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Online since: August 2015
Authors: Daria Mul, Elena Kornienko, Tatyana Zimoglyadova, Ekaterina Drobyaz, Ilija Ivanchik, Vladimir Bataev
., Novosibirsk, 630099, Russia a zimogliadovatatiana@gmail.com Keywords: surface modification, non-vacuum electron beam cladding, structure, microhardness.
Modified layers characterized by the gradient structure and consist of dendritic grains and a eutectic located at the grain boundaries.
Perovskaya, Formation of strengthening coatings fused by relativistic electron beam, Physics and chemistry of materials treatment. 5 (2005) 29-41
Kuzmin, Structure and properties of self-fluxing coating, obtained by air-plasma spraying, Applied Mechanics and Materials. 698 (2015) 405-410
Perovskaya, Structure and properties of coatings, containing chrome, obtained by non-vacuum electron beam cladding at the air atmosphere, Met.
Online since: October 2011
Authors: Navid Mirjordavi, Fateme Fayyazbakhsh, Mehran Solati-Hashjin, M.A. Shokrgozar, S. Bonakdar, Y. Ganji, S.A. Ghavimi, P. Khashayar
Both specimens are in layer structure and also nano-scale.
Therefore, the layer structure was barely visible.
Also because of the lack of cationic arrangement the crystal structure had been has a semi-hexagonal morphology.
(Editors), "Layered double hydroxides: structure and bondings", Springer, 200
D., "Intercalation chemistry of layered double hydroxides: recent developments and applications", journal of materials chemistry, V. 12, 3191–3198, (2002)
Online since: July 2015
Authors: Eva Vejmelková, Monika Čáchová, Kirill Polozhiy
Pore Structure and Hydric Characteristics of Renders with Blended Binder ČÁCHOVÁ Monika1, a *, VEJMELKOVÁ Eva1, 2, b and POLOZHIY Kirill2, c 1Czech Technical University in Prague – Faculty of Civil Engineering – Department of Materials Engineering and Chemistry, Thákurova 7, 166 29 Prague 6, Czech Republic 2University Centre for Energy Efficient Buildings, CTU in Prague, Třinecká 1024, 273 43 Buštěhrad, Czech Republic amonika.cachova@fsv.cvut.cz, beva.vejmelkova@fsv.cvut.cz, ckirill.polozhiy@fsv.cvut.cz Keywords: Plaster, pozzolana, lime, basic physical properties, pore system characteristics, thermal properties.
Measurement methods, such as basic physical properties (water vacuum saturation and helium pycnometry), pore structure characterization (mercury porosimetry), transport of liquid water and water vapor, and measurement results are in details described and discussed hereafter.
Online since: November 2010
Authors: Yan Hua Zhu, Jing Jing Ma, Qing Yang
One-Step Alcohothermal Synthesis and Growth Mechanism of NiSe2 Porous Octahedron Yanhua Zhu2,a Jingjing Ma2,b and Qing Yang1,2,c 1Hefei National Laboratory for Physical Science at Microscale, University of Science and Technology of China, Hefei 230026, China 2Department of Chemistry, University of Science and Technology of China, Hefei 230026, China azhuyh@mail.ustc.edu.cn, bmajing425@mail.ustc.edu.cn, cqyoung@ustc.edu.cn Keywords: NiSe2, Porosity, Alcohothermal synthesis, Crystal structure Abstract.
Traditionally, creating such materials commonly used a procedure involving self-sacrificing template [3], in which the sacrificial template with a specific porous structure.
However, the template methods usually suffered from complicated posttreatment such as acid etching [4], high temperature calcinations [5], which lead to the collapse of the porous structures and the introduction of impurities.
Online since: October 2016
Authors: Tadeusz Groń, Elzbieta Tomaszewicz, Henryk Duda, Piotr Urbanowicz, Magdalena Piątkowska, Marta Pawlikowska
Uniwersytecka 4, 40-007 Katowice, Poland 2West Pomeranian University of Technology, Department of Inorganic and Analytical Chemistry, Al.
