When solid lubricants are added into metal or ceramic matrix as components for mixed element sintering, the tribological properties depend on the precipitation and dispersion distribution of solid lubricants in the matrix during friction.
However, solid lubricants lose part of their lubricity due to oxidation and burning during sintering at high temperature. At the same time, the inhomogeneity of solid lubricant distribution and its damage to the continuity of matrix will significantly reduce the strength, toughness and wear resistance of composites.
The ideal method is to melt the molten solid lubricant into the microporous through-through preform, forming the infiltration compound high temperature self-lubricating material with network structure through hard matrix phase and soft lubrication phase
Post time: Dec-07-2021