A method for coating a graphite material with pyrolytic boron nitride and obtained according to this process a coated article

摘要

A process for coating of a graphite with pyrolytic boron nitride, comprising the steps of that (1) the surface of the graphite body by means of a cvi - treatment is compressed, (2) then the surface treated with a reactive gas and (3) thereafter on the treated surface forms a pbn - coating film; and a coated article according to 1, according to this method is obtained.