Microstructure and properties of nanocomposite Al-Si-N system coatings produced by magnetron sputtering

The paper presents the results of investigations of the structural and phase conditions, mechanical and optical properties of Al-Si-N system coating obtained by magnetron sputtering. The thickness of this coating ranges from 3 to 19 µm and is sprayed on silica glass using magnetron sputtering technique. The formation of nanoscale AlN single phase with HCP crystal system and the crystal grain size of up to 20 nm is discovered using the X-ray diffraction method. The texture of [002] orientation is observed in the structure of Al-Si-N-based coatings. These coatings are characterized by high values of microhardness and coefficient of restitution. The transmission spectrum of the coatings are produced within the range of 190-1100 nm. Al-Si-N-based coatings are characterized by a high degree of transparency (≈ 80%) within the visible light spectrum and complete opaqueness in the ultraviolet region. The refractive index and the thickness of Al-Si-N system coating are determined using the transmission spectrum and refractive index. The refractive index of Al-Si-N-coated glass samples is determined using the transmission spectrum the value of which increases with the increase in the coating thickness

Structure and optical-mechanical properties of the Zr-Y-O coatings deposited by pulse magnetron sputtering on optical glass

The results of the research of the phase composition and the mechanical properties of the coatings on the basis of the Zr-Y-O system produced by pulsed magnetron sputtering on the K208 glass substrates are presented in this paper. By the X-ray diffraction method it has been discovered that there is the ZrO2 phase in two modifications in the coatings. The deposition of the Zr-Y-O coating system allows not only to increasing the microhardness of the surface layer of the K208 glass up to ~19 GPa, but also maintain a high level of the elastic properties (We> 0.70). The laboratory tests have been carried out on the impact of the high-speed flows of iron microparticles on the Zr-Y-O protective coating produced by pulsed magnetron sputtering. When a high-speed flow of iron microparticles impact the samples with the Zr-Y-O coatings the surface density of the craters decreases ~ 7 times compared with initial state

What is the secret to a successful reorganization В чем секрет успешной реорганизации

The article describes and discusses the features of the process of reorganization of the company, its main stages and its necessity. The main types and directions of restructuring are described in current economic conditions and the main challenges and problems faced by a typical Ukrainian firm are paid attention to. On the basis of the material processed recommendations for reorganization have been developed.В статье освещены и рассмотрены особенности проведения процесса реорганизации предприятия, основные этапы и обоснована ее целесообразность. Были выделены основные виды и направления процесса реорганизации в современных экономических условиях и установлены основные задачи и проблемы, стоящие перед типичным украинским предприятием. На основе проработанного материала были разработаны рекомендации по проведению реорганизации предприятия

Analysis of Modern State of Engineering Industry of Ukraine Анализ современного состояния машиностроительной отрасли Украины

The article studies the modern state of engineering companies of Ukraine. It proves importance of the engineering industry, state and level of development of which is the main indicator of economic and, first of all, industrial development of the country. It reveals main problems of engineering companies, which arise under modern economic conditions and slow down or even stop their development. The studied material is used for development of recommendations on improvement of the state and solution of main problems of the engineering industry of Ukraine.В статье исследовано современное состояние машиностроительных предприятий Украины. Доказана важность машиностроительной отрасли, состояние и уровень развития которой является основным из показателей экономического и, прежде всего, промышленного развития страны. Выявлены основные проблемы, которые возникают в современных экономических условиях перед машиностроительными предприятиями и замедляют или вовсе приостанавливают их развитие. На основании исследованного материала были разработаны рекомендации по улучшению состояния и решения основных проблем машиностроительной отрасли Украины

Microstructure and properties of nanocomposite Al-Si-N system coatings produced by magnetron sputtering

The paper presents the results of investigations of the structural and phase conditions, mechanical and optical properties of Al-Si-N system coating obtained by magnetron sputtering. The thickness of this coating ranges from 3 to 19 µm and is sprayed on silica glass using magnetron sputtering technique. The formation of nanoscale AlN single phase with HCP crystal system and the crystal grain size of up to 20 nm is discovered using the X-ray diffraction method. The texture of [002] orientation is observed in the structure of Al-Si-N-based coatings. These coatings are characterized by high values of microhardness and coefficient of restitution. The transmission spectrum of the coatings are produced within the range of 190-1100 nm. Al-Si-N-based coatings are characterized by a high degree of transparency (≈ 80%) within the visible light spectrum and complete opaqueness in the ultraviolet region. The refractive index and the thickness of Al-Si-N system coating are determined using the transmission spectrum and refractive index. The refractive index of Al-Si-N-coated glass samples is determined using the transmission spectrum the value of which increases with the increase in the coating thickness