Application of the models of mechanics for the evaluation of the microstructural parameters of alloys with elevated wear resistance

We show the possibility of application of the approaches of mechanics to the determination of the relative fractions and sizes of phases in antifriction alloys with elevated wear resistance. It is demonstrated that the wear resistance of B16 babbitt increases if its microstructure contains an Sn Sb hardening phase whose size is equal to 53 μm.     

Technology for machining high-refractory ceramic parts based on silicon nitride

The results of the experimental study of mechanical treatment of highly refractory ceramic parts made of various compositions based on silicon nitride are described. The revealed regularities of the surface layer and defect formation have been used to develop a two-stage process for working these parts, which ensures high machining efficiency and a minimum level of surface layer defects. The proposed technology has been used in making cutting plates from nitride ceramics, which has increased their average resistance by 15–20%. __________ Translated from Novye Ogneupory, No. 8, pp. 19–24, August, 2006.     

New stage in the metrological provision for sensors

It is shown that traditional methods of metrological provision for critical sensors do not provide the required level of confidence for measurement results and economic efficiency. The desirability of changing to automatic monitoring of the metrological precision of sensors during operation is substantiated and requirements for the metrological procedures that are necessary are determined. __________ Translated from Izmeritel’naya Tekhnika, No. 3. pp. 69–73, March, 2007.     

Determination of Kinetic Characteristics of the Process of Drying of Forest Combustibles

An algorithm for determining kinetic characteristics of the process of drying of forest combustibles by the modified Hertz–Knudsen law in isothermal heating has been suggested and tested. It is shown that this algorithm allows obtaining of a stable solution of the inverse kinetic problem of onedimensional determination of the heat of evaporation and a preexponential factor with an error proportional to the error of initial experimental data. Kinetic characteristics of the process of drying of certain forest combustibles are determined by the experimental data known from the literature.