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Information × Registration Number 0213U004637, 0110U005740 , R & D reports Title Development of basic physics of CVD process of nitrogen doped conductive nanocrystalline diamond materials synthesis popup.stage_title Head Strel'nitskij Vladimir Evgenievich, Доктор фізико-математичних наук Registration Date 20-12-2013 Organization National Science Center "Kharkiv Institute of Physics and Technology popup.description2 Research report: 25 p., 9 Fig., 7 references. Object of study is the properties of nanostructured nitrogen-doped diamond coatings and the CVD method of their synthesis. The purpose of the project is to develop the process of forming the electrode materials based on nitrogen-doped nanocrystalline coatings. The method of investigation is an experimental study of influence of conditions of nitrogen-doped nanocrystalline diamond films synthesis in glow discharge plasma on their structure and electrical properties and relationship of these changes with variation in electrochemical characteristics of diamond films using the methods of scanning electron microscopy, X-ray diffraction and the cyclic voltammetry. Due to further optimization the conditions of nitrogen-doped diamond nanostructured coatings synthesis, namely, increasing the concentration of argon in the gas mixture up to 65% and increasing the synthesis temperature up to 1270 K the coatings resistivity is reduced to a level of a few tenths of ohm х cm, which is on one order of magnitude smaller compared with the previous stage of this project. The studies of the influence of conditions of nitrogen-doped nanostructured diamond coatings coatings synthesis and substrates pre-treatment on a continuous coating deposition have been performed. It has been established that the thickness of the nitrogen-doped diamond nanostructured coatings for use as electrodes should be about 4 microns when substrates have been pre-machined with ultra dispersed diamond powder. The electrochemical characteristics of nitrogen-doped nanostructured diamond coatings have been studied. It has been established that the potential window for nitrogen doped nanostructured diamond coatings depends on its resistivity and can be ranged from ~ 3 to 3.8 V. With the decrease of the coatings resistivity the electrochemical activity increases and decreases the potential window. The results of studies have been laid in the base of the process of the nitrogen doped nanostructured diamond coatings synthesis for their use as electrode material. It was shown that the method of synthesis of nitrogen-doped nanostructured diamond coatings in crossed E/H fields is really quite different from the other known methods for their synthesis. Product Description popup.authors Василенко Руслан Леонідович Воєводін Віктор Миколайович Грицина Василь Іванович Дудник Станіслав Федорович Кошевий Костянтин Іванович Луценко Валентин Дмітрович Опалев Олег Анатолійович Перепьолкін Сергій Степанович Решетняк Олена Миколаївна Стрельницький Володимир Євгенійович popup.nrat_date 2020-04-02 Close