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Online since: July 2006
Authors: Viktor Varyukhin, Alexey Reshetov, Dmitry Orlov, Alexander Korshunov, Irina Korotchenkova, Irina Vedernikova, Lev Polyakov, Sergey Synkov, Alexandr Synkov, Yan Beygelzimer
UFG structure with an average grain size of ~0.3 µm was produced in Cu billets by TE processing.
Features of Twist Extrusion: Structures The response of the copper structure on twist extrusion processing.
After three TE passes, the deformation structure became more uniform but single cells were still observed.
Overall, the structure consisted of shear bands oriented in two planes of the subgrains.
Varyukhin (eds.), Nanostructured materials by high pressure severe plastic deformation, NATO Science Series, II Mathematics, Physics and Chemistry - V.212 (2006), p.253 [16] A.I.
Online since: June 2014
Authors: Wirach Taweepreda, Saengchao Thongseenuch, Krisda Suchiva
Rheological Behavior Characterization of Natural Rubber Containing Different Gel Saengchao Thongseenuch1,a*, Wirach Taweepreda1 and Krisda Suchiva2 1Department of Materials Science and Technology, Faculty of Science, Prince of Songkla University, 90112 Hat-Yai, Songkhla, Thailand 2Department of Chemistry, Faculty of Science, Mahidol University, 10400, Rama 6 Road, Bangkok, Thailand a*saengchao.t@psu.ac.th Keywords: Natural rubber, molecular structure, gel, first harmonic rheological properties Abstract.
However, the effects of molecular structure of NR on rheological behavior have been less well understood since the molecular structure of NR has not been fully characterized even today.
This believed that rubber samples except DPAETE remained branched structure but different in level.
Thus this result filled up the knowledge in natural rubber structure.
Tangpakdee, Structure Characterization of Natural Rubber, Kautsch.
Online since: June 2011
Authors: Wei Xu, Qiu Feng An, Wei Xu
Synthesis of Novel Fluorosiloxane Polymer/Silica Hybrid Nanocomposites and Superhydrophobic Cotton Surface from It Lifen Hao a, Qiufeng An, Wei Xu The Key Laboratory for Aids Chemistry and Technology of Light Chemical Industry of Ministry of Education, Shaanxi University of Science and Technology, Xian, 710021, P.
Chemical structures of PFAMS-SiO2 film on cotton fabrics were characterized by Axis Utral X-ray photoelectron spectrum (XPS) made in Kratos, UK.
The faint N-H group absorption band at 1590 cm-1 and all of the above results indicate that molecule has the due structure.
At lower magnification (×50) the as-received cotton fabric has a tightly woven, fibous structure with micro-level roughness and it shows some concaves on relative smooth surface of single root fabric at higher magnification (×8000).
It is well konwn that wetability of a superhydrophobic solid surface is determined by its chemical compositions and geometry micro-structures [11].
Online since: September 2013
Authors: Lan Tu Ya Wu
Synthesis and Luminescent Properties of Red Phosphor BaY2O4: Eu3+ for White Light-Emitting Diodes Wu Lan-tu-ya * College of Life Science and Chemistry, Hulunbeier University, Hailar 021008 wulanty1968@163.com Keywords: BaY2O4: Eu3+, Citric acid sol-gel method, Red phosphor Abstract.
The structure, morphology and composition of the red phosphor were characterized by X-ray diffraction, scanning electron microscopy and infrared spectroscopy.
The X-ray diffraction (XRD) patterns of phosphor BaY2O4: Eu3+powder in order to determine the phase and the structure of samples are presented in Fig. 1.
This result indicates that a small amount of Eu3+ doping did not affect the structure of BaY2O4 host materials.
Journal of Solid State Chemistry. 180(2) (2007), p. 619 [14] Strek W, Deren′P, Bednarkiewicz A, Zawadzki M, et al.
