Search Results - "Petrusha, I A"

Mechanical properties of polycrystalline cBN obtained from pyrolytic gBN by direct transformation technique by Dub, S. N., Petrusha, I. A.

“…High-purity polycrystalline cBN (pcBN) has been obtained from bulk pyrolytic graphite-like BN at a pressure of about 8 GPa and temperatures of 2500 and 2800 K…”
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Diamond composites of high thermal conductivity and low dielectric loss tangent by Osipov, A.S., Klimczyk, P., Rutkowski, P., Melniychuk, Y.A., Romanko, L.O., Podsiadlo, M., Petrusha, I.A., Jaworska, L.

“…•Diamond-CaMg(CO3)2 and diamond-CaCO3 composites sintered by HP-HT method.•Materials developed with high heat conducting and dielectric properties.•Materials…”
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The Influence of VC–Al Additive on Wear Resistance of cBN-based Composites by Slipchenko, K. V., Petrusha, I. A., Stratiichuk, D. A., Turkevych, V. Z.

“…The paper addresses wear resistance of cBN–VC–Al cutting tool material under the conditions of high-speed continuous turning of AISI 316L stainless steel…”
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Crystallization of diamond on the surface of cBN ceramics at high pressures and temperatures by Petrusha, I.A., Smirnova, T.I., Osipov, A.S., Britun, V.F.

“…Diamond crystallization in the Al–C system under high static pressures and temperatures has been investigated on the surface of cBN ceramics. High-temperature…”
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Theoretical shear strength and the onset of plasticity in nanodeformation of cubic boron nitride by Dub, S. N., Petrusha, I. A., Bushlya, V. M., Taniguchi, T., Belous, V. A., Tolmachova, G. N., Andreev, A. V.

“…The nanoindentation in the continuous stiffness measurement mode was used to investigate the onset of plasticity at the nanodeformation of cubic boron nitride…”
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Electrical Resistance of an Islet Gold Film on the Surface of Thermobarically Sintered cBN Ceramics by Fesenko, I. P., Viduta, L. V., Chasnyk, D. V., Nechytaylo, V. B., Petrusha, I. A., Kaidash, O. M., Rumyantseva, Yu. Yu, Smokvyna, V. V., Chasnyk, V. I., Garashchenko, V. V., Tuz, Yu. M., Rukin, V. P., Muliavko, N. O.

“…The electrophysical properties of an islet gold film on the surface of cubic boron nitride are considered. The calculated electrical resistance values are…”
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An approach to Y2O3:Eu3+ optical nanostructured ceramics by Yavetskiy, R P, Baumer, V N, Dulina, N A, Pazura, Yu I, Petrusha, I A, Tkach, V N, Tolmachev, A V, Turkevich, V Z

“…Y2O3:Eu3+ (1 at%) translucent nanostructured ceramics with a total forward transmission of about 70% of the theoretical limit were obtained by the…”
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Structure of Island Gold Films on Thermobarically Sintered Cubic Boron Nitride by Fesenko, I. P., Viduta, L. V., Chasnik, D. V., Petrusha, I. A., Rumyantseva, Yu. Yu, Tkach, V. M., Chasnik, V. I., Turkevich, V. Z., Nechitaylo, V. B., Kaydash, O. M., Garashchenko, V. V.

“…The structure of island gold films on the surface of cubic boron nitride is reported. The average size of islands, the nature of their distribution on the…”
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Transformation-assisted consolidation of Y2O3:Eu3+ nanospheres as a concept to optical nanograined ceramics by Yavetskiy, R.P., Baumer, V.N., Danylenko, M.I., Doroshenko, A.G., Ogorodnikov, I.N., Petrusha, I.А., Tolmachev, А.V., Turkevich, V.Z.

