A promising material for cold cathodes creation are carbon films with both acceptable emission properties and satisfactory adhesion to the substrate. It is known that inclusions of metallic elements (chromium, titanium, etc.) improve the adhesion of the carbon film to the substrate. One of the methods for producing coatings based on carbon and titanium is electric arc spraying of a Ti/C composite cathode in an argon atmosphere. The disadvantage of this method is the presence in the total plasma flow of carbon microparticles, which are sources of structural defects in the growing film. Magnetic separation of carbon plasma solves the above problem. In this work, composite metal-carbon films were obtained by simultaneous electric arc spraying of graphite in a magnetic field and of titanium from two evaporators. The composition of the films was studied by Raman spectroscopy (RS) and X-ray photoelectron spectroscopy (XPS). It has been established that the samples obtained are composite films consisting of graphite nanoparticles, TiC nanoclusters or TiC, titanium oxides, and titanium carbide TiC Ncompounds.
Zalim M. Khamdokhov
Institute of Informatics and Problems of Regional Management of Caucasus RAS, Nalchik, Russia
Zaur Ch. Margushev
Institute for Informatics and Problems of Regional Management, Kabardino-Balkarian
Zamir Kh. Kalazhokov
Institute for Informatics and Problems of Regional Management, Kabardino-Balkarian Scientific Center of the Russian Academy of Sciences, Nalchik, Russia; Kabardino-Balkarian State University named after H. M. Berbekov, Nalchik, Russia
1. Andrievskii R.A. The synthesis and properties of interstitial phase films // Russ. Chem. Rev. 1997. Vol. 66 (1). P. 53–72. DOI: https://doi.org/10.1070/RC1997v066n01ABEH000290
2. Investigation of TiC-C coatings by X-ray photoelectron spectroscopy / M.V. Kuznetsov, S.V. Borisov, O.P. Shepatkovskii et al. // J. Synch. Investig. 2009. Vol. 3. Iss. 3. P. 331–337. DOI: https://doi.org/ 10.1134/S102745100903001X
3. Effect of thermal annealing on the properties of a C/Ni heterostructure / E.Z. Khamdohov, Z.M. Khamdohov, V.S. Kulikauskas et al. // J. Synch. Investig. 2014. Vol. 8. Iss. 6. P. 1297–1301. DOI: https://doi.org/10.1134/S1027451014060305
4. Свойства хром-никелевых пленок после воздействия пучка ионов углерода / Э.З. Хамдохов, З.М. Хамдохов, А.З. Хамдохов и др. // Изв. Кабардино-Балкарского науч-ного центра РАН. 2015. № 5 (67). С. 18–23.
5. Ferrari A.C., Robertson J. Interpretation of Raman spectra of disordered and amorphous carbon // Phys. Rev. B. 2000. Vol. 61. Iss. 20. P. 14095–14107. DOI: https://doi.org/10.1103/PhysRevB.61.14095
6. NIST Standard Reference Database 20, Version 4.1 // National Institute of Standards and Technology: [Web] / U.S. Department of Commerce. URL: https://srdata.nist.gov/xps/ (дата об-ращения: 29.09.2021).
7. Lu M., Cheng Н., Yang Y. A comparison of solid electrolyte interphase (SEI) on the ar-tificial graphite anode of the aged and cycled commercial lithium ion cells // Electrochimica Acta. 2008. Vol. 53. Iss. 9. P. 3539–3546. DOI: https://doi.org/10.1016/j.electacta.2007.09.062
8. Microwave assisted exfoliation and reduction of graphite oxide for ultracapacitors / Y. Zhu, Sh. Murali, M.D. Stoller et al. // Carbon. 2010. Vol. 48. Iss. 7. P. 2118–2122. DOI: https://doi.org/10.1016/ j.carbon.2010.02.001
9. Ocal C., Ferrer S. The strong metal-support interaction (SMSI) in Pt-TiO2 model cata-lysts. A new CO adsorption state on Pt-Ti atoms // J. Chem. Phys. 1986. Vol. 84. Iss. 11. P. 6474–6478. DOI: https://doi.org/ 10.1063/1.450743
10. Thin TiCN films prepared by hybrid magnetron-laser deposition / T. Kocourek, M. Jelinek, J. Kadlec et al. // Plasma Process. Polym. 2007. Vol. 4. Iss. S1. P. S651–S654. DOI: https://doi.org/10.1002/ ppap.200731603
11. Mi P., He J., Qin Y., Chen K. Nanostructure reactive plasma sprayed TiCN coating // Surface and Coatings Technology. 2016. Vol. 309. P. 1–5. DOI: https://doi.org/10.1016/j.surfcoat.2016.11.033
12. Bertóti I. Characterization of nitride coatings by XPS // Surface and Coatings Technolo-gy. 2002. Vol. 151-152. P. 194–203. DOI: https://doi.org/10.1016/S0257-8972(01)01619-X