ionbonds bernex plasma-assisted chemical vapor deposition (pacvd or pecvd) coating equipment allows for the deposition of extremely smooth amorphous diamond like carbon (adlc) coatings at temperatures under 200 c. adlc c......ionbonds bernex plasma-assisted chemical vapor deposition (pacvd or pecvd) coating equipment allows for the deposition of extremely smooth amorphous diamond like carbon (adlc) coatings at temperatures under 200 c. adlc coatings have an extremely low coefficient of friction, are non-conductive and chemically inert. Primary applications include engine components and machine parts.