STUDY OF THE PHYSICOMECHANICAL PROPERTIES OF FULL-SCALE OBJECTS OF CARBON-CERAMIC COMPOSITE MATERIALS OF THE SiC-C SYSTEM (communication 3)

The physical and mechanical properties and their dispersion in carbon-ceramic composite materials of complex shaped objects are studied. Features of their difference in relation to production methods for manufacturing carbon-reinforced plastic preform-precursors are established. For objects of one geometric shape contemporary technology provides steady reproduction of a single level of mechanical properties and a statistically stable level of production residual internal stresses. In fact, the level of material properties for full-scale objects made of carbon-ceramic composite materials provides the possibility of the their operation with a reliability of not less than 0.99 with an external load from 22 to 50% of the original strength level. The limits established are connected with presence in a structure of holes for securing components.