Materials Literature
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We report a comprehensive analysis of the cloaks proposed for bending waves propagating in a thin metallic plate. The analysis uses a semi-analytical model which is able to reproduce the experimental data reported by Stenger and coworkers [see Phys. Rev. Lett., vol. 108, 014301 (2012)]. The model is based on the Kirko…
A one-pot synthetic method is developed for the fabrication of 3D self-growth NiO/TiO2 through a simple low-temperature hydrothermal synthesis by simply immersing nickel foam in an aqueous solution of TiCl4. The 3D NiO/TiO2 nanoparticles exhibit enhanced lithium-ion-storage performance. More details can be found in th…
The efficiency of solar thermal collectors strongly depends on the optical properties of solar selective materials used in their design since the solar absorber surfaces should have high solar absorptance in the wavelength range of 0.3–2.5 µm and low thermal emittance in the infrared region (beyond 2.5 µm). Different…
Acoustic metasurfaces are thin, engineered structures that can control the local reflection and transmission phase of acoustic waves, and thus enable a high degree of flexibility of wave manipulation. They are currently under active investigation by a multiple research groups for diffractive acoustic elements, surface…
Permanent magnets are vital components in the rapidly-developing renewable energy sector, where the motors for electric vehicles and the generators in wind turbines require strong magnets with the ability to operate at temperatures well over 100°C. To achieve high coercivity, remanence and consequently high energy pro…
We report epitaxial growth and characterization of GaN thin films on sapphire\n(0001) substrates using low temperature GaN intermediate layer by plasma\nassisted molecular beam epitaxy (PA-MBE) technique. As grown and annealed GaN\nthin films were studied by high- resolution X-ray diffraction (HRXRD), atomic\nforce mi…
Ball milling techniques have been used extensively in the last 30 years for the synthesis and processing of novel materials. The continuous fracturing and cold welding processes during milling allows to mechanically mix elements/compounds at an atomic scale, extend the solid solubility of metals and, in turn, obtain n…
Abstract : Pressed pellet thermal battery designs constitute the bulk of the present thermal battery industry. Thin-film fast rise thermal batteries are not yet in production, but are anticipated to supply important future niche applications in small-caliber arms and bunker penetrating munitions. Both types of thermal…
This report fulfills the M4 milestone, M4FT-15IN08020110 UNF Analysis Support, under Work Package Number FT-15IN080201. The issue of materials selection for many engineering applications represents an important problem, particularly in cases where material failure is possible as a result of corrosive environments. For…
Stahlbänder werden für ihren Transport zur weiteren Verarbeitung generell geschützt, im einfachsten Fall wird das durch eine Beölung der Oberfläche realisiert. Die Verwendung von Öl hat jedoch Nachteile aufgrund einer mangelnden Haftung auf der metallischen Oberfläche und der damit verbundenen Verunreinigung der Lager…
No presente trabalho, foi feito um estudo sobre o cimento asfaltico de petroleo CAP, envolvendo a sua modificacao pelos polimeros termoplasticos polietileno de alta densidade (PEBD), polietileno de baixa densidade (PEBD) e polietileno linear de baixa densidade (PELBD), os dois ultimos de diferentes grades, e o estudo…
The ATF Implementation Plan integrates DOE’s objectives and goals with the national laboratory’s expertise and infrastructure in support of the technology development by three industry partners. DOE’s plan is to develop advanced LWR fuels with enhanced accident tolerance in response to the Congressional request and to…
University of Minnesota Ph.D. dissertation. September 2015. Major: Chemical Engineering. Advisor: Frank Bates. 1 computer file (PDF); xvi, 329 pages.
Background: Nanoparticles are increasingly suspected as a strong etiologic factor in sarcoidosis pathogenesis.The aim of our study was to evaluate lung inflammatory response and histology changes following exposure of mice to two types of nanoparticles: carbon nanotubes (MWCNT) and cadmium-based nanoparticles (QDOT705…
Electron beam melting (EBM) has been used to manufacture Ti-6Al-4V micro-truss materials for light weight mechanical applications. Several structures were examined, including a cubic lattice, a diamond structure and randomly-structured foams. The “As-built" material, after the selection of processing parameters and fa…
The objective of this study is whether or not cerium dioxide (CeO2) nanoparticle has the pulmonary toxicity. We performed inhalation and intratracheal instillation studies using same sample of cerium oxide nanoparticles, and examined the pulmonary inflammation in both studies. In intratracheal instillation study, rats…
Background: Silica is the common name for silicon dioxide (SiO2) materials and exists in both crystalline and amorphous forms. While crystalline silica is known for its severe health effects, amorphous silica has been considered safe and applied in many areas. However, some recent studies have showed evidence of their…
Nepheline (NaAlSiO₄) crystals can form during slow cooling of high-level waste (HLW) glass after it has been poured into a waste canister. Formation of these crystals can adversely affect the chemical durability of the glass. The tendency for nepheline crystallization to form in a HLW glass increases with increasing c…
The patency rate of small diameter synthetic bypass grafts remains poor. The aim of this study was to develop a biocompatible, acellular, arterial scaffold, assess the scaffolds regenerative capacity using ovine vascular cells and begin preliminary studies of a vascular tissue bioreactor for the development of a tissu…
Wax formation in diesel and biodiesel fuels at low temperatures is one of the major problems faced by the fuels industry as crystallisation of the saturated compounds present in these solutions can plug up filters and obstruct pipelines. Preventing wax formation in these multicomponent mixtures requires a good underst…