Abstract
This paper presents the research results of complex impact of mechanical stress and electromagnetic field on the defect structure of energy materials. As the object of research quite a typical energy material - silver azide was chosen, being a model in chemistry of solids. According to the experiments co-effect of magnetic field and mechanical stress in silver azide crystals furthers multiplication, stopper breakaway, shift of dislocations, and generation of superlattice dislocations - micro-cracks. A method of mechanical and electric strengthening has been developed and involves changing the density of dislocations in whiskers.
Highlights
The control over physical and mechanical properties of materials by different methods of treatment effecting on their defect structure has been a burning issue so far
This paper provides the research results of complex influence of mechanical stress and electromagnetic field on the defect structure of energy materials
The kinetic dependencies of accumulating dislocations have been obtained for mechanical stress (5 105 - 5 107 N/m2), according to them it has been stated that in 7-9 seconds of exposure the sample loses its mechanical integrity and is subject to brittle fracture
Summary
The control over physical and mechanical properties of materials by different methods of treatment effecting on their defect structure has been a burning issue so far.For semiconducting and energy materials this urgency is caused by probable intensifying chemical processes, as well as by improvement of some functional properties, for instance, stability and reactivity.This paper provides the research results of complex influence of mechanical stress and electromagnetic field on the defect structure of energy materials.As the object of research quite a typical energy material – silver azide was chosen, being a model in chemistry of solids.The defect structure of silver azide has been well studied. The control over physical and mechanical properties of materials by different methods of treatment effecting on their defect structure has been a burning issue so far. For semiconducting and energy materials this urgency is caused by probable intensifying chemical processes, as well as by improvement of some functional properties, for instance, stability and reactivity. This paper provides the research results of complex influence of mechanical stress and electromagnetic field on the defect structure of energy materials. As the object of research quite a typical energy material – silver azide was chosen, being a model in chemistry of solids. The defect structure of silver azide has been well studied. Silver azide is defect according to Frankel with mainly labial interstitial cations of silver (Ag+). The surface of silver azide crystals is positively charged, and the surficial zone is enriched by negatively charged cation vacancies (Vk )
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