Glass-Like Carbon Spheres — Activation, Porosity and Application Possibilities
نویسندگان
چکیده
منابع مشابه
Hard spheres: crystallization and glass formation.
Motivated by old experiments on colloidal suspensions, we report molecular dynamics simulations of assemblies of hard spheres, addressing crystallization and glass formation. The simulations cover wide ranges of polydispersity s (standard deviation of the particle size distribution divided by its mean) and particle concentration. No crystallization is observed for s>0.07. For 0.02<s<0.07, we fi...
متن کاملPorosity of resin cements and resin-modified glass-ionomers.
PURPOSE To quantify the internal free surface in various resin cements and glass-ionomer-based materials. MATERIALS AND METHODS Materials tested were Nexus fluid (NXF) and viscous (NXV), Vitremer (VTM), Fuji II LC (FII), Vitremer Luting Cement (VLC), Dyract (DYR) and Compoglass (COM). Samples (n=5) were made of each material between two microscopic glass slides under same weight. With a trans...
متن کاملapplication and construction of carbon paste modified electrodes developed for determination of metal ions in some real samples
ساخت الکترودهاِی اصلاح شده ِیکِی از چالشهاِی همِیشگِی در دانش شیمِی بوِیژه شیمِی تجزیه مِی باشد ،که با در نظر گرفتن سادگِی ساخت، کاربردی بودن و ارزان بودن روش مِی توان به باارزش بودن چنِین سنسورهاِی پِی برد.آنچه که در ادامه آورده شده به ساخت و کاربرد الکترودهاِی اصلاح شده با استفاده از نانو ذرات در اندازه گِیرِی ولتامترِی آهن وکادمِیم اشاره دارد. کار اول اختصاص دارد به ساخت الکترود خمِیر کربن اصلاح شده با لِیگاند داِ...
15 صفحه اولAcoustics of water saturated packed glass spheres
2014 We have measured the velocity and attenuation of sound in a pack of water saturated glass spheres. The frequency range spreads from 200 kHz to 10 MHz and the diameter of the spheres is varied from 50 03BCm to 500 03BCm. Our experimental data clearly confirm the validity of Biot’s theory of the propagation of sound in porous medium. J. Physique LETTRES 42 (1981) L-477-L-480 Classification P...
متن کاملThe ideal glass transition of hard spheres.
We use the replica method to study the ideal glass transition of a liquid of identical hard spheres. We obtain estimates of the configurational entropy in the liquid phase, of the Kauzmann packing fraction phi(K), in the range of 0.58-0.62, and of the random close packing density phi(c), in the range of 0.64-0.67, depending on the approximation we use for the equation of state of the liquid. We...
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ژورنال
عنوان ژورنال: Adsorption Science & Technology
سال: 2008
ISSN: 0263-6174,2048-4038
DOI: 10.1260/026361708788708298