Piastów 42, 71-065 Szczecin, Poland aPiotr.Urbanowicz@us.edu.pl, bmagdapiat@zut.edu.pl, cmartapawlikowska@zut.edu.pl, dtomela@zut.edu.pl, eHenryk.Duda@us.edu.pl, fTadeusz.Gron@us.edu.pl Keywords: scheelite structure; UV-vis-NIR spectroscopy; dielectric spectroscopy Abstract.
Fuks, New cadmium and rare-earth metal molybdates with scheelite-type structure, Mater.
Typek, New scheelite-type Cd13xxGd2x(MoO4)1-3x(WO4)3x ceramics – their structure, thermal and magnetic properties, Ceram.
Online since: February 2011
Authors: Yu Wen Liu, Wei Zhang, Hong Mei Wang, Jing Na Jiang, Bin Sun
The crystal structure, morphology and electrochemica1 properties of LiFePO4/C were analyzed by XRD, SEM and galvano static charge-discharge method.
However, it is difficult to attain its full capacity because its electronic conductivity is very low, and diffusion of Li+ ion in the olivine structure is not easy.
Crystal structures of the synthesized materials were identified with X-ray diffraction with Cu Kα radiation.
All the patterns can be indexed to a single-phase material having an orthorhombic olivine-type structure (space group Pmnb[7]), which are the same as the standard value.
Conclusions Carbon coating in LiFePO4/C composite materials do not change the crystal structure of LiFePO4.
Online since: March 2010
Authors: Xiang Ping Jiang, Zi Yi Feng, Mei Lin, Chao Chen, Kai Zheng Shu
Effects of Co 3+ addition on the phase structure, dielectric and piezo- electric properties of NBT-xC were investigated.
The X-ray diffraction suggested that all specimens were rhombohedral perovskite structure.
The crystalline structure of sintered samples was identified by X-ray diffractometer (D8 Advanced, Bruker axs).
The XRD patterns of the samples in the 2θ ranges of 45-48 degree suggest the structure of all samples exhibits rhombohedral phase featured with no splitting of the peaks, which means the addition of Co 3+ does not change the crystal structure of the NBT-xC ceramics.
Base on the principle of crystal chemistry, Co 3+ is considered to go into B-site of the perovskite to substitute Ti4+.
Online since: July 2014
Authors: Feng Lin, Hong Da Cao, Hong Bo Liu, Wu Ying Zhang
The difference of structure of graphene oxides by two preparation methods was compared.
The structure and properties of graphene oxide are different by those preparation methods.
Then, it is important that the structure and properties of graphene oxide by different preparation methods are characterized.
The structure of graphene oxide by two different preparation methods was significant difference.
The results indicated that the structure of graphene oxides prepared by ultrasonic dispersion and thermal expansion was different.
Online since: April 2019
Authors: Dong Yuan, Xing Wen Zheng, Cheng Qian, Jin Long Fan, Liang Qin Zhou
Structure and morphology of Mg-Al-HTLC was obtained with X-ray diffraction (XRD), scanning electron microscope (SEM) and Fourier transform infra-red spectroscopy (FTIR).
XRD results reveal that the Mg-Al-HTLC has high crystallinity and perfect layered structure.
It is six-coordinated to hydroxyl groups forming brucite-like sheets which stack to create a layer structure [7,8].
The characterization of SEM and XRD shown that pure Mg-Al-HTLC with good hexagonal structure was obtained.
Acknowledgement This study was Supported by the Opening Project of Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education (LYJ1704) and the Opening Project of Key Laboratories of Fine Chemicals and Surfactants in Sichuan Provincial Universities (2017JXY01, 2016JXY03) Reference [1] Kim T W, Sahimi M, Tsotsis T T.
Online since: July 2011
Authors: Li Li Chen, Zu Min Qiu, Zhen Zhong Huang, Yan Fen Wu
Micro-analytical data, elemental analysis, 1HNMR and IR-spectra were used to confirm the structures.
FT-IR spectra was used to analyze the structure of the complex.
Abe: Chemistry Letters, Vol. 33 (2004) No.9, pp. 1144-1145
Wei: Chinese Tournal Of Inorganic Chemistry, Vol. 24 (2008) No.4, pp.520-526.In Chinese
Chen: Study on Composition and structure of Sulfoxide Pd(II)(Ph.D., Shanghai metallurgical research institute of the Chinese academy of sciences, China 1994), pp.8-12