CONTENTS

Production, Structure, Properties

Kushch V. I., Kulych V. G. Theoretical estimates of packing density of two–component powder systems: review and comparative analysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

Kvasnytsya V. M. Synthetic НРНТ diamonds as pseudo-indicators of diamond-bearing rocks. . . . . . . . . . . . . . . . .

19

Yin Xiangxiang, Mo Peicheng. Effect of sintering pressure on the properties of PcBN carbide inserts. . . . . . . . . .

28

Han Danhui, Liu Junlong, Peng Chong, Liang Baoyan. Construction of diamond/graphene composite structure via a low-temperature heat treatment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

37

Chasnyk V. I., Chasnyk D. V., Kaidash O. M. Activation energy of electrical conductivity and microwave radiation absorption characteristics in the AlN–SiC composite. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

48

Dovhal A. H., Pryimak L. B., Varijukhno V. V., Biliakovych O. M. Effect of steel millings on structure and mechanical properties of composite materials of SiC–Al₂O₃ components system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

56

Investigation of Machining Processes

Filatov Yu. D. Quantum mechanism of optical glass polishing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

67

Tools, Powders, Pastes

Ratov B. Т., Mechnik V. A., Gevorkyan E. S., Bondarenko N. A., Kolodnitskyi V. M., Akhmetova N. S., Korostyshevskyi D. L., Bayamirova R. U. A study of the wear resistance of impregnated crowns based on composites of the C_diamond–(WC–Co)–ZrO₂ system in granite drilling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

80

Lavrinenko V. I., Poltoratskyi V. G., Pasichnyi O. O., Solod V. Yu. Performance indicators of the grinder tools with cubic boron nitride grains with combined wear-resistant coatings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

91

Letters to the Editor

Solozhenko V. L. On melting of boron arsenide under pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

98

Stratiichuk D. A., Devin L. M., Richev S. V., Turkevich V. Z., Rumiantseva Y. Y. Dynamic tensile strength of ceramic-matrix composites of the BL group, which are obtained in the cBN–carbide–Al systems. . . . . . . . . . . . . . . . .

101