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Online since: March 2016
Authors: M.R. Sahar, Hasim Nurhafizah, Md Supar Rohani
The broad peaks can also be ascribed as the mixing structures of TeO3 groups, symmetric TeO4 groups and deformed TeO4 groups.
However, the introduction of more Nd2O3 in the glass system may disturb the structure.
FTIR result show the absorption peak associated to the structure vibration of the sample namely.
Nie, Physical Properties and Optical Band Gap of New Tellurite Glasses Within the TeO2 – Nb2O5 – Bi2O3System, Materials Chemistry& Physics 113 (2009) 407 – 411
Structure and Non Linear Optical Performance of TeO2–Nb2O5–ZnO Glasses.
Online since: October 2018
Authors: Morsy Amin Morsy, Sameh M. Khafagy, H.M. El Sherbini, Y.F. Barakat
In fact, it may give unwanted structure changes.
It was also found that sigma phase (σ) precipitated in the different zones of the structure. σ phase volume fraction was found to increase with increasing the holding time of HT, and its increase is larger in BM.
This is principally a consequence of the less compact lattice of the b.c.c crystal structure.
Sundaresan, Effect of weld metal chemistry and heat input on the structure and properties of DSS welds, Materials Science and Engineering, A358 (2003) 9-16
Online since: January 2014
Authors: Zheng Yang Huang, Qi Hong Cen, Zhen Hua Li, Ying Wu, Lei Zou
The influence of the eutectoid structure of hypoeutectic Fe-C alloys by applying electric current pulse(ECP) is carried out.
It has been documented that ECP can be used to improve the properties of the metallic materials, including refining grain size, improving chemistry homogeneity and eliminating defect.
Online since: December 2015
Authors: Supachok Tanpichai, Suteera Witayakran
The structure of pineapple leaf fibers was found to be changed due to the steam explosion observed by scanning electron microscopy.
Methods of Wood Chemistry: Interscience Publisher; 1967.
Online since: April 2011
Authors: Mohamad Mahmood Rusop, Mohamad Hafiz Mamat, Zuraida Khusaimi
It can be synthesized in various kinds of structures including rod, wire and comb-like-structures due to its hexagonal wurtzite structure and polar crystal surfaces characteristic [2].
The result suggested that the growth of the structures compensate each other where if the growth of rod becomes larger, the growth of the nanowire structure becomes smaller.
The spectra show all structures produced corresponded to the wurtzite structure of ZnO (JCPDS #36-1451).
The XRD spectra shows that all structures produced correspond to the ZnO hexagonal wurtzite structure where the growth along (100) plane dominating almost of the grown nanostructured ZnO films.
Kerr: Journal of Solid State Chemistry Vol. 180 (2007), p. 988
Online since: November 2011
Authors: Yin Zhen Wang, Qun Liang Li, Wu Yue, Ping Jia Yao, Yua Nan Wei
6-O-(10-undecylenoyl)-D-Glucose: Controlled Enzymatic Synthesis and Structure Elucidation by 1H and 13C NMR Yinzhen Wang 1, Qunliang Li1,a, Wu Yue 1,2 , Pingjia Yao 2,b, Yuanan Wei2, c 1 College of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, P.
The molecular weight of the UA sugar ester was determined by mass spectroscopy, and the molecular structures were determined by 1H and 13C NMR.
Results and discussion Determination of the chemical structure of the mono-ester product.
Online since: August 2010
Authors: Jacqueline M. Cole, Ze F. Weng
UK Department of Chemistry 2 and Physics3 , University of New Brunswick, P.
This new approach employs data-mining, using the world's repository of all published organic crystal structures as a representative set of chemical space.
This database hosts the world's repository of all published organic and organometallic crystal structures.
For the purposes of this study, only the organic crystal structures were of interest, which comprise around 125,000 entries in this database.
One should be aware, however, of the caveat that crystallization is a mandatory step in obtaining the crystal structure of a material.
Online since: October 2022
Authors: Tang Liszen, Anis Syamimi Johari, Khairul Anuar Shariff, Zuryati Ab. Ghani
Sintering temperature can affect the properties of ceramics through alteration of the particle structure and crystalline phases [5].
Specimen sintered at 1200°C [Fig. 2 (a)] shows the irregular structure on the surface morphologies of the sample.
The void and loose particle structure can be observed.
Smaller microstructure provides better mechanical strength as the structure become closely packed and dense.
Hussain, Synthesis and characterization of low density calcia stabilized zirconia ceramic for high temperature furnace application, Materials Chemistry and Physics, 100 (2–3), (2006) 324–328
Online since: September 2015
Authors: Theodor Staněk, Petr Sulovský
The basic component of the proposed binders are clinkers with phosphorus incorporated into the structure of clinker silicates, mixtures of cement with ash containing hydroxylapatite and belite-rich clinkers activated with sulfate anions.
The base of the binders for stabilization of cationic and certain anionic contaminants will be clinkers with phosphorus incorporated into the structure of clinker minerals.
Hydration of such binders results in formation of phases with the apatite structure, which is known to be able to immobilize hazardous elements [4, 5] and belite and alite structures for formation of binding hydrosilicates, ensuring the physical compactness of the hydrated matter and also the fixation of some toxic elements.
Tashiro, The effect of several heavy metal oxides on the hydration and the microstructure of hardened mortar of C3S, in: Proceedings of the 7th International Congress of Chemistry of Cement, Editions Septima, Paris, vol. 11 (1980) pp 1137
Online since: September 2017
Authors: Jun Yang, Chuan Dong, Wan Xin Jia, Dong Tao Lu, Shao Min Shuang
Facile Synthesis of Chitosan Modified Fe3O4 Magnetic Nanoparticles for Azo Dye Amido Black 10B Adsorption Wanxin Jia1,a, Dongtao Lu1,b, Shaomin Shuang1,c, Jun Yang2,d and Chuan Dong1,e* 1Institute of Environmental Science, School of Chemistry and Chemical Engineer, Shanxi University, Taiyuan, Shanxi, 030006, China 2Department of Mechanical and Materials Engineering, University of Western Ontario, London, Ontario, N6A 5B9, Canada a394141039@qq.com, b346799439@qq.com, csmshaung@sxu.edu.cn, djyang@eng.uwo.ca, edc@sxu.edu.cn Keywords: Magnetic chitosan nanoparticles; Amido black 10B; Adsorption; Desorption.
Structure of amido black 10B.
The characteristic peaks at 2θ=30.3 °, 35.7°, 43.4 °, 53.92 °, 57.28°, and 62.88 ° are ascribed to the cubic spinel structure of Fe3O4 crystals indicated that the magnetic nanoparticles have been well embedded in polymer matrixes.
Chemistry, 161 (2003) 87-93
Choi, Core-shell-structured cross-linked poly(glycidyl methacrylate)-coated carbonyl iron microspheres and their magnetorheology, J.