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2019-4-24u2002·u2002where H is the distance between the tip of the spinneret and the collector, h is the length of the spinneret, and R is the outer radius of the spinneret. The units of H, h, and R are all in centimeters, while the unit of γ is dyn/cm and the unit of the voltage is kV. The factor 1.3 is derived from 2 cos 49.3° when considering that the cone has a semivertical angle close to a …
Get PriceP.G. Kwiat, D.F.V. James, in Encyclopedia of Modern Optics, 2005 Lithography. Lithography, in which a pattern is optically imaged onto some photoresistive material, is the primary method of manufacturing microscale or nanoscale electronic devices.An inherent limitation of this process is that details smaller than a wavelength of light cannot be written reliably.
Get PriceMultilayer production techniques based on electrodeposition. Considering the broad variety of deposition processes and types of coating, such as nanograined, superlattice, multilayer, thin-film and nanocomposite coatings, it is important to carefully select the deposition technique and coating type tailored to match properties to the application.
Get Price2019-8-28u2002·u2002Rare-earth metals create unique opportunities in improving properties of aluminum alloys. For over a century, there have been attempts to explore cerium for aluminum alloying, emphasizing advantages it exhibits among rare earths. This review covers laboratory and industrial efforts of applying cerium for a purpose of developing aluminum alloys with superior …
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Get Price2017-12-13u2002·u2002Shide Hu. This paper presents the first of a series of studies on the seismic design of high-rise towers for cable-stayed bridges under …
Get Price2.3 Crystal Structures – Atom Packing in Metals. The common metallic biomaterials (i.e., stainless steel, Co-based alloys and Ti and. its alloys) …
Get Price2015-10-24u2002·u2002A simple bend is done in which the line of bend is straight. One or more bends may be involved, and bending tools are a large important class of pres tools. Forming Forming tools apply more complex forms to work pieces. The line of bend is curved instead of straight and the metal is subjected to plastic flow or deformation. 41.
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