Question

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Is metal a good heat shield?
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Answer 1

Answer:

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For this reason, metals are excellent shields to thermal radiation. If the main way that heat is being transported in a particular system is through thermal radiation, then metals are excellent heat shields. ... Therefore, if a metal is in direct contact with a hot object, it will quickly carry heat away from the object

Answer 2

Explanation:

Is metal a good heat shield?

ans:- That depends on the application. If you’re talking about spacecraft, then metals can be useful as heat shields. The original shuttle designs planned to use nickel superalloys. Dyna-Soar was going to use metal heat shielding. The VentureStar would’ve used metal heat shields. The suborbital Mercury capsules used metallic heat shields. Some of the earliest US nuclear warheads used copper heat shields.

The problem for metal heat shields is that they have lower operating temperature limits than ceramic or ablative heat shields. When the shuttle program was joined by the US Air Force, it’s reentry requirements forced the shuttle to a ceramic heat shield. You’d never use metallic heat shields for something like the Galilean Atmospheric Probe.

Outside of aerospace, metallic heat shields are handy. They’re malleable, cheap, and durable.

hope it helps you

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