“…A concept is proposed to produce Y2O3:Eu3+ optical nanograined ceramics by the transformation-assisted consolidation of nanospheres under 8GPa pressure. The…”
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Features of a cBN-to-graphite-like BN phase transformation under pressure by Petrusha, I.A

“…Phase transformations of cubic boron nitride to graphite-like forms (cBN→gBN) have been studied within the 1670–2970 K temperature range and at high pressures,…”
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The crystallographic texture of graphite-like and diamond-like boron nitride bulk materials by SOLOZHENKO, V. L, PETRUSHA, I. A, ENGLER, O, BINGERT, J. F

“…X-ray powder diffraction and quantitative texture analysis have been employed to study the crystallographic relation of parent and product phases in direct…”
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Wurtzitic boron nitride thermal stability and transformation into the rhombohedral boron nitride modification when heated by Britun, V.F., Kurdyumov, A.V., Petrusha, I.A.

“…Samples of wurtzitic boron nitride (wBN) were obtained from the rhombohedral BN (rBN) modification as a result of phase transformation under high pressures…”
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HP-HT sintering, microstructure, and properties of B6O- and TiC-containing composites based on cBN by Turkevych, D. V., Bushlya, V., Ståhl, J. -E., Petrusha, I. A., Belyavina, N. N., Turkevich, V. Z.

“…The article presents a study of the potential for the use of B 6 O superhard boron suboxide as a binder in composite materials with a low cBN content…”
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Structural mechanisms of rhombohedral BN transformations into diamond-like phases by Kurdyumov, A.V., Britun, V.F., Petrusha, I.A.

“…Structural features and mechanisms of transformation of graphite-like rhombohedral boron nitride modification (rBN) into the diamond-like wurtzite (wBN) and…”
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Structural features of boron nitride dense phase formation from rhombohedral modification under high static pressure by Britun, V F, Kurdyumov, A V, Petrusha, I A

“…The real structure of boron nitride (BN) polycrystals after high-pressure treatment was investigated by x-ray and transmission electron microscopy methods…”
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Y3Al5O12 translucent nanostructured ceramics—Obtaining and optical properties by Yavetskiy, R P, Vovk, E A, Doroshenko, A G, Danylenko, M I, Lopin, A V, Petrusha, L A, Tkachenko, V F, Tolmachev, A V, Turkevich, V Z

“…Y3Al5O12 nanostructured ceramics with total transmittance of 63% at lambda =1064nm has been obtained by low-temperature high-pressure sintering. According to…”
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Effect of grain size on the strength of Y3Al5O12 optical ceramics by Dolzhenkova, E. F., Belous, V. A., Doroshenko, A. G., Petrusha, I. A., Tkachenko, V. F., Tolmacheva, G. N., Turkevich, V. Z., Yavetskii, R. P.

“…Using micro- and nanoindentation techniques, we have studied the mechanical properties of Y 3 Al 5 O 12 optical ceramics: coarse-grained, prepared by vacuum…”
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On chemical and diffusional interactions between PCBN and superalloy Inconel 718: Imitational experiments by Bushlya, V., Bjerke, A., Turkevich, V.Z., Lenrick, F., Petrusha, I.A., Cherednichenko, K.A., Ståhl, J.-E.

“…During a metal cutting process, chemical wear can become the dominant mechanism of tool degradation under the high temperatures and contact pressures that…”
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Effect of the Concentration of Components and the Size of Heaters on the Thermal State of a High-Pressure Cell to Study the Solubility of Gallium Nitride in Iron by Liudvichenko, O. P., Lyeshchuk, O. O., Petrusha, І. A.

“…We considered the existing technologies for obtaining crystals of gallium nitride. The finite element method was used to create a model of the thermal state of…”
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Diamond-CaCO3 and diamond-Li2CO3 materials sintered using the HPHT method by Osipov, A.S., Klimczyk, P., Cygan, S., Melniychuk, Yu.A., Petrusha, I.A., Jaworska, L., Bykov, A.I.

“…Diamond-CaCO3 and diamond-Li2CO3 materials were sintered at high pressure (8.0GPa) and high temperature (2300°C) for 3min using the infiltration technique. The…”
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