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Online since: February 2021
Authors: Petr Urban, Jesus Cintas Físico, Raquel Astacio Lopez, Fátima Ternero Fernández, Rosa María Aranda Louvier
Laser diffraction, Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM) and Differential Scanning Calorimetry (DSC) were employed to characterize the particle size, morphology and structure of mechanically alloyed Ti60Si40.
When the milling time is increased to 20 h, the particle size decreases from 23.7 to 4.7 μm, the shape of the particles changes to spherical and the crystalline structure is transformed into an amorphous phase.
One possible processing route to improve these properties is vitrifying the crystalline microstructure obtaining amorphous structure.
The structure and amorphization progress of the ball milled powders were characterized by X-ray diffraction (XRD, Siemens D500) using CuKα radiation, scanning electron microscopy (SEM, Philips XL 30) and transmission electron microscopy (TEM, Philips CM-200).
Firstov, Influence of tin on the structure and properties of as-cast Ti-rich Ti-Si alloys, Journal of Alloys and Compounds 350 (2003) 164-173
When the milling time is increased to 20 h, the particle size decreases from 23.7 to 4.7 μm, the shape of the particles changes to spherical and the crystalline structure is transformed into an amorphous phase.
One possible processing route to improve these properties is vitrifying the crystalline microstructure obtaining amorphous structure.
The structure and amorphization progress of the ball milled powders were characterized by X-ray diffraction (XRD, Siemens D500) using CuKα radiation, scanning electron microscopy (SEM, Philips XL 30) and transmission electron microscopy (TEM, Philips CM-200).
Firstov, Influence of tin on the structure and properties of as-cast Ti-rich Ti-Si alloys, Journal of Alloys and Compounds 350 (2003) 164-173
Online since: August 2009
Authors: Wen Bin Ni, Jian Wei Zhao, Yun Hong Liu, Feng Ying Wang, Xing Yin
Atomic Simulation of the Bending Deformation of a Single-crystal
Simply Supported Nano-beam
Wenbin Ni, Jianwei Zhao*,Yunhong Liu, Fengying Wang, Xing Yin
School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210008, P.R.
The molecular model of the single crystal copper beam with face centered cubic (FCC) structure in the present simulation is shown in figure 1b.
Before performed the UDL, the nano-beam was fully relaxed for about 10 ps, giving a thermodynamically stable structure.
The molecular model of the single crystal copper beam with face centered cubic (FCC) structure in the present simulation is shown in figure 1b.
Before performed the UDL, the nano-beam was fully relaxed for about 10 ps, giving a thermodynamically stable structure.
Online since: August 2011
Authors: Steng Tao Zhang, Jin Fang Wu, Lin Liang Yin, Qing Wang
Methionine as corrosion inhibitor of brass in O2-free 1M NaOH solution
Jinfang Wu1,a, Qing Wang2,b , Shengtao Zhang1,c and Linliang Yin1,d
1College of chemistry and chemical engineering, Chongqing University, Chongqing 400044, China
2Chengdu Tundy Water Treatment CO.
The purity of MET was 99%, and its structure is shown in Fig.1.
Fig.1 The molecular structure of MET Weight loss experiments.
The purity of MET was 99%, and its structure is shown in Fig.1.
Fig.1 The molecular structure of MET Weight loss experiments.
Online since: July 2011
Authors: Li Hong Shu, Lin He, Bai Feng Liu
To determine the response of the polyurethane elastomer structure in the external factors as exactly as possible, it is necessary to establish the peculiar equations which describe mechanical property of the polyurethane elastomers.
Divide the finite element graticule of isolator structure which is designed by theoretical method and the three dimensional finite element model whose finite element graticule has been divided is shown in the fig.7.
Rubber Chemistry and Technology[J]. 1993,66(5):754-771
Divide the finite element graticule of isolator structure which is designed by theoretical method and the three dimensional finite element model whose finite element graticule has been divided is shown in the fig.7.
Rubber Chemistry and Technology[J]. 1993,66(5):754-771
Online since: May 2012
Authors: Rui Hua Huang
An example of a structured research on the identification of software engineering principles has been undertaken identified 34 candidate fundamental principles.
Conclusion With the software used rapid development, the structure of software design is increasingly complicated, and the human understanding and control of software systems development often seem unattainable goals.
Traditional engineering fields have their own principles originating from physics, chemistry and mathematics.
Conclusion With the software used rapid development, the structure of software design is increasingly complicated, and the human understanding and control of software systems development often seem unattainable goals.
Traditional engineering fields have their own principles originating from physics, chemistry and mathematics.
