DLC has existed for greater than 60 many years. It isn't new in any way. It's a household of carbon products that come with: sp1 bonds – Located at grain boundaries; enhance coating flexibility and ductility. By tuning the ratios of such bonds, DLC coatings might be customized from hard, https://paxtondjnkj.blazingblog.com/28020207/detailed-notes-on-coating-dlc