The problems of measurement the physical and mechanical properties of carbon materials by the dynamic microindentation method are considered. The description of the gage design for measurements is given. This gage allows creating different initial energy for straining of the material tested. It is shown that the design of the gage and the device allows testing both integral (in a large volume of straining) values of the hardness and the elastic modulus, and values of these characteristics for different structural components of the carbon-carbon composites materials: carbon rods and pitch. The obtained data confirms the possibility of using the accepted elastoplastic model of straining of the materials tested for the determination of the elastic modulus and hardness. The ratio between the dynamic and static characteristics is derived. Samples from such carbon materials as pyrolitic graphite, silicified graphite, graphite PPG, coal-filled PTFE and polyamide have been certified. Using these samples it was shown that the dynamic indentation method allows determining the elastic modulus in the range from 0.5 to 100 GPa and the hardness of indentation in the range from 20 to 550 MPa with an error not exceeding 10 %. It is established that the developed measuring device can be used to establish the presence of defects like "delamination". The influence of the depth of the defect placement on the measured parameters is shown.

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Phenomenological models for describing the process of straining of bitumen-mastic insulation used for protection of the natural gas pipelines from electrochemical corrosion is proposed. The viscoelastic characteristics of insulation at different temperatures and after aging are determined. It is shown that the viscosity and stiffness coefficients determined on the basis of the accepted rheological model of the Maxwell viscoelastic body can be used to assess the degree of degradation of insulation.

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The active application in the practice of testing the indentation methods, in particular to measure the physical and mechanical properties of metals, polymers, biological technologies demands to development techniques for the measurement error estimation. At the same time existing traditional measurement error evaluation system, based on the using of the reference blocks, is not always suitable for use in testing and research laboratories. The aim of this work was development the technique for estimating the indirect measurements error of materials physical and mechanical characteristics that can be applied in practice and based on the existing standards. Checking of the proposed approach using the experimental values of the hardness and elastic modulus obtained during static indentation for various metals.It is shown that since the initial information about the material is an indentation curve representing the dependence of the load versus penetration depth of the indenter into the material tested, then it is better to confirm the metrological characteristics of the indentation measuring devices using the applied force and achieved displacement, but to estimate the accuracy of determining the properties through the error of indirect measurements. The equations for calculating the hardness and modulus of elasticity are derived. It allows to determine the component value most influencing the error magnitude. The calculation of error on the base of the value of boundary of a random and non-exclusive systematic error was carrying out.The advantage of the developed technique is the fact that the measurement of the physical and mechanical characteristics is based on the experimental data and does not require the creation of the additional metrological assurance. The proposed approach seems appropriate to extend for the determination of the measurement error of other characteristics: the yield point, the strain hardening exponent, creep, relaxation, determined by the indentation methods.