How to deposit DLC coatings on the inside of a hollow steel tube?

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H. Cao

I think with PACVD (reactive gas) it should not be a big problem

J. Sobota

Using post magnetron you can deposit coatings into cavities, when the inner diameter of the hollow tube is above 3 cm.

Liuquan Yang

At Wallwork Cambridge, we have the facility to do CVD carbon coating uniformly up to 50 micron for inner diameter.

Alessandro Bertè

For sure GD step (means low temperature plasma with C precursor) is able to deposit even on the inside of holes. But take care of the diameter of it, you can be on the edge of too small dimension to start hollow cathodes effect.