored after it was compromised. This can be achieved through various methods, such as chemical treatments or electrochemical processes.

The concept is important for maintaining the integrity and performance of materials in applications where corrosion resistance is critical. Understanding when and how a material has been "újrapasszivált" is essential for predicting its behavior and ensuring its longevity in its intended use.