CONTENTS

Production, Structure, Properties

Lisovsky A. F. The role of materials science in increasing the efficiency of rock-destruction tool equipped with WC–Co cemented carbide inserts. Review. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

Dolmatov V. Yu. On the possibility of obtaining detonation nanodiamonds that do not contain nitrogen. Influence of covalently bound nitrogen in explosive molecules on nanodiamond yield. . . . . . . . . . . . . . . . . . . . . . . . .

28

Slipchenko K. V., Stratiichuk D. A., Turkevich V. Z., Bilyavyna N. M., Bushlya V. M., Ståhl J.-E. HP-HT sintering of cBN based materials with ZrC and Al. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35

Shulzhenko A. A., Sokolov A. N., Jaworska L., Gargin V. G., Romanko L. A., Kuzmenko E. F., Lutsak E. M. Structure and properties of composite copper–n-layer graphene depending on the method of mixing the components. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

43

Dutka V. A., Maystrenko A. L., Borymskyi O. I., Kulich V. G., Kosenchuk T. O. Modeling of the temperature field in a high-pressure apparatus during sintering of large-sized products based on boron carbide. . . . . . . . . . . .

49

Mechnik V. A., Bondarenko N. A., Kolodnitskyi V. M., Zakiev V. I., Zariev I. M., Ignatovich S. R., Yutskevych S. S. Mechanical and operational properties of Fe-Cu-Ni-Sn materials with different amount of CrB₂ used as matrices for diamond containing composites. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

62

Investigation of Machining Processes

Pashchenko Ye. O., Sokhan’ S. V., Sorochenko G. V., Savchenko D. A., Lazhev-ska O. V., Skorokhod S. V., Mikishchenko O. A. Influence of porosity of tool composite on efficiency of profile diamond grinding of sapphire and zirconium dioxide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

78

Tools, Powders, Pastes

Sheykin S. Ye., Rostotskyi I. Yu., Protsyshyn V. T., Melnichenko V. V., Studenets S. F., Efrosinin D. V., Melnichenko Ya. V. Improving the efficiency of carbide deforming broaches using modified process lubricants. .

93

Letters to the Editor

Davidenko S. A. On the formation of metal interlayers in diamond–(Ti,W)C–WC–Co composite. . . . . . . . .

101