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Online since: July 2006
Authors: O. Milošević, Z. Marinković, Lydia Mančić, G. del Rosario
Additionally, the diversity of options through the process allows control of the particle surface morphology and in-situ development of nanophased particle structure [6,7].
The details of the precursor solution chemistry, experimental set up and established synthesis conditions are presented in [7].
The inner structure of particles was analysed by transmission electron microscopy, TECNAI 20 Philips operating at 200kW.
Fig. 5 Inner particle structure of powders obtained after thermal treatment at 1100 0C a) TEM; b) SEM.
reduction in particle specific surface area, average roughness and neck formation after heating on 1200 0C, improved luminescence characteristic is a result of structure arrangement only.
Online since: June 2014
Authors: Li Xin Chen, Fei Yang, Jin Yun
The structure of diamines was examined by melting point apparatus, FT-IR and nuclear magnetic resonance apparatus 1H-NMR.
The structure of the resultant was characterized by FT-IR, 1H-NMR, melting point.
Confirm of structures.
According to the upper analysis of yield and structure, we calculate the cost of per gram of each method.
The discussion about structure, the melting point, the process and the costs make us to determine the optimal synthetic method of the product.
Online since: September 2017
Authors: Ľudmila Dulebová, Volodymyr Krasinskyi, František Greškovič, Janusz W. Sikora
Article also compares structure of PA6/MMT nanocomposite.
The structure of MMT consist of stack of crystalline sheets [10].
Fig. 8 Structure of material PA6, 2500x Fig. 9 Structure of material PA6/4%Cloisite30B Fig. 10 Structure of material PA6/4%Cloisite93A Fig. 11 Structure of material PA6/4%CloisiteNa+ Fig. 12 Structure of material PA6/6%CloisiteNa+, 5000x Structure of PA6/4%Cloisite30B (Fig. 11) is homogeneous, does not show the filler clusters and other contaminants in the material itself.
Figure 10 shows the structure of the material PA6 / 4% Cloisite93.
Wilkie, Exfoliated poly (methyl methacrylate) and polystyrene nanocomposites occur when the clay cation contains a vinyl monomer, Journal of Polymer Science Part A: Polymer Chemistry 41/8 (2003) 1124–1135
Online since: December 2018
Authors: Craig S. Parsons, Tad V. Machrowicz, Andy E. Frerichs, Brian E. Meacham, Sheng Cheng, Alla V. Sergueeva, Daniel James Branagan
Detailed publications on the resulting structure property relationships [15,16], local formability [17], strain rate dependence [18], and weldability [19] were subsequently published.
Note that the iron based chemistry is the same for both grades but the steel production process was altered to develop two distinct sets of tensile properties in the blank, which are expected to effect the performance of the resulting stamping.
As shown, the microstructures in both samples are similar with well-defined microconstituent 1 and 2 regions in the structure.
More detailed analysis of NR&S mechanism during stamping and its effect on structure and property evolution is ongoing and will be subject of future publications.
Both Grade A and B exhibit significant changes in the structure and properties in the stampings, compared to those in the starting blanks.
Online since: May 2006
Authors: Athanasios K. Stubos, Eleni Pavlidou, Sofoklis S. Makridis, M. Daniil, A. Ioannidou, E.S. Kikkinidis, K.G. Efthimiadis, Th.A. Steriotis, Mary Konstantakou
., GR-50100, Kozani, Greece 3 Institute of Physical Chemistry, NCSR "Demokritos", Ag.
Crystal structure analysis has been performed by using the Rietveld method.
The only identified structure on the x-ray diffraction patterns is the MgCu2 (C15) type of structure with three different cell size parameters.
In this case Zr(Fe0.8Co0.1Cu0.1)2 as made bulk sample has the cubic C15 structure, as shown in Fig. 2.
Crystal structure analysis has been performed by using the Rietveld method.
Online since: March 2016
Authors: Sahbudin Shaari, Huda Abdullah, Mohd Syafiq Zulfakar, Wan Nasarudin Wan Jalal, Zalita Zainuddin
ZnFe2O4 known as spinel structures that can be applied for various applications.
It have been reported that by using different method to synthesize ZnFe2O4 will produced different structures, grain size and also homogenous structures.
It has been observed that all samples produced compact structures and produced uniform grain structures.
It was found that all samples exhibit the spinel cubic crystal structure of ferrite.
Pileni, Nonstoichiometric Zinc Ferrite Nanocrystals:  Syntheses and Unusual Magnetic Properties, The Journal of Physical Chemistry B. 104 (2000) 905-912
Online since: May 2016
Authors: I.R.W. Perdana, Mohabbatul Zaman Bukhari, A.A. Al-Hadi
In line with that, the main material that has been used in aircraft structure is aluminum.
In addition, Hornet F/A-18 is using 50% aluminum on its structure [15].
The basic structures of polyethylene are hydrogen and carbon atoms.
Megson, Aircraft Structures for Engineering Studies, 4 ed.
Wu, "Radiation-induced oxidation of ultra-high molecular weight polyethylene (UHMWPE) powder by gamma rays and electron beams: A clear dependence of dose rate," Radiation Physics and Chemistry, vol. 115, pp. 88-96, 10// 2015
Online since: November 2016
Authors: Margarita Russina, Evout Kemner, Ferenc Mezei
It is important that the presence of host molecules stabilizes the structure of clathrates, which usually collapses in the process of guest deintercalation.
The hydrogen filled clathrates form so-called structure sII, consisting of two types of cages, i.e.
Fig. 1 Structure of hydrogen clath-rates.
Fig. 2 Dynamic structure factor at Q=1 Å-1 of molecular hydrogen in bulk (a), confined in small (b) and large (c) cages.
Batsanov, Introduction to Structural Chemistry, Springer Science & Business Media, Heidelberg, 2012
Online since: September 2023
Authors: Nicuşor Alin Sîrbu, Mihaela Cecilia Florescu, Giuseppe Casalino, Marius Criveanu, Balász Varbai, Andrea Angelastro, Dorina Kovács, Ines Pires, Perry Pereira Alves Barbara Gouveia
It is also aim of this task to evaluate the requirements on digital tools and digital training methodologies in the field of steel structures.
Macrolearning is seen as the larger topic being mastered—for example, a degree in chemistry.
Mesolearning is more of an intermediate unit, such as an Organic Chemistry course.
The content is structured for the learner by someone else.
The learner creates a structure and works toward gathering information to fit that structure.
Online since: June 2012
Authors: Liang Fei
The structures and properties of emulsions were characterized by FTIR, TEM and DSC.
Introduction Waterborne polyurethane (WPU) has potential applications in coatings, inks, adhesives, textile finishing agent and biomedical fields for its excellent performance, which has become one of the most active and promising branches of polyurethane chemistry[1].
Properties And Structure of the Films of Waterborne Polyurethane blended with polyacrylate[J].
The structure and properties of acrylicpolyurethane hybrid emulsions[J].
The structure and properties of core-shell type acrylic-polyurethane hybrid aqueous emulsions[J].