Online since: July 2012
Authors: Min Du, Xin Ping Li, Meng Luo
It indicates that treating with appreciate dosage of enzyme, the fiber would be hydrolyzed to a certain degree, and the structure of cell wall would become loose.
But a certain enzymatic treatment destructs the internal structure of the cell wall, looses the crystallization, for this reason that the enzymatic treatment before the refining can effectively reduce the refining energy consumption.
Ghose: Pure & Applied Chemistry.Vol.59 (1987), p. 257-268
But a certain enzymatic treatment destructs the internal structure of the cell wall, looses the crystallization, for this reason that the enzymatic treatment before the refining can effectively reduce the refining energy consumption.
Ghose: Pure & Applied Chemistry.Vol.59 (1987), p. 257-268
Online since: September 2013
Authors: Jin Feng Zhou, Zeng Kai Jin, Mei Fei Zhang, Hui Ying Chen
The following figure shows the structure of the double tables, multi-nozzle digital printer.
Fig.1 The structure of the Double tables, multi-nozzle digital printer The digital printer we use consists of two tables and a few nozzles. 1 refers to the left table.
Image analysis and estimation of porosity and permeability of Arnager Greensand, Upper Cretaceous, Denmark, Physics and Chemistry of the Earth, Part A: Solid Earth and Geodesy, 1999, vol. 24, no. 7, pp. 587-591
Fig.1 The structure of the Double tables, multi-nozzle digital printer The digital printer we use consists of two tables and a few nozzles. 1 refers to the left table.
Image analysis and estimation of porosity and permeability of Arnager Greensand, Upper Cretaceous, Denmark, Physics and Chemistry of the Earth, Part A: Solid Earth and Geodesy, 1999, vol. 24, no. 7, pp. 587-591
Online since: April 2013
Authors: Yaroslav Shpotyuk, Ihor Polovynko
Shipljak, Nanolayered chalcogenide glass structures for optical recording, NanoStructured Mat. 12 (1999) 417-420
Kozdras, Radiation-induced physical ageing of the structure of an arsenic–selenide glass, J.
Physics and Chemistry of Solids 68 (2007) 901–905
Kozdras, Radiation-induced physical ageing of the structure of an arsenic–selenide glass, J.
Physics and Chemistry of Solids 68 (2007) 901–905
Online since: January 2013
Authors: Gen Zong Song, Duo Zhang
Introduction
The layered structure of BSCCO superconductor grains makes it possible for people to get Bi-system wire rods and strips with good crystal orientation by using mechanical deformation and heat treatment, which is also the method of placing Bi(Pb)-Sr-Ca-Cu-O powder into a metal tube (Ag or Ag alloy) for processing and heat treatment.
When the temperature continues to rise to 510˚C(3#), the Bi-2212 phase and Bi-2201 phase are mixed apparently and the main peak of Bi-2201 becomes intense, indicating that such drying temperature makes the surface more uniform and smooth, conducive to the generation of the structure with excellent directivity by Bi-2201.
Acknowledgements This paper was financially funded by the Liaoning Natural Science Foundation (201102060) and also receives careful and patient guidance and assistance from Qiyang, a professor at the research institute of material physics and chemistry of Northeastern University.
When the temperature continues to rise to 510˚C(3#), the Bi-2212 phase and Bi-2201 phase are mixed apparently and the main peak of Bi-2201 becomes intense, indicating that such drying temperature makes the surface more uniform and smooth, conducive to the generation of the structure with excellent directivity by Bi-2201.
Acknowledgements This paper was financially funded by the Liaoning Natural Science Foundation (201102060) and also receives careful and patient guidance and assistance from Qiyang, a professor at the research institute of material physics and chemistry of Northeastern University.
Online since: March 2013
Authors: Shu Jing Liu, Yun Peng Li, Xiu Min Yang, Qing Mei Jiang
After the coumarin was dried and grinded with potassium bromide and pressed into tablets, they was put in the Nicolet Impact-670FTIR spectrometer to analysis of product structure.
Layered zirconium sulfate four water structure is stable; crystal water is not easy emergence.
[1]Chilin A M,Gaiutto C,.Journal of Medicinal Chemistry,1996,42(15):2936-2945 [2]Kostova I P,Manolov I I, Nicolova I N,et al.
Layered zirconium sulfate four water structure is stable; crystal water is not easy emergence.
[1]Chilin A M,Gaiutto C,.Journal of Medicinal Chemistry,1996,42(15):2936-2945 [2]Kostova I P,Manolov I I, Nicolova I N,et al.