In materials science, what is the function of the term "spacer"?

The term "spacer" in materials science primarily refers to a component designed to maintain distance between two objects or surfaces. This function is crucial in various applications where precise spacing is important, such as in assembly, structural design, or when accommodating thermal expansion and contraction. By keeping components at a fixed distance, spacers help to ensure proper alignment, functionality, and mechanical integrity of structures.

In contrast to other functions that might be associated with different components, such as vibration absorption or sealing, spacers specifically focus on maintaining the physical separation required for the intended design. This allows for efficient operation and longevity of the assembled parts, ensuring that they do not interfere with one another during use.