نتایج جستجو برای: nano particle

تعداد نتایج: 221788  

2014
M. Rajabi M. M. Khodai N. Askari

Abstract In this project, nano-ZrO2 particles were dispersed in aluminum powder by a Y-shape mixer. The particle size of ZrO2 powder was < 40 nm and the amount of ZrO2 reinforcement varies from 3 to 15%.The mixed powders were compacted .Subsequently the compacted discs were sintered both in the microwave oven and in the conventional muffle furnace .Using microwave –assisted sintering method led...

Journal: :Acta chimica Slovenica 2014
Mateja Kert Katja Jazbec Lidija Černe Ivan Jerman Marija Gorjanc

The influence of different application methods on UV protective properties of white and dyed cotton functionalized with ZnO nanoparticles (nano-ZnO) was investigated. The methods differ in application procedure, time of treatment and auxiliaries used in the treating bath. The ultraviolet protection factor (UPF) was determined for untreated and functionalized samples. The presence of nano-ZnO on...

2004
Shozo Yanagida Yuji Wada Tetsushi Yamamoto Takao Sakata Hirotaro Mori Masaki Goto Shingo Hibino

Nan-sized inorganic particles having characteristic morphology and narrow size-distribution have attracted attention due to their potential applications as functional materials, i.e., catalysts, magnetic materials, conducting inks, and ferrofluids. Various preparation and stabilization methods of nano-sized metal particles, metal oxide particles, and metal sulfide particles have been reported. ...

2011
I N Kuznetsova

Nano-dispersions of perfluorocarbon (PFC) or PFC emulsions are substitutes of erythrocytes. They perform the function of the gas transport on condition when the particle structure will be preserved. The invariable values of the size and surface properties of the spherical PFC particles characterize the stability of their structure. The stable nano-dispersion on base PFC and phospholipids (PL) a...

Journal: :Journal of nanoscience and nanotechnology 2012
Lijian Xu Baizhen Chen Jingjing Du

A novel method of preparing the macrporous nickel coating was described. The macrporous nickel coating was fabricated by employing nano-silica as the template. The effects of technological conditions and the concentration of the additives on the surface quality of coating were investigated, the nano-silica was characterized transmission electron microscopy (TEM) and laser particle size analyzer...

2012
Hongzhen Xu Jiansheng Su Jun Sun Tianbin Ren

In this study, vascular stents were fabricated from poly (lactide-ɛ-caprolactone)/collagen/nano-hydroxyapatite (PLCL/Col/nHA) by electrospinning, and the surface morphology and breaking strength were observed or measured through scanning electron microscopy and tensile tests. The anti-clotting properties of stents were evaluated for anticoagulation surfaces modified by the electrostatic layer-b...

Journal: :international journal of nanoscience and nanotechnology 2012
m. h. korayem z. rastegar

contact mechanics is related to the deformation study of solids that meet each other at one or more points. the physical and mathematical formulation of the problem is established upon the mechanics of materials and continuum mechanics and focuses on computations involving bodies with different characteristics in static or dynamic contact. contact mechanics gives essential information for the s...

2017
Vikram Kestens Vassili Bozatzidis Pieter-Jan De Temmerman Yannic Ramaye Gert Roebben

Particle tracking analysis (PTA) is an emerging technique suitable for size analysis of particles with external dimensions in the nano- and sub-micrometre scale range. Only limited attempts have so far been made to investigate and quantify the performance of the PTA method for particle size analysis. This article presents the results of a validation study during which selected colloidal silica ...

Journal: :Electrochemical science advances 2021

Scanning electrochemical cell microscopy (SECCM) is a scanning-droplet-based technique that allows fluxes and/or interfacial reactivity to be measured and visualized with high spatiotemporal resolution. This minireview spotlights the use of SECCM for studying electrochemistry (nano)particles, highlighting recent works spanning multiple timescales (i.e., microseconds seconds) lengthscales nanome...

2017
Sijia Sun Tongrong Deng Hao Ding Ying Chen Wanting Chen

In order to improve the dispersion of nano-TiO₂ particles and enhance its self-cleaning properties, including photocatalytic degradation of pollutants and surface hydrophilicity, we prepared nano-TiO₂-coated SiO₂ microsphere composite self-cleaning materials (SiO₂-TiO₂) by co-grinding SiO₂ microspheres and TiO₂ soliquid and calcining the ground product. The structure, morphology, and self-clean...

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