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Information × Registration Number 0220U103308, 0117U000255 , R & D reports Title Development of chemical and atomic spectrometric methods of analysis of new types of materials, including impact-resistant ceramic, materials for fuel cells, and high-entropy alloys and study the physical and chemical phenomena that affect the sensitivity and accuracy of the methods of analysis popup.stage_title Head Kurochkin Volodymyr D, Доктор хімічних наук Registration Date 14-09-2020 Organization Institute of Problems of Materials Science named after IM Frantsevich of the National Academy of Sciences of Ukraine popup.description2  The object of study is chemical and physico-chemical processes in the application of chemical, physico-chemical and atomic-spectrometric methods of analysis of the elemental composition of inorganic materials. The purpose of the work is the creation of techniques of mass spectrometric, emission spectral (OES), X-ray fluorescence analysis (XRF) of new materials for which there are no standard samples, development of methods of phase chemical analysis of Al2O3, analysis of carbon nanoforms in their mixture, study of reactions of thermal dissociation of boron nitride modifications. The mass spectra of the multicomponent AlCrFeCoNiCu alloy in the glow discharge were analyzed experimentally and by mathematical modeling. An atlas of molecular interference was created in the analysis of this alloy. A mathematical model and a computer program have been developed in which the method of fundamental parameters for XRF analysis of new types of alloys is implemented. The method was used to analyze high-entropy alloy (HEA) of AlCrFeCoNiCu type. A mathematical model and a computer program were developed for calculation of plasma parameters and the intensities of the spectral lines of atoms and ions in the spark discharge in air. Based on the research, the concept of OES analysis of AlCrFeCoNiCu alloy using standard steel samples was developed. The reactions of thermal dissociation of boron nitride (BN) modifications were investigated by pulsed re-extraction in a helium carrier gas stream. The temperature dependences of the mass fraction of nitrogen extracted during the decomposition of BN nano- and micropowders were obtained. Oxidizing properties of micron powders of graphene were investigated by fractional oxidation methods. Their similarity with the oxidation temperatures of the corresponding cross-, cone-layer and scroll-like carbon nanofibers has been established. Using the methods of chemical phase analysis, the formation of gamma to alpha-Al2O3 oxides in the temperature ran Product Description popup.authors Garbuz Victor V. Kuzʹmenko Lyudmyla M Petrova Vera A Romanenko Olʹha M Romanova Larisa O popup.nrat_date 2020-10-01 Close