Analysis of the Influence of Deposition Conditions on the Structure of the Coating Nb-Al-N

Nanocomposite Nb-Al-N films prepared by magnetron sputtering have been studied. It has been found that, in the films, there are two stable crystalline structural states, namely, NbNz and B1-Nb1 – xAlxNyO1 – y, and an amorphous like component related to aluminum oxynitride upon reactive magnetron sputtering. The substructure characteristics are sensitive to the current supplied to an Al target and related to the Knoop nanohardness and hardness, which change within in the ranges of 29-33.5 and 46-48 GPa, respectively. Ab initio calculations for the NbNz and Nb2AlN phases and NbN / AlN heterostructures have been performed to interpret the obtained results for the first time

Characterization of Ti-B-C-N Nanocomposite Coatings

Nanocomposite Ti-B-N-C coatings were deposited by magnetron sputtering of TiN and B4C targets in the argon-nitrogen atmosphere at different nitrogen flow rates (FN2). The structure, chemical bonding and mechanical properties were investigated. The results of the investigations of the nanocomposite, TiN and BCN coatings show that the Ti-B-C-N coatings consist of the TiNC nanocrystals (3.4 – 6.5 nm) embedded into the amorphous matrix that consists of amorphous boron nitrogen (a-BN) and amorphous carbon (a-C). The coatings contain a small admixture of titanium oxides that are aggregated at the grain boundaries. The coatings deposited at high nitrogen flow rates were textured. An introduction of nitrogen prompts the formation of the nanocrystallites of the TiN-TiC solid solutions and the a-BN amorphous tissue, which, in turn, causes the improvement of the mechanical properties of the Ti-B-C-N coatings. The best samples ex-hibited nanohardnes above 39 GPa. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3505

Analysis of the Influence of Deposition Conditions on the Structure of the Coating Nb-Al-N

Nanocomposite Nb-Al-N films prepared by magnetron sputtering have been studied. It has been found that, in the films, there are two stable crystalline structural states, namely, NbNz and B1-Nb1 – xAlxNyO1 – y, and an amorphous like component related to aluminum oxynitride upon reactive magnetron sputtering. The substructure characteristics are sensitive to the current supplied to an Al target and related to the Knoop nanohardness and hardness, which change within in the ranges of 29-33.5 and 46-48 GPa, respectively. Ab initio calculations for the NbNz and Nb2AlN phases and NbN / AlN heterostructures have been performed to interpret the obtained results for the first time

The effect of Al target current on the structure and properties of (Nb2Al)N films with an amorphous AlN phase

Nanocomposite films based on (Nb2Al)N intermetallic nitride have been obtained by the method of magnetron sputtering. Xray diffraction analysis revealed two stable states of the crystalline structure: (i) NbN with low amount (within 5 at %) of dissolved Al in a composition close to (Nb2Al)N and (ii) an amor phous component related to aluminum nitride formed by reactive magnetron sputtering. The substructural characteristics (grain size and microdeformation level) are sensitive to the current via Al target and exhibit correlation with nanohardness and Knoop hardness of the film, which vary within 29–33.5 and 46–48 GPa, respectively

The effect of Al target current on the structure and properties of (Nb2Al)N films with an amorphous AlN phase

Nanocomposite films based on (Nb2Al)N intermetallic nitride have been obtained by the method of magnetron sputtering. Xray diffraction analysis revealed two stable states of the crystalline structure: (i) NbN with low amount (within 5 at %) of dissolved Al in a composition close to (Nb2Al)N and (ii) an amor phous component related to aluminum nitride formed by reactive magnetron sputtering. The substructural characteristics (grain size and microdeformation level) are sensitive to the current via Al target and exhibit correlation with nanohardness and Knoop hardness of the film, which vary within 29–33.5 and 46–48 GPa, respectively

Structure and properties of nanocomposite Nb-Al-N films

Nanocomposite Nb–Al–N films prepared by magnetron sputtering have been studied. It has been found that, in the films, there are two stable crystalline structural states, namely, NbNz and B1–Nb1 ⎯ xAlxNyO1 – y, and an amorphouslike component related to aluminum oxynitride upon reactive magnetron sputtering. It has been established that the substructure characteristics are sensitive to the current supplied to an Al target and are related to the Knoop nanohardness and hardness, which change in the ranges of 29–33.5 and 46–48 GPa, respectively. Ab initio calculations for the NbNz and Nb2AlN phases and NbN/AlN heterostructures have been performed to interpret the obtained results for the first time.

