CONTENTS

of Journal of Superhard materials № 5, 2008

CONTENTS
Production, Structure, Properties
Oleinik G.S. and Lyashenko V. I. Mechanism of the rBN ® hBN transformation in nano– and microtubes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	3
Shul’zhenko A. A., Nozhkina A. V., Gargin V. G., Bogdanov R. K., Zakora A. P., Bogatyreva G. P., Petasyuk G. A., Loshak M. G., Aleksandrova L. I., Rusinova N. A., Gvyazdovskaya V. L., and Shamraeva V. S. Comparative physico-mechanical characteristics of micron powders of synthetic and natural diamonds and their based-polycrystalline composite materials. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	7
Sushchev V. G., Dolmatov V. Yu., Marchukov V. A., and Veretennikova M. V. Principles of the chemical purification of detonation diamond-containing mixture by nitric acid. . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	16
Bogatyreva G. P., Marinich M. A., Zabuga V. Ya., Tsapyuk G. G., Panova A. N., and Bazalii G. A. Effect of the modification of nanodispersed diamond surface on thermostability of them. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	26
Sivkov A. A., Naiden E. P., and Gerasimov D. Yu. Direct dynamic synthesis of nanodispersed titanium nitride in a high-speed pulse electroerosion plasma jet. . . . .	33
Bezhenar M. P., Bozhko S. A., Garbuz T. A., Bilyavyna N. M., and Markiv V. Ya. Titanium/aluminum diborides in composites produced in the cBN–TiC–Al system by reaction sintering at high pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	40
Lisovskii A. F. On the filling of a pore in a solid–liquid nanodispersed system. . . . .	51
Investigation of Machining Processes
Kravchenko Yu. G., Semykin A. A., and Yaroshik A. Ya. Optimization of the parameters of turning cast irons of high hardness by PCBN inserts. . . . . . . . . . . . . .	59
Tools, Powders, Pastes
Dutka V. A. Prediction of strengthening of the surface of carbide cutter holder as a result of quenching after induction soldering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	66
Eroshin S. S. Extension of technological potentialities of machines and devices having annular working elements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	79
Kopeikina M. Yu., Klimenko S. A., Mel’niichuk Yu. A., and Beresnev V. M. Efficiency of cutting tools equipped with cBN-based polycrystalline superhard materials having vacuum-plasma coating. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	87
Jubilees, Dates
To the 90th Anniversary of the National Academy of Sciences of Ukraine. A brief historical outline of the V. N. Bakul Institute for Superhard Materials. . . . . . . . . . .	98