Crystal glass is a transparent material made with the same ingredients as glass, but with added lead-oxide or metal-oxide. The additional ingredients make the crystal retain its integrity even when cut or blown. The added ingredients in crystal glass makes the material slightly porous, giving it...
Lattice modelsGlassesNon-equilibrium phenomenaWe present here new evidence that after a quench the planar Potts model on the square lattice relaxes towards a glassy state if the number of states q is larger than four. By extrapolating the finite size data we compute the average energy of these ...
The glass over the dial of a watch case. Very clear. (3).牛津词典crystallitecrystal an individual perfect crystal or region of regular crystalline structure in the substance of a material, typically of a metal or a partly crystalline polymer. ...
The meaning of CRYSTAL is quartz that is transparent or nearly so and that is either colorless or only slightly tinged. How to use crystal in a sentence.
Recent publications demonstrate that the maximum homogeneous nucleation rates, I-max of silicate glasses strongly diminish with the reduced glass transition temperature, T-gr (= T-g/T-m/L), where T-g is the glass transition temperature and T-m/L is the melting point or liquidus temperature)...
Published values of crystal growth rates are compared for supercooled glass-forming liquids undergoing congruent freezing at a planar crystal-liquid interface. For the purposes of comparison pure metals are considered to be glass-forming systems, using data from molecular-dynamics simulations. For each ...
A liquid crystal welding glass structure whose density increases when welding is commenced includes two liquid crystal cells which are mounted between polarization filters which have an extinguishing effect on one another. When mounting the filters, the filters are turned so that their respective angular...
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The basic construction of a liquid crystal device (LCD) is shown inFig. 1. An LCD consists of a thin layer, of 5–10μm thickness, of liquid crystal material, confined between two glass substrates coated with a transparent conductor which has been selectively etched using standard techniques ...
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