Ecologically clean evaporation-condensation method application for obtaining of electrical contacts based on copper composite materials
Journal Title: Екологічна безпека та природокористування - Year 2018, Vol 26, Issue 2
Abstract
In this paper is considered the electron-beam technology on new materials creation, including copper and its alloys, as one of the most promising directions of modern electrometallurgy. The formation process of condensed composite materials (CCM) using this technology is absolutely environmentally clean, because it occurs in a vacuum, in addition, similar materials are obtained in a single technological cycle, what is economically profitable. It is shown that this method was used for the first time to obtain structural composite materials Cu-Mo, Cu-W, Cu-Cr (massive sheet condensates weighting up to 30 kg separated from the substrate), which were used for electrical contacts and electrodes. The most industrial applications found the condensed from the vapor phase CM of Cu-Zr-Y-Mo and Cu-Cr-Zr-Y-Mo systems for discontinuous electrical contacts. The mechanical properties of materials of Cu-Zr-Y-Mo system have been studied and it is shown that these materials are characterized by a sufficiently high electrical conductivity, hardness, strength and satisfactory plasticity, and mostly allows to refuse from silver-containing contacts, since they are not inferior, and in some cases exceed them for their operational reliability.
Authors and Affiliations
Vira G. Grechanuyk, Oleksandra V. Matsenko
Keywords
Related Articles
- EP ID EP497800
- DOI 10.32347/2411-4049.2018.2.43-48
- Views 58
- Downloads 0
Ecological safety of territories at introduction of modern technologies of processing of vegetable wastes
Work is devoted to the decision of research and practice task from the ground of changes of the state of ecological safety of territories at introduction of modern technologies of processing of vegetable wastes. The work...
Features of reservoirs eutrofication by elements of agrochemical fertilizers
Phosphorus, also as nitrogen and potassium, is essential for the normal development of plants. The source of phosphorus for plants is phosphate of soil, mainly calcium phosphate Са3(РО4)2. But for most soils, calcium pho...
Ontological approach to the description of the reservoir's passport
In this paper, an ontologized description of the ecological passport of reservoirs is proposed that allows grouping and combining all necessary data in one document for solving various ecological problems, in particular...
The factors and possible consequences of regional changes in engineering and geotechnical status of loesses and loessy-loamy soils of Ukraine
Over the recent decades in Ukraine regional activation of flooding of lands, accompanied by landslide formation and subsidence of surfaces take place. It is caused by interaction of a complex of natural and technogenic f...
Organization of municipal solid waste sorting: local aspect
The approach to organization of municipal solid waste sorting is developed. It is proposed to introduce a logistics system for the management and handling of solid waste at the local level. The system provides a sequence...