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Samples made of a 1.6 mm thick carbon fiber-reinforced plastic sheet with different curing modes were loaded in the elastic region according to the cantilever bending scheme. Acoustic emission was recorded using an oscilloscope. The microhardness characteristics were used as criteria evaluating the degree of matrix curing which was evaluated on the face surface of the samples and in its cross section at fixed distances from the face surface. Dependences of the frequency, amplitude of acoustic signals, temperature, deflection value and distance to the sample surface on the matrix microhardness were established. The studies showed that the value of matrix microhardness is a relevant criterion evaluating the influence of the mode of carbon fiber-reinforced plastic molding.

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A method is proposed for increasing the erosion resistance of carbon and fiberglass by electrolytic deposition of a wear-resistant nickel coating on polymer composite materials. An assessment of the relative erosion resistance was carried out and the rate of erosional destruction of nickel-plated polymer composite materials was calculated when testing materials on the EI-01 laboratory installation for erosional wear developed by the authors. The effect of plasma treatment (atmospheric pressure plasma) of the surface of carbon and fiberglass on the adhesion strength of the nickel coating to the base, which was determined by the pull-off method using an Elcometer 106 adhesion meter, was studied.