NEW SELF-LUBRICATING ANTIFRICTION MATERIALS BASED ON TITANIUM NITRIDE

摘要

Tribological properties of powder composite materials of the skeletal and matrix types are studie under conditions of dry friction with rates up to 10 m/sec in air in pair with steels. Titanium nitride is used in order to obtain skeletons, and the matrix is polytetrafluoroethylene (PTFE). It is established that the tribological properties depend on the type of structure. In level of wear resistance materials of the skeletal type surpass by a factor of 1.5 the original compact materials, and filled PTFE by a factor of eight to nine. Use of PTFE makes it possible to improve markedly the tribological properties of composite materials based on titanium nitride and to reduce significantly (up to 40 percent) the weight of friction assemblies.