Structure and properties of nanocomposite Nb-Al-N films

Nanocomposite Nb–Al–N films prepared by magnetron sputtering have been studied. It has been found that, in the films, there are two stable crystalline structural states, namely, NbNz and B1–Nb1 ⎯ xAlxNyO1 – y, and an amorphouslike component related to aluminum oxynitride upon reactive magnetron sputtering. It has been established that the substructure characteristics are sensitive to the current supplied to an Al target and are related to the Knoop nanohardness and hardness, which change in the ranges of 29–33.5 and 46–48 GPa, respectively. Ab initio calculations for the NbNz and Nb2AlN phases and NbN/AlN heterostructures have been performed to interpret the obtained results for the first time.

Percolation in Models of Thin Film Depositions

We have studied the percolation behaviour of deposits for different (2+1)-dimensional models of surface layer formation. The mixed model of deposition was used, where particles were deposited selectively according to the random (RD) and ballistic (BD) deposition rules. In the mixed one-component models with deposition of only conducting particles, the mean height of the percolation layer (measured in monolayers) grows continuously from 0.89832 for the pure RD model to 2.605 for the pure RD model, but the percolation transition belong to the same universality class, as in the 2- dimensional random percolation problem. In two- component models with deposition of conducting and isolating particles, the percolation layer height approaches infinity as concentration of the isolating particles becomes higher than some critical value. The crossover from 2d to 3d percolation was observed with increase of the percolation layer height.Comment: 4 pages, 5 figure

Теоретические аспекты внедрения модели оценки инновационного компонента для предприятий малого бизнеса

The article describes the main components of the definition of the innovative potential of small enterprises and identifies the characteristic features of small innovative enterprises (SIE). The mechanism of innovation potential identification of SIE was developed, where the main activity risks, advantages and disadvantages were underlined. The present state of business in Ukraine, the share of innovative enterprises in business, types of innovation and the level of innovative activity of small enterprises were considered. The author developed the new model for identification and analysis of the effectiveness of innovative components aimed at improving the level of investment attractiveness of the enterprise. The mentioned model is taken into account the positive sides of existing assessment models of innovation and consists of 2 stages (point evaluating and analyses of six coefficient groups) and as a result the integrated indicator is calculated for evaluating the level of innovative effectiveness.У статті розглянуто основні складові визначення інноваційного потенціалу малого підприємства та виявлено характерні риси малого інноваційного підприємства. Проаналізовано сучасний стан розвитку бізнесу в Україні, питому вагу інноваційних підприємств у бізнесі, типи інноваційної діяльності та рівень інноваційної активності малих підприємств. Проведено аналіз існуючих моделей оцінки інновації, на основі якого розроблено методику ідентифікації та аналізу ефективності інноваційної компоненти з метою забезпечення підвищення рівня інвестиційної привабливості підприємства.В статье рассмотрены основные составляющие определения инновационного потенциала малого предприятия и выявлены характерные черты малого инновационного предприятия. Проанализировано современное состояние развития бизнеса в Украине, удельный вес инновационных предприятий в бизнесе, типы инновационной деятельности и уровень инновационной активности малых предприятий. Проведен анализ существующих моделей оценки инновации, на основе которого разработана методика идентификации и анализа эффективности инновационной компоненты с целью обеспечения повышения уровня инвестиционной привлекательности предприятия

Теоретические аспекты внедрения модели оценки инновационного компонента для предприятий малого бизнеса

The article describes the main components of the definition of the innovative potential of small enterprises and identifies the characteristic features of small innovative enterprises (SIE). The mechanism of innovation potential identification of SIE was developed, where the main activity risks, advantages and disadvantages were underlined. The present state of business in Ukraine, the share of innovative enterprises in business, types of innovation and the level of innovative activity of small enterprises were considered. The author developed the new model for identification and analysis of the effectiveness of innovative components aimed at improving the level of investment attractiveness of the enterprise. The mentioned model is taken into account the positive sides of existing assessment models of innovation and consists of 2 stages (point evaluating and analyses of six coefficient groups) and as a result the integrated indicator is calculated for evaluating the level of innovative effectiveness.У статті розглянуто основні складові визначення інноваційного потенціалу малого підприємства та виявлено характерні риси малого інноваційного підприємства. Проаналізовано сучасний стан розвитку бізнесу в Україні, питому вагу інноваційних підприємств у бізнесі, типи інноваційної діяльності та рівень інноваційної активності малих підприємств. Проведено аналіз існуючих моделей оцінки інновації, на основі якого розроблено методику ідентифікації та аналізу ефективності інноваційної компоненти з метою забезпечення підвищення рівня інвестиційної привабливості підприємства.В статье рассмотрены основные составляющие определения инновационного потенциала малого предприятия и выявлены характерные черты малого инновационного предприятия. Проанализировано современное состояние развития бизнеса в Украине, удельный вес инновационных предприятий в бизнесе, типы инновационной деятельности и уровень инновационной активности малых предприятий. Проведен анализ существующих моделей оценки инновации, на основе которого разработана методика идентификации и анализа эффективности инновационной компоненты с целью обеспечения повышения уровня инвестиционной привлекательности предприятия