I saw a video from Everyday Astronaut in which he mentioned electric depositing on a rocket engine. How can thin depositing stand for high pressures?


1 Answer 1


Electrolytic deposition of metals is slow. With a current of 1 ampere, only 329 microgram of copper are deposited in one second. In one hour this current transfers 1.185 gram and in one day of 24 hours 28.44 gram. (valence of copper: 2)

A current density of 5 A/dm^2 delivers about 1 µm per minute, that is 60 µm/h or 1.44 mm per day.

Using high current densities for some days, a layer of some mm may be deposited. So layers suitable for high pressure are possible.

1000 A is needed for an area of 2 square meters and a current density of 5 A/dm^2.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.