Also, this type has a large number of direct dyes with respect to the small number of acid and mordant dyes. They are derived from a diamine which is diazotized twice and copulated with identical or different terms. Figure 10 shows the structure of the blue direct dye contains benzidine ...
The glass–ceramic nanocomposite after 2 h of heating exhibits significant improvement of electrical conductivity. The activation energy (W), polaron radius (rp) and other parameters have been estimated in the non-adiabatic region. The current–voltage (I–V) curve of each sample was measured. A...
Analysis of Chemistry Element Composition and Properties of Materials for Heating Surface of Ultra-Supercritical Coal Power Plants 来自 Semantic Scholar 喜欢 0 阅读量: 27 作者:LI Chun-Yan,WP Yan 摘要: To improve the efficiency of conventional fossil power plants, the steam temperature and pressure ...
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A greater flexibility in the size of element also facilities testing of actual concrete compositions. However, a less tightly controlled thermal environment introduces greater redundancy and complexity to back-calculate fundamental parameters so finite element or analytical modelling is typically used for ...
to be the most interesting class of minerals that have attracted substantial worldwide attention and investment in research and development. In 1930, the nature of clay can be defined with advanced development in X-Ray diffraction technology used to investigate the molecular nature of clay particles...
The current work is mainly devoted to the synthesis, structural, electrical, and magnetic characterization of Sr1−XLaXFe12O19 (X = 0.2–0.8) (SLFO) nanoparticles synthesized via the hydrothermal technique. The hexagonal peaks were determined using X-ray diffraction analysis. The obtained re...
Although the lightest element, hydrogen, is rarely encountered in oxide perovskite lattices, it was recently observed as the hydride anion HÀ , substituting for the oxide anion in BaTiO3. Here we present a series of 30 new complex hydride perovskite-type materials, based on the non-spherical...
The definition of HEAs highlight the component contain several components (five or more major elements) in equimolar or near-equimolar proportions and the concentration of the major element being between 5 at% and 35 at% [2]. Hence, the unique composition render the four core effects of HEAs...
1a, the coatings were made of hierarchical structure that can be classified into a top discontinuous Al2O3 film, followed by a Fe-Al compound intermediate layer of 12 μm and finally a Fe(Al,Cr) solid solution diffusion layer of 80–90 μm. The element concentrations along line AB in ...