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Online since: July 2004
Authors: Claudio Shyinti Kiminami, Walter José Botta Filho, Claudemiro Bolfarini, C. Triveño Rios
Analyzing the microstructure of figure 1a two regions are observed: A, which exhibits a very fine cellular structure with a spacing of ~500nm, and B, consisting of columnar coarse cellular structure.
(a) fine cellular structure, and (b) dendritic structure, (c) coarser cellular structure, (c) equiaxed dendritic structure, and (d) magnification of figure1d, showing Al-Si eutectic acicular Si.
Notwithstanding, the morphology and the chemistry of the intermetallic phases observed in the powders are not altered in the deposit.
X-ray diffraction patterns of powders and deposit samples presented, basically, α-Al and Si phases in the structure.
Mondolfo, Al Alloys: Structure and properties, London: Butterworths, 1976
Online since: October 2014
Authors: Sun Jae Kim, Aryan Azad, Eul Noh, Kang Seop Yun, Hee June Jeong, Sang Chul Jung, Woo Seung Kang, Nguyen Thai Moc
In this study Fe2O3/Fe doped TiO2 photocatalysts were compared with Fe-doped TiO2 and TiO2 structures by using layer by layer-self assemble (LBL-SA) method and dipping process on FTO glass.
Therefore, doping metal iron in TiO2 can change the transmission of photogenerated electrons and holes, and adjust their distribution state or the energy band structure.
The transmission of the photogenerated electrons and holes, could be changed by doping metal iron in TiO2, and adjust their distribution state or the energy band structure.
Gao, Decrease in the photoactivity of TiO2 pigment on doping with transition metals, Journal of Photochemistry and Photobiology A: Chemistry. (1992) 367–375
Kim, Enhanced Water Splitting by Fe2O3-TiO2-FTO Photoanode with Modified Energy Band Structure, The Scientific World Journal (2013) 723201-723209
Online since: August 2012
Authors: Anna Boczkowska, Maciej Dyzia, R. Kozera, Anna J. Dolata, Paulina Chabera, Artur Oziębło
Ceramic preforms were formed by method of copying the cellular structure of the polymer matrix.
Porous aluminum oxide preforms were formed by the method of copying the cellular structure of the polymer matrix [18].
In the structure of the composites the presence of silicon (Fig. 4b) and phases containing copper, nickel and magnesium has been identified (Fig. 5).
Śleziona: “Manufacture and structure of infiltrated of Al-carbon fibres composites” Archives of Mechanical Technology and Automation Vol. 30, no 3, pp 11-18, 2010
Śleziona: Structure of Al-CF composites obtained by infiltration methods, Archives of Foundry Engineering, Vol. 11, Special Issue 2, pp. 23-28, 2011
Online since: November 2013
Authors: Bin Bin Luo, Yi Min Zhu, Jin Yue Mi
The structure of DZF-3 synthesized in the paper is verified by FT-IR and 1H-NMR.
Characteristic peaks can be used to analyze different information of the organic functional groups, so as to know the essential structure of the material.
It not only can be used to master the molecular structure of samples, but also be applied to identify formation of a desired product in complex separations or less sample cases[5].
Characterizations of DZF-3 collector structure FT-IR analyses.
Lev: Substituent Constants for Correlation Analysis in Chemistry and Biology.
Online since: May 2015
Authors: Chantara Thevy Ratnam, Sahrim Haji Ahmad, Noraiham Mohamad, Jeeferie Abd. Razak, Juliana Yaakub, Mohd Edeerozey Abd Manaf, Muhammad Zaimi Zainal Abidin, Mohd Asyadi Azam
From the IR spectroscopy, the covalent treatment on GNPs was occurred through the dehydration mechanism while hydrogen bonding in the multiple structures of –OH that associated to the carboxylic acids was obviously involved for non-covalent treatment of GNPs.
In addition, the presence of a new peak at 2322.00 cm-1 for non-covalent treated GNPs confirms the interaction between PEI and GNPs surface through hydrogen bonding that presents in the multiple structures of –OH associated to the carboxylic acids.
The morphological view of uGNPs through TEM reveals the flexibility of thin carbon sheets that can be inferred from the highly crumpled structure.
