| 释义 |
ablator Astronautics.|əˈbleɪtə(r)|
[f. ablate v. + -or.]
An outer layer, as in a rocket engine, designed to ablate readily when heated and so reduce the transfer of heat to the underlying material.
1963L. E. Hooks in AIAA Jrnl. I. 2640/2 The noses of superorbital re-entry vehicles will receive significant radiant heating pulses during deceleration. Designers..must prevent this energy..penetrating...This may be done by using opaque heat shields, charring ablators, or ablators that have opaque vapor states. 1970N. Armstrong et al. First on Moon xiii. 307 Thirty-four pounds had been trimmed from the engine's weight by replacing the thrust chamber's asbestos lining with a light, glass-reinforced ablator. 1983Aviation Week & Space Technol. 5 Dec. 22/3 The carbon phenolic ablator in the throat of one of the Mission 8 boosters was within 9 sec. of burning through. |