... self-lubrication resistance to abrasion,corrosion, oxidation Si3N4 silicon nitride powder The Si3N4 other name: Silicon Nitride powder, gray, ... It occupies from 95% --99.99%,and size from block to12,80,325, 1000 mesh, The products of different ... shock, no crack. Good interface compatibilitySelf-cubrication 2.Si3N4 silicon nitride powder chemical composition Phase compositionNFeAlCSPα/βphase composition ...