Which materials can become deformed by heat radiation to the point of leaking?

Materials that are exposed to heat radiation can indeed undergo deformation and compromise their integrity, leading to leaking, depending on their thermal properties and structural characteristics.

Metals can experience heat-related deformation, especially at elevated temperatures, where they may begin to soften and lose their mechanical strength. This can cause them to warp or even flow, potentially resulting in leaks from containers or pipes made of metal.

Plastics are particularly susceptible to heat since many have relatively low melting points compared to metals or glass. When exposed to sufficient heat radiation, they can soften, warp, or melt. This change in state can lead to gaps or openings, resulting in leaks.

Glass, though more resistant to deformation due to its rigid structure, can still be affected by high temperatures. It may not deform in the same way as metals or plastics but can become weakened. If the temperature is high enough, glass can soften and become vulnerable to cracking or breaking, which could also lead to leaking contents.

Thus, all these materials—metals, plastics, and glass—can be affected by heat radiation to the point of leaking, making the selection of all of the above the correct answer.