CONTENTS

Production, Structure, Properties

Kvasnytsya V. M. Rare diamond microcrystals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

Stratiіchuk D. A., Slipchenko K. V., Turkevich V. Z., Belyavina N. M., Bushlya V. M. , Ståhl J.-E. Sintering of superhard cBN-based materials with Ti₄WC₅. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11

Mukhanov V. A., Courac A., Solozhenko V. L. The effect of doping on the lattice parameter and properties of cubic boron nitride. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18

Kosminska Yu. O., Kornyushchenko G. S., Gannych Yu. V., Perekrestov V. I. Obtaining and physical properties of the coatings multicomponent systems based on W, Ta, Hf, Ti, Mo, Cr, Al and C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

30

Wang Liangbiao, Cheng Qinglin, Zhao Dejian, Liu Weiqiao, Yang Tinghai, Lu Juanjuan, Liu Weiqiao, Zhang Kailong, Gong Huaxu, Qin Hengfei. Solid-state synthesis and characterization of hafnium diboride nanoparticles. .

39

Gao Guangjin, Li Shangsheng, Hu Meihua, Zhou Xiaolin, Luo Xiangyi, Su Taichao, Guo Mingming, Wang Junzhuo, You Yue. Formation of crystal stock in the process of the plate shape for type Ib large synthetic diamond single crystals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

46

Investigation of Machining Processes

Devin L. M., Stakhniv M. E. Axial force when drilling carbon plastics by using drills from diamond-carbide plates (PCD). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

57

Lavrinenko V. І., Solod V. Yu., Kashynskyi I. S., Dobroskok V. L. Determination of oxides intended for surface modification of diamond grains by their functional characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

66

Tools, Powders, Pastes

Manokhin A. S., Klimenko S. A., Beresnev V. M., Stolbovoy V. A., Klimenko S. An., Mel’niichuk Yu. A., Naidenko A. G., Ryzhov Yu. E., Depu Li, Hongshun Wang. Wear intensity of the PcBN tools with nanolayered protective coating.

74

Sokhan’ S. V., Voznyy V. V., Redkin A. S., Sorochenko V. H., Zubaniev E. M., Hamaniuk M. P. Wear of a diamond wheel during grinding of ceramic balls from silicon carbide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

85

Letters to the Editor

Savchenko D. O., Pashchenko E. O., Kaidash O. M., Kukharenko S. A., Buriachek O. V., Rumiantsevа Yu. Yu., Skorokhod S. V., Romanenko Y. M. Mechanism of synthesis and formation of the hybrid oligomers structure based on complex compounds of oligophenylenes with metals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 

99