Online since: January 2014
Authors: Ai Mei Yang, Lin Yang, Rui Wu, Wei Jie Guo, Xiao Long Shi, Han Han, Yun Men
Eight compounds were isolated from the ethanol extract of G. algida Pall. the structure of these compounds were identified as: oleic acid(1), linoleic acid(2), octacosanoic acid(3), β-sitosterol(4), 2,3-dihydroxybenzoic acid ethyl ester(5), n-butyl isobutyl phthalate(6), daucosterol(7), 5,8-dimethoxy furocoumarin(8).
These structures were identified by NMR MS IR and other spectroscopic techniques.
Sun: Chemistry of Natural Compounds, Vol. 49 (2013), in press
Yang: Analytical Chemistry Handbook, the Seventh Fascicle.
Online since: January 2014
Authors: Guang Yang, Jun Pi, Zi Qian Chen, Fei Ye
Reflective microprism is a kind of special structure using the optical principle, which can put the light back reflection return to the light source, and common edge size around 60 to 100 um.
Reflective products of micro edge structure are applied widely.
Study on ultrasonic electroplating/nano silicon carbide composite coating structure [J].
Journal of Physical Chemistry.1996, 100(50):19525-19532
Ultrasound and Electroplating [J].Chemistry in Britain, 1990, 26(3):251-254
Online since: July 2013
Authors: Rakshit Ameta, Pinki B. Punjabi, Sanyogita Sharma, N.P.S. Chauhan, Sangeeta Kalal
Chauhan3 and Sangeeta Kalal1 1Department of Chemistry, M.
INDIA 2Department of Chemistry, PAHER University, Udaipur – 313003 (Raj.)
The science of chemical phenomena in the environment is called “environmental chemistry”.
Photochemistry is the chemistry of excited electronic states of molecules.
Mechanochemistry can be seen as an interface between chemistry and mechanical engineering.
Online since: June 2018
Authors: Saboktakin Rizi Mohsen, Javadinejad Hamidreza, Aghababaei Eiman, Hossein Naseri, Hosseini Sayed Ahmad
Furthermore, thermal stability of the porous films can be referred to the kinetics of thermal decomposition and a fibrous structure obtaining after the decomposition of the decomposition [49]. 3.
FA has a hexagonal lattice structure [50].
Tompkins, Chemistry of the Solid State, in: W.E.
Macromolecular Chemistry and Physics, vol. 208, no. 14, pp. 1592–1597, Jul. 2007
[66] S.Vyazovkin, on the phenomenon of variable activation energy for condensed phase reactions, New Journal of Chemistry, 24 (2000) 913-917
Online since: December 2019
Authors: Robert A. Turusov
“Physics and chemistry of materials processing” LIYAF, L-d, pp.75-84
Physics and chemistry of materials processing. 5 (1979) 87-94
Physics and chemistry of materials processing. 2 (1980) 108-115
Turusov, Elastic and temperature behavior of a leyered structure.
Mechanics of composite materials and structures. 22 (3) (2016) 430-451
Online since: July 2017
Authors: Aleksandr P. Amosov, Evgeniy I. Latukhin, Vladislav A. Novikov, P.A. Petrov, E.A. Amosov, A.Yu. Illarionov
The MAB-phases are similar with the MAX-phases of ternary carbides in the atomic structure of alternating metal and boride layers and have also unique properties that are inherited from the binary borides.
However, to realize this possibility, it is necessary to conduct a more detailed study of composition, structure and properties of the products of SHS with the MAX-phase modified with boron.
Gusev, Phase equilibria in M–X–X' and M–Al–X ternary systems (M = transition metal; X, X' = B, C, N, Si) and the crystal chemistry of ternary compounds, RUSS CHEM REV, 65 (5) (1996) 379–419
Shchukin, Formation of nanolaminate structures in the Ti–Si–C system, Int.
Luchinsky, Chemistry of Titanium, Chemistry, Moscow, 1971.