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Online since: April 2009
Authors: Xiao Yan Lin, Xue Gang Luo, Xiu Rong Zhuo, Chang Gang Xu
Lignin-quaternary Adsorbent: Synthesis, Characterization and Application for 2, 4, 6-Trinitrotoluene (TNT) Adsorption Zhuo Xiurong a, Luo Xuegang b, Lin Xiaoyan c* , Xu Changgang d School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, China a zhuoyin636412@163.com, blxg@swust.edu.cn, cxylinchwei2005@yahoo.com.cn, dchanggang_xu@hotmail.com Keywords: Lignin-quaternary adsorbent; Adsorption capacity; 2, 4, 6-Trinitrotoluene Abstract.
Lignin is the second most abundant natural raw material and nature's most abundant aromatic polymer.
Several articles have reported blending lignin with poly (vinyl alcohol) (PVA) to provide composite films with good material performance attributed to the formation of strong intermolecular interaction in them [5, 6].
Lee: Journal of Membrane Science Vol. 109 (1996) p.257-265.
Online since: December 2013
Authors: Qing Xin Ren, Xiong Zhao, Xu Kuan Li, Tai Cheng, Xiao Lian Long
Several key issues in the FE modeling are introduced briefly, i.e. the material models for steel and concrete, interface model to simulate the steel and concrete interface, element types, meshes, and boundary conditions.
The main objectives of this research are as follows: first, to develop a FEA model on elliptical CFST members under pure bending; second, to perform flexural mechanism analysis on elliptical CFST members using the FEA model. 2 Finite element modeling The flexural analysis is conducted in ABAQUS/Standard module where both material and geometric nonlinearities are considered. 2.1 Material models (1) Steel Elastic–plastic model is used to describe the constitutive behavior of steel.
A B C Fig. 6 Stress distribution of steel tube Neutral axial A Mid-span secion Neutral axial B Mid-span secion Neutral axial C Mid-span secion Fig. 7 Stress distribution of concrete Acknowledgments The research reported in the paper is part of Project 51208135 supported by the National Natural Science Foundation of China (NSFC), the Science and Technology Project of the Ministry of Housing and Urban-Rural Development of China (NO. 2009-K2-11), and as well as the Liaoning Province Education Departmental Scientific Research Foundation of China (No.
Journal of Constructional Steel Research. 67 (2011) 437-452
Beijing: Science Press; 2007.
Online since: November 2015
Authors: Octavian Lupescu, Mădălina Popa, Cristian Ulianov, Ana Bădănac
Tool durability can be increased by various coating methods by the depositing in a vacuum of some different materials which achieve the necessary effect.
Schulz et al [5] stated that cutting edges of cutting tools coated with different materials by chemical vapour deposition (CVD) and or by physical vapour deposition (PVD) processes can show an increase of the service lifetime of tools by a factor of ten compared to uncoated tools.
Ionization of the material is obtained by passing the material evaporated by plasma luminescent discharge between the evaporation source and the substrate.
Future research includes: diversification of the qualitative types of cutting inserts coated with thin layer of titanium and the study of their behavior in the cutting processes, the depositing of thin layers of other types of filler materials and the analysis of their influence on the hardness and durability of the cutting tools.
Tegeder, Graded coatings for thermal, wear and corrosion barriers, Journal of Materials Science and Engineering.
Online since: May 2014
Authors: Panu Leelatawonchai, Teerawat Laonapakul
The use of biogenic materials to produce naturally based biomaterials has been widely studied.
Hydroxyapatite can be used to create new bone materials that directly connect to natural bone surfaces without causing inflammation, reaction, or resistance.
Additionally, uses of biogenic calcium sources have been developed to produce materials for medical purposes.
Hak, Extraction of pure natural hydroxyapatite from the bovine bones bio waste by three Different methods, Journal of material processing technology. 209 (2009) 3408-3415
Marc, Structural Characterization and mechanical behavior of a bivalve shell (Saxidomus purpuratus), Materials Science and Engineeing : C . 31 (2010) 1-5
Online since: April 2015
Authors: Song Ming Han, Wei Li, Yue Ma, Xin Bao Zhao, Shu Suo Li, Sheng Kai Gong
Materials Science Forum Vol. 788 (2014): 426-432
Journal of Alloys and Compounds 592 (2014): 164–169
Materials Science and Engineering: A, Volume 300, Issues 1–2, 28 February 2001, Pages 52-60
China Materials Conference 2012
Materials Science&EngineeringA580 (2013)21–35.
Online since: December 2012
Authors: Bing Chao Li, Guo Hua Zhang, Jian Xin Zhang, Zuo Shan Wei, Zeng Jian Feng, Wei Cai, Jian Jun Cui
Effect of Fiber Volume Fraction on Low Cycle Fatigue Behavior of Al2O3f/Al-Si Composites Jian-jun CUI1,a, Bing-chao LI1, Guo-hua ZHANG2,3, Jian-xin ZHANG1,b, Zuo-shan WEI3, Zeng-jian FENG3, Wei CAI2 1School of Materials Science and Engineering, Shandong University, Jinan 250061, China 2School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China 3Shandong Binzhou Bohai Piston Co., Ltd, Binzhou 256602, China xcui@sdu.edu.cn, jianxin@sdu.edu.cn Keywords: Metal matrix composites; Low cycle fatigue; Tensile; Volume fraction; Fracture Abstract: The tensile and low cycle fatigue tests were carried out on alumina short fibers reinforced Al-Si piston alloy composites (Al-Si MMCs).
Al-Si matrix MMCs which are reinforced by alumina short fibers have been widely applied to piston materials [3-5].
Material and methods The short fiber reinforced MMCs used in this study were Al-Si piston alloy (Table 1) reinforced with three volume fractions of 10, 17 and 25 vol.% alumina short fibers.
This meant there was an optimal volume fraction of alumina short fibers for the Al-Si MMCs piston material.
Mater Sci Engng A 148 (1991) 85–92 [7] Hille D V, Bengtsson S, Warren R, Quantitative metallographic study of fibre morphology in a short alumina fibre reinforced aluminium alloy matrix, Composites Science and Technology, 35(1989)195-206 [8] Yasuo O, Kiyotaka M, Takashi M, Mitsushi W, Effects of volume fraction of alumina short fibers on high cycle fatigue properