CHEMICAL TECHNOLOGY (inorganic and organic substances. Theoretical fundamentals)

STUDYING OF POLYCRYSTALS STRUCTURE BASED ON DIAMOND MICROPOWDERS AFTER MODIFYING BY CARBIDE-FORMING ELEMENTS

Results of thermobaric processing of diamond micropowders after their modifying by silicon, titan and tungsten are presented. The composite diamond micropowders such as di-amond – silicon, diamond – titan and diamond – tungsten are received after the preliminary annealing in the protective atmosphere. As a result of agglomeration of the modified dia-mond micropowders under the conditions of high pressures and temperatures the carbides formation of the refractory compounds promoting sintering of diamond grains takes place.

Key words: diamond micropowders, polycrystalline super hard material, modification, high pres-sure and temperatures, sintering, carbides

REFERENCES
1. Shul’zhenko A.A., Klimenko S.A. Instrumentalnyi svet. 1999. N 4. P. 14 – 16 (in Russian).
2. Instrument from super hard materials. / Ed. N.V. Novikov. M.: Mashinostroenie. 2005. 555 p. (in Russian).
3. Shul’zhenko A.A., Voronin G.A., Osipov A.S. RF Patent № 1729086. (in Russian).

2016, Т. 59, № 8, Стр. 60-63

OBTAINING DIAMOND-METAL COMPOSITES BY MEANS OF BRAZES CONTAINING REFRACTORY FILLERS

The interaction of Sn-Cu-Co-W brazes containing cobalt and tungsten powder as re-fractory fillers with the synthetic diamonds AS150 is studied. It was found, that addition into braze the cobalt powder provides the wetting of diamonds at brazing and their strong fixation in metal matrix of composite.

Key words: diamond, brazing, composite material, tungsten, cobalt, carbides

REFERENCES
1. Trenker A., Seidemann H. Industrial Diamond Review. 2002. V. 62. N 1. P. 49–51.
2. Lee C.H., Ham J.O., Song M.S., Lee C.H. Materials transactions. 2007. V. 48. N 4. P. 889-891.
3. Sokolov E.G., Kozachenko A.D. RF Patient N 2457935. 2010. Method of making abrasive tool from superhard materials.
4. Sokolov E.G., Artemyev V.P., Kozachenko A.D. Tekhno-logiya Metallov. 2012. N 12. P. 35-37 (in Russian).
5. Sokolov E.G. Tekhnologiya Metallov. 2015. N 6. P. 28-32 (in Russian).

2016, Т. 59, № 8, Стр. 56-59

SELECTIVE GROWTH OF THIN CARBON FILMS ON DIELECTRICS SUBSTRATES

The method of control of the quality of thin carbon films obtained by ethanol vapor py-rolysis on the surface of dielectric substrates which was preliminary irradiated by e-beam is described. The influence of the exposure doses on the structural perfection of the obtained films was studied.

Key words: graphene-like films, chemical vapor deposition (CVD), electron beam (e-beam)

REFERENCES
1. Zhang L., Shi Z., Wang Y., Yang R., Shi D., Zhang G. Nano Res. 2011. V. 4. N 3. P. 315-321. DOI: 10.1007/ s12274-010-0086-5.
2. Muñoz R., Gómez-Aleixandre C. J. Phys. D: Appl. Phys. 2014. V. 47. N 4. P. 045305. DOI: 10.1088/0022-3727/ 47/4/045305.
3. Sedlovets D., Red'kin A., Korepanov V., Trofimov O. Inorg. Mat. 2012. V. 48. N 1. P. 34-39.
4. Lippert G., Dabrowski J., Lemme M., Marcus C., Seifarth O., Lupina G. Phys. status solidi (b). 2011. V. 248. N 11. P. 2619-2622. DOI: 10.1002/pssb.201100052.

2016, Т. 59, № 8, Стр. 51-55

PALLADIUM FREE ACTIVATION OF DIELECTRICS SURFACES AND CARBON MATERIALS WITH SALTS OF MONOVALENT COPPER

In this work the original way of activation of a surface of carbon material in solutions on the basis of Cu(I) for the subsequent metallization is offered. In work results of research of properties of chemically deposited copper covering with preliminary activation are pre-sented.

Key words: metallization, carbon material, ABS – plastic, surface preparation

REFERENCES
1. Arzhanova T.A. Palladium free chemical and electrochemical metallization of dielectrics. Vladivostok: Dal'nauka. 1996. 180 p. (in Russian).
2. Yudina T.F., Ershova T.V., Pyatachkova T.V., Pyatachkov A.A. Chemical modification of PVC pastics. Gal'vanotekhnika i obrabotka poverkhnosti. 2005. V. 13. N 4 (in Russian).
3. Arzhanova T.A. RF Patient N 2077605.Solution for preliminary preparation of plastics surface for deposition of metal co. ers. 95100531/02; announce l.12.01.1995; publ. 20.04.1997 (in Russian).

2016, Т. 59, № 8, Стр. 45-50

INVESTIGATION OF INTERACTION OF COMPONENTS FIRE-RETARDANT SYSTEM WITH POLYACRYLNITRILE FIBRE

DOI: 
10.6060/tcct.20165910.5402

Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2016. V. 59. N 10. P. 77-82

2016, Т. 59, № 10, Стр. 77-82

INFLUENCE OF DIAMINOMALEODINITRIL ON QUALITY OF GALVANIC NICKEL PLATING

DOI: 
10.6060/tcct.20165910.5395

Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2016. V. 59. N 10. P. 72-76

Influence of diaminomaleodinitril on quality of galvanic nickel coverage was investi-gated. Structure and physical-chemical properties of nickel coverages were studied. It was established that diaminomaleodinitril introduced to standard electrolyte of nickel-plating (10 – 50 mg/l) is the effective brightener. The light-reflecting ability of the nickel-plating reaches of 82 %. The roughness of nickel coverage is reduced by a factor of 2.5. The electrolyte sca-ter ability is increased by a factor of 2.

Key words: electrochemical nickel-plating, electrolyte, brightener addition

REFERENCES
1. Mamaev V.I., Kudryavtsev V.N. Nickel-plating. M.: RKhTU. 2014. 192 p. (in Russian).
2. Kudryavtsev N.T. Electro-plating with metals. M.: Khimiya. 1979. 352 p. (in Russian).
3. Butkene R.V., Mutskute D.V. Galvanotekhnika i obrabotka poverkhnosti. 1993. V. 11. N 6. P. 11 – 15 (in Russian).

2016, Т. 59, № 10, Стр. 72-76

POLYMER COMPOSITE MATERIALS ON THERMOPLASTIC MATRIX

DOI: 
10.6060/tcct.20165910.5368

Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2016. V. 59. N 10. P. 61-71

The article presents the properties of thermoplastic polymer composite materials de-veloped from Russian components. VTP-7 is a material developed for injection molding. VKU-44 is a carbon plastic based on polyarylsulfone. Methods of modification of thermo-plastic polymers to give them functional properties are represented. It is shown that the de-veloped materials have not analogues in the domestic industry. The level of physical and me-chanical properties, fire properties and thermal stability of the developed materials fully comply with the requirements of the modern polymer composite materials. These materials are not inferior to foreign analogues.

2016, Т. 59, № 10, Стр. 61-71
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