The covalent treated GNPs-ATPS platelets were experienced a noticeable lateral size reduction in their structure which indirectly improved the exfoliation of the platelets.
Yu, The effect of surface chemistry of graphene on rheological and electrical properties of polymethylmethacrylate composites, Carbon, 50 (2012) 5117–5125
Online since: January 2018
Authors: Victor Gromov, Yurii F. Ivanov, Vassily E. Kormyshev, Sergey Konovalov, Rong Shan Qin, Olga A. Semina
The lamellar structure is clearly defined.
The high dislocation density and lamellar morphology of interlayer structure are indicative of the shear mechanism of a-phase formations with production of ultra-fine martensite structure.
The characteristic feature of the quenched structure is a coarsening (in comparison with the structure of the layer surfaced with wire №2) martensite structure.
Osman Yilmaz, Microstructure and wear рrореrtiеs of AISI 1020 steel surface modified bу HARDOX 450 and FеВ powder mixture, Protection of Metals and Physical Chemistry of Surfaces, 50 (2014) 94–103
Gromov, Quenched structural steel: structure and mechanisms of hardening.
Online since: August 2018
Authors: Wei Qiang Wang, Y.H. Piao
(c) Micro-structured surface was formed by lithography process.
(a) and (b) micro post structured surface.
(a) Micro post structured surface.
(b) Microgroove structured surface.
Journal of Physical & Colloid Chemistry 53.9(1949):1466-1467
Online since: April 2015
Authors: Xiao Yan Wang, Xiao Long Qu, Zheng Fu Zhang, Jin Cheng
The X-ray diffraction(XRD) results showed that the precursor can be indexed by a hexagonal β-Ni(OH)2 structure.
Recently, manganese based layer-structured material, LiNi0.5Co0.2Mn0.3O2 has been shown to be one of the most promising alternative materials, since their electrochemical and safety characteristics are comparable or superior to LiCoO2[5-9].
It could be observed that the XRD pattern of the powder is almost consistent to the typical fingerprint of M(OH)2 (M =Ni, Co, Mn) structure.
Wang, Layered Li-Ni-Co-Mn-O as Cathode Materials for Lithium Ion Battery, Progress in Chemistry. 19(2007) 1313-1321
Sato, Structure, morphology and electrochemical properties of LiNi0.5Mn0.5-xCoxO2 prepared by solid state reaction, Journal of Power Sources. 148(2005) 85-89
Online since: January 2010
Authors: De Lin Sun, Chuan Sun Wu, Xin Tan, Jin Yun Xue, Lian Xing Zhang, Pei Pei Liu
In Indian, there are much cooperating space in agriculture, chemistry, medicine food manufacture, textile, information, biological technology and other areas between college and enterprises.
It is an elite developing pattern that pays equal attention to knowledge ,ability, quality, which means that under the guidance of meta-education ,universities construct knowledge, ability and quality structure and the method of realizing these structure.
Many traditional industry talents, few informational talents, the conflict of talent resources" industrial structure is conspicuous.
Few pioneering talents, severe unbalance of talent resources" conscious structure.
-Many presewing talents, few innovative talents, severe unbalance of talent resources" ability structure. 6.2 The professional scope is very narrow , universities lack of independent power Dividing majors so subtle that narrows students" knowledge scope and leads to insensible professional structure.
Online since: August 2019
Authors: Muhammad Rizal Fahlepy, Subaer Subaer, Arini Tiwow Vistarani, Yuyu Wahyuni, Muhamma Andhika
Hematite is ferromagnetic materials with centralized rhombohedrally hexagonal structure close-packed oxygen lattice [19].
Preparation and formation mechanism of nano-iron oxide black pigment from blast furnace flue dust, school of chemistry and chemical, Tianjin University 39 737 – 747. [30] Cuenca J A, Bugler K, Taylor S, Morgan D, Williams P, Bauer J, Porch A. 2016.
Nano-Structures & Nano-Objects. 2 19-27 [36] Tiwow V A, Arsyad M, Palloan P and Rampe M J. 2018.
The Iron Oxides: Structures, Properties, Reactions, Occurences and Used (Weinheim: Wiley). [38] Bemana H and Rashid-Nadimi S. 2017.
Journal of Molecular Structure. 993 167-176