A. V. Korzhov, A. V. Prokudin, V. I. Safonov, A. B. Mamazhonov
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引用次数: 0
Abstract
The article presents the results of a study of the development of specific defects (treeings) induced by an electric field in a sample of the pyridinedicarboxamide–polydimethylsiloxane copolymer. The process of defect growth was carried out by creating a sharply nonuniform electric field using a needle–needle electrode system. To analyze the process of treeing channel development in the sample structure, video recordings of the interelectrode space were made, according to which repeated formation and disappearance of electrical defects occurred, despite the effect of the electric field. The time of defect formation ranged from 1 to 4 s; the duration of self-healing of the damaged area of the material ranged from 3 to 12 s. On the basis of analysis of the experimental data, a simplified model of energy exchange in treeing channels was developed, taking into account the movement of gas inside the channel and the elastic properties of the channel walls.
期刊介绍：
Inorganic Materials: Applied Research contains translations of research articles devoted to applied aspects of inorganic materials. Best articles are selected from four Russian periodicals: Materialovedenie, Perspektivnye Materialy, Fizika i Khimiya Obrabotki Materialov, and Voprosy Materialovedeniya and translated into English. The journal reports recent achievements in materials science: physical and chemical bases of materials science; effects of synergism in composite materials; computer simulations; creation of new materials (including carbon-based materials and ceramics, semiconductors, superconductors, composite materials, polymers, materials for nuclear engineering, materials for aircraft and space engineering, materials for quantum electronics, materials for electronics and optoelectronics, materials for nuclear and thermonuclear power engineering, radiation-hardened materials, materials for use in medicine, etc.); analytical techniques; structure–property relationships; nanostructures and nanotechnologies; advanced technologies; use of hydrogen in structural materials; and economic and environmental issues. The journal also considers engineering issues of materials processing with plasma, high-gradient crystallization, laser technology, and ultrasonic technology. Currently the journal does not accept direct submissions, but submissions to one of the source journals is possible.
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