Some classes of sintered antifriction materials that form the basis for the development of new materials 
are discussed. Metal- and nonmetal-based materials with high wear resistance, low friction coefficient, 
and maximum lifetime are described. They differ in composition, structure (microheterogeneous, 
macroheterogeneous, layered, fibrous), carrying capacity, and potential for operation under various 
loads, at sliding rates, and in various conditions (high and low temperatures, corrosive and aggressive 
media, i.e., in water, acids, alkalis, melted metals, burning-hot gases, with and without lubrication, 
under high vacuum), in different friction modes (light, medium, heavy, and extremely heavy). The above 
materials are intended for application in the aviation, motorcar, chemical, oil, metallurgical, 
transportation, nuclear, textile, and food industries, in cryogenic, rocket, missile, and turbine 
engineering. Sintered antifriction materials are developed at the Frantsevich Institute for Problems of 
Materials Science, in particular, under the guidance of I. M. Fedorchenko, a famous materials scientist 
and academician.