502 research outputs found

    Piezoelectric transformer based power supply for dielectric electro active polymers

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    Inductorless bi-directional piezoelectric transformerbased converters: Design and control considerations.

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    Electroceramics XIII:June, 24th-27th 2012, University of Twente, Enschede, The Netherlands

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    Selected problems of materials science

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    The stamp was provided by the Methodical Council Igor Sikorsky KPI (protocol № 8 from 24.06.2021) at the request of the Academic Council of the Institute of Physics and Technology (protocol № 12 of 14.06.2021)The textbook discusses the physical foundations and practical application of functional dielectrics and simiconductors. Theories, experimental data and also specifications of basic materials, necessary for practical application, are considered. The results of modern research in the field of microelectronics and nanophysics are taken into account, with a special attention paid to the influence of the internal structure on the physical properties of materials and prospects for their use. The textbook is based on the authors' many years of experience in teaching physical materials science, intended for the students of higher educational institutions with specializations in the fields of "Applied Physics" and "Microelectronics". The book can also be used by the graduate students, engineers and researchers specializing in materials science.У навчальному посібнику розглядаються фізичні основи та практичне застосування функціональних діелектриків та напівпровідників. Розглянуто теорії, наведені експериментальні дані, а також специфікації основних матеріалів, що необхідні для практичного застосування. Беруться до уваги результати сучасних досліджень у галузі мікроелектроніки та нанофізики, при цьому особлива увага приділяється впливу внутрішньої структури на фізичні властивості матеріалів і перспективи їх використання. Навчальний посібник заснований на багаторічному досвіді авторів у викладанні курсу фізичного матеріалознавства, призначеного для студентів вищих навчальних закладів із спеціалізаціями в галузях «Прикладна фізика» та «Мікроелектроніка». Книга також може бути використана аспірантами, інженерами та дослідниками, що спеціалізуються в галузі матеріалознавства

    Advances in Piezoelectric Systems: An Application-Based Approach.

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    Dielectrics - Digest of literature, volume 28, 1964

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    Dielectric constants, dipole moments, relaxation times, conduction phenomena, insulating films, breakdown, materials, and applications of dielectrics - annotated bibliograph

    Effect of water on electrical properties of Refined, Bleached, and Deodorized Palm Oil (RBDPO) as electrical insulating material

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    This paper describes the properties of refined, bleached, deodorized palm oil (RBDPO) as having the potential to be used as insulating liquid. There are several important properties such as electrical breakdown, dielectric dissipation factor, specific gravity, flash point, viscosity and pour point of RBDPO that was measured and compared to commercial mineral oil which is largely in current use as insulating liquid in power transformers. Experimental results of the electrical properties revealed that the average breakdown voltage of the RBDPO sample, without the addition of water at room temperature, is 13.368 kV. The result also revealed that due to effect of water, the breakdown voltage is lower than that of commercial mineral oil (Hyrax). However, the flash point and the pour point of RBDPO is very high compared to mineral oil thus giving it advantageous possibility to be used safely as insulating liquid. The results showed that RBDPO is greatly influenced by water, causing the breakdown voltage to decrease and the dissipation factor to increase; this is attributable to the high amounts of dissolved water
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