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Online since: April 2021
Authors: Susilawati Susilawati, Aris Doyan
Barium M-Hexaferrite (BaM)(BaFe12O19) has a high coercivity field (6700 Oe), a hexagonal molecular structure, and high saturation magnetization (78 emu/g).
Barium m-hexaferrite is a material with a hexagonal molecular structure that is used as a radar wave absorber because of its high anisotropic magneto-crystalline properties and high corrosion resistance [3].
Niewa, Materials Chemistry and Physics, 163, 416–420 (2015)
Online since: March 2015
Authors: Hua Lin He, Qing Chuan Yang, Ren Gui Jiang, De Ming Huang, Ke Hui Qiu
Characterization of Hot Deformation Behavior of TC18 Titanium Alloy Qingchuan Yang1, 2, a, Kehui Qiu1, 2, b*, Rengui Jiang1, 2, c, Deming Huang1, 2, d and Hualin He1, 2, e 1College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China 2Pangang Group Research Institute Co., Ltd, Panzhihua 617000, China a1024005573@qq.com, bqkh2188@163.com, cjiangrg777@sina.com, ddeming_huang03@163.com, e504066245@qq.com Keywords: TC18 alloy, Hot deformation, Flow behavior, Kinetic analysis, Microstructure evolution.
The β transus temperature for this alloy is about 860 °C and the original microstructure shown in Fig. 1 is the perform equiaxed structure.
Cao, Characterization of hot deformation microstructures of alpha-beta titanium alloy with equiaxed structure, J.
Online since: October 2015
Authors: Anika Zafiah Mohd Rus, M.F.L. Abdullah, Nur Munirah Abdullah, M. Izzul Faiz Idris
Peak at 3200 cm-1 is the stretching vibration absorption peak of the hydroxyl group in the structure of graphite/ bio-based epoxy composites, which is from the water molecule.
Furthermore, the functional properties of the composite considerably rely on the conductive structure of graphite.
Mondal, “Review on composite cation exchanger as interdicipilinary materials in analytical chemistry”, Int.
Online since: December 2007
Authors: J. Xiong, B.M. Sun, Yong Xian Liu
(3) Ants leave a kind of chemistry substance called information element on each spur track (i, j) visited.
In order to satisfying certain restrictions, we make the connection between each ant and the data k ij 0k Q Lτ   ∆ =    i f t he kt h ant pass t he spur t r ack bet ween t he t i me t and t +n ot her structure called Tabu which deposits all the visited paths until the time of t and avoiding visiting them again before the n times iterations end (one tour).When a tour is finished, the Tabu is used to calculate the current result, i.e. the length of path tracked by ants, clearing the Tabu after the calculation, then ants may freely select path again.
For the sake of forcing ants to legally tour, satisfied restriction with the data structure called Tabu to control, controlling with the which allows ants to track the path having gotten over until finish touring once.
Online since: August 2009
Authors: Hong Yuan Jiang, Ya Dong Guo, Hui Yan, Yu Hong Xia
Introduction Porous materials such as metal ceramic, plastic and glass have been widely utilized in the industries of metallurgy, petroleum, chemistry, medicine and brew [1, 2].
Initial pressure drop increase linearly with the increase of flow rate, that is: P kQ∆ = (1) The coefficient k is related to metal rubber filter structure parameters and liquid properties.
Moreover, there exists linear relationship between filtration pressure drop and flow rate. 2.2 Filtration Performance Analysis under the contaminated liquid condition 2.2.1 Influence of Porosity on Filtration Performance Small pores shaped by mutual interlaced net space structure inside of the metal rubber which enhanced the disperse action and the collision chance of particulates when contaminated liquid passed through.
Online since: February 2011
Authors: Yi Ming Sun, Man Li, Hu An Li
Preparation and Characterization of a Compatilizer of PP/RTV Blends Yi-ming Suna, Huan Lib, and Man Lic College of Chemistry and Environmental Engineering, Hubei University of Technology, Wuhan, China a y98m@163.com, b 271068319@qq.com, c riemann1989@gmail.com Key words: Polypropylene; RTV; Compatilizer; Interfacial Tension Abstract: A compatilizer PP-g-Vi-PDMS for PP/RTV blends was prepared through a melt extrusion-grafting method.
