نتایج جستجو برای: nanocomposite materials

تعداد نتایج: 446962  

2016
Oleh Boshko Mykola Dashevskyi Olga Mykhaliuk Kateryna Ivanenko Smail Hamamda Sergiy Revo

Nanocomposite materials of the Fe-Cu system with/without small addition of carbon nanotubes have been synthesized by mechanochemical activation of elemental Fe and Cu powders in a high-energy planetary ball mill and have been examined by the X-ray diffraction method, SEM and the thermopower methods; the tensile strength of the materials obtained has been estimated. The metastable (Fe, Cu) super...

2015
P. Markondeya Raj Parthasarathi Chakraborti Dibyajat Mishra Himani Sharma Saumya Gandhi Srikrishna Sitaraman

Miniaturization of passive components, while mounting them close to the active devices to form ultrathin high-performance power and RF modules, is a key enabler for next-generation multifunctional miniaturized systems. Traditional microscale materials do not lead to adequate enhancement in volumetric densities to miniaturize passive components as thin films or thin integrated passive devices. W...

Journal: :The Journal of chemical physics 2014
Rebeca Hernández Aurora Nogales Michael Sprung Carmen Mijangos Tiberio A Ezquerra

We report on a novel slow dynamics of polymer xerogels, aerogels, and nanocomposite aerogels with iron oxide nanoparticles, as revealed by X-ray photon correlation spectroscopy. The polymer aerogel and its nanocomposite aerogels, which are porous in nature, exhibit hyper-diffusive dynamics at room temperature. In contrast, non-porous polymer xerogels exhibit an absence of this peculiar dynamics...

2015
Marco Biondi Assunta Borzacchiello Laura Mayol Luigi Ambrosio

This review focuses on the most recent developments in the field of nanocomposite hydrogels intended for biomedical applications. Nanocomposite hydrogels are hydrated polymeric networks with a physically or covalently crosslinked three-dimensional (3D) structure swollen with water, in the presence of nanoparticles or nanostructures. A wide array of nanomaterials (polymeric, carbon-based, metall...

Journal: :Dental materials : official publication of the Academy of Dental Materials 2006
Min-Huey Chen Ci-Rong Chen Seng-Haw Hsu Shih-Po Sun Wei-Fang Su

OBJECTIVES The aim of this study was to develop a low shrinkage visible light curable nanocomposite dental restorative material without sacrificing the other properties of conventional materials. This nanocomposite was developed by using an epoxy resin 3,4-epoxycyclohexylmethyl-(3,4-epoxy)cyclohexane carboxylate (ERL4221) matrix with 55% wt of 70-100 nm nanosilica fillers through ring-opening p...

2017

Novel polymeric active food packaging films comprising halloysite nanotubes (HNTs) as active agents were developed. HNTs which are hollow tubular clay nanoparticles were utilized as nanofillers absorbing the naturally produced ethylene gas that causes softening and aging of fruits and vegetables; at the same time, limiting the migration of spoilage-inducing gas molecules within the polymer matr...

2012
Giulio Malucelli Francesco Marino

In order to be suitable for tribological applications, polymeric materials, which can usually exhibit mechanical strength, lightness, ease of processing, versatility and low cost, together with acceptable thermal and environmental resistances, have to show good abrasion and wear resistance. This target is not easy to achieve, since the viscoelasticity of polymeric materials makes the analysis o...

1997
Srinivas Manne Ilhan A Aksay

Recent research on the solution-based fabrication of inorganic thin films and organic/inorganic nanolaminates has ranged from fundamental studies of biomineralization to the synthesis of novel materials and devices. Highlights include the elucidation of how biogenics and model organic nucleants affect the form of the biomineral; synthesis of mesoscale nanocomposite films by surfactant templatin...

2008
Serena A Corr Yury P Rakovich Yurii K Gun’ko

Nanotechnology is a fast-growing area, involving the fabrication and use of nano-sized materials and devices. Various nanocomposite materials play a number of important roles in modern science and technology. Magnetic and fluorescent inorganic nanoparticles are of particular importance due to their broad range of potential applications. It is expected that the combination of magnetic and fluore...

2012
Fabrizio Spano Alessandro Massaro Laura Blasi Roberto Cingolani Athanassia Athanassiou

The controlled wettability of gold nanocomposite surfaces obtained by laser irradiation is introduced. Starting from the conception of materials with controlled surface properties, we describe all the different steps to generate the gold functionalized nanocomposite material and illustrate its surface wettability. Photopatterned gold polymeric films are performed in order to exhibit a remarkabl...

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