The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This work presents a novel injection system based on silicon oxide microneedles. Microneedles fabricated in this work are hollow microcapillaries whose length ranges from tens to hundreds of microns and their tip diameter is in the range of micrometers. Structures based on microneedles are of increasing interest in medical and biological applications, specially for injection and manipulation. Fabrication...
In order to increase the surface area, mesoporous tungsten oxide has been synthesized. In this work, we have used mesoporous silica SBA-15 and KIT-6 as a template for the synthesis of different WO/sub 3/ mesostructures. This material shows a small particle size, about 5-20nm, and a high surface area. We have reported here the synthesis pathways of these mesoporous oxides and their structural and electric...
Nanocomposite materials show promising results for applications as electrical insulation. Among several materials presently under investigation, previous works indicate that polypropylene and ethylene-vinilacetate filled by nanosilicates present lower content of space charge and higher electric strength. However, efforts are needed to explain nanocomposite behaviour and characterize their electrical,...
Epoxy resin containing nano-scale silica particles was prepared to evaluate partial discharge degradation and insulation breakdown strength. This material showed superior partial discharge resistance and breakdown strength to epoxy resin without silica particles. Moreover, the focus was on dimension of silica particles and a silane coupling agent to investigate the influence of epoxy/silica interface...
The burgeoning area of nanodielectrics has been fueled by the demonstration of enhanced electrical and mechanical properties observed in nanoparticle filled polymers. The high surface energy and vastly augmented surface area (in comparison to conventional composites) is thought to be the underlying reason for such benefits. This paper explores the electrical properties of silicon dioxide nanoparticle/low-density...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.