نتایج جستجو برای: crystalline materials
تعداد نتایج: 469111 فیلتر نتایج به سال:
چکیده ندارد.
X-ray powder diffraction methods have been more and more extensively used, in the last twenty years, in the characterization of different crystalline and non-crystalline materials of archaeological, historical, artistic interest. The present paper aims to discuss the use of these methods in studying different aspects related to the Cultural Heritage conservation. This purpose has been achieved ...
Electron tomography is a well-established technique for three-dimensional structure determination of (almost) amorphous specimens in life sciences applications. With the recent advances in nanotechnology and the semiconductor industry, there is also an increasing need for high-resolution three-dimensional (3D) structural information in physical sciences. In this article, we evaluate the capabil...
The theory of phase separation m a liquid crystal by spinodal decompoSit1on is developed The time evolution of two coupled parameters, the volume concentration (or mole fraction), and the orientational order parameter is calculated The conditions for penodic fluctuations are gJven and the structure factor for spinodal decomposition is studied
One of the principal problems with nano-crystalline materials is producing them in quantities and sizes large enough for valid mechanical property evaluation. The purpose of this study was to explore an innovative method for producing nano-crystalline γ-TiAl bulk materials using high energy ball milling and brief secondary processes. Nano-crystalline powder feedstock was produced using a Fritsc...
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