The rheological properties of polymers can show some clues of the structure changes during the modification process of the polymers [2].
No peak at 3080~2975cm-1, 1645~1640cm-1, 915~905cm-1 can be observed, which demonstrates that the Vi-PDMS with R-CH=CH2 structure have taken part in the reaction.
Online since: April 2005
Authors: P. Li, Xing Dong Zhang, Hong Song Fan, Chun Lin Deng, C.Y. Bao, Y. Cao, X.Y Ling, W.C. Chen, Yan Fei Tan, Xu Dong Li
Some studies have proved that calcium phosphate ceramics with special structure could induce bone formation in soft tissue [2].
The chemistry of the ceramics was analyzed by X-ray diffraction (XRD).
The chemical composition and physical structure of ceramics are the major factors to initiate the osteoinduction of biomaterials and determine their osteoinductive capacity.
Online since: May 2011
Authors: Xiu Pei Yang, Ying Wu, Mei Liu, Ying Yun Lin, Yan Su, Bo Zhang
Preparation, Characterisation of Chitosan Modified Bentonite and Application to Methylene Blue Adsorption Ying Wu1,a, Bo Zhang2,b, Mei Liu1,c, Yingyun Lin1,d, Yan Su1,e and Xiupei Yang1*,f 1 Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province; College of Chemistry and Chemical Engineering, China West Normal University, Nanchong, 637000, China 2Department of Forensic Science, North Sichuan Medical College, Nanchong 637000 P.
Crystal structures of samples were determined at room temperature by performing X-ray diffraction (XRD) on Ultima IV X-ray diffraction spectrometer (Rigaku, Tokyo, Japan) with a Cu Kα target at 40 kV and 50 mA at a scan rate of 2o 2θ min-1.
Scanning electron microscopy SEM photographs were taken with a JSM-6510LV Scanning Electron Microscope (Jeol, Tokyo, Japan) to examine the morphology and surface structure of the adsorbents at the required magnification at room temperature.
Online since: February 2011
Authors: Shinichiro Suye, Wei Wei Li, Pu Liu, Tao Sun, Hai Tao Zheng, Yan Li Ruan
Construction of Biosensor Based on Glassy Carbon Electrode Modified by Composite Film of Multi-Walled Carbon Nanotubes and Poly(ethylenimine) Tao Sun1,a, Haitao Zheng1,b, Wei-wei Li2,c, Pu Liu1,d, Yanli Ruan1,e and Shin-ichiro Suye3,f 1School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300160, China 2School of Information Engineering, Hebei University of Technology, Tianjin 300401, China 3Department of Applied Chemistry and Biotechnology, Graduate School of Engineering, University of Fukui, Bunkyo 3-9-1, Fukui 910-8507, Japan ast19830318@163.com, bzhenght999@hotmail.com, cliweiwei_ic@163.com, dliupu0322@hotmail.com, eylruan@163.com, fsuyeb10@u-fukui.ac.jp Keywords: Multi-walled carbon nanotubes, Oxidation of coenzyme, Dehydrogenase, Biosensor.
The special size and structure give CNTs unique and important mechanic and surface properties[3-6].
The advantages of MWCNTs on analytical performance of NADH are clearly demonstrated by the lower potential, the higher current response and the stability, which should be attributed to the presence of defects in graphite structure, both in the side and at the ends of the nanotubes walls [13].
Online since: June 2010
Authors: Nian Xin Zhou, Shu Ai Wang, Ya Qun He, Chen Long Duan
At the same time, the normal and tangential role of the pendulum upon the specimen also reachs the maximum, so the internal structure of the specimen is with the greatest dissociation.
When the pendulum continues to exercise, the dissociation of the internal structure of the specimen will reduce gradually and lead to different degrees of internal dissociation of the specimen [6].
[6] SU Dan: Physics-Chemistry Method-Physical in parts,Vol. 44(2008), p. 319~326.