ablative materials

Sacrificial thermal protection

Ablative materials are substances designed to erode, melt, or vaporize in a controlled way, carrying heat away as they're consumed.

They protect spacecraft heat shields during atmospheric reentry—the material sacrifices itself so the structure beneath stays cool.

The same principle appears in rocket nozzles and fire protection systems.

The capsule's ablative coating charred but held.

Related

charring · sacrificial · carbon fiber · energy absorption · endothermic · space capsules · sublimation · mass loss · burn up · heat sink · launch vehicles · thermal barriers · vaporization · spacecraft · melting · thermal protection · space shuttle · ceramic

Categories
Opposites
thermal protection mechanism

ablative materialsheat sinks

Components that transfer warmth away

ceramic tiles · thermal blankets · superalloys

material permanence under stress

ablative materialsdurable materials

Substances resisting wear and decay

Family

material, ablation

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Used worldwide · Timeless · Concrete · Rated G