The change in the mass of silicon samples of different initial density, apparent density, ultimate strength, phase composition during nitriding in the nitrogen pressure range of 0.002 - 18 MPa is traced. It is shown that an increase in the reaction rate of nitrogen with silicon occurs up to a nitrogen pressure of 1.5 MPa; at high nitrogen pressures, the growth of the reaction rate slows down. At a firing temperature of 1710 ° C, ceramics with a relative density of 90% and a bending strength of 540 MPa were obtained. Ceramic parts of an internal combustion engine have been manufactured that are operable under the operating conditions of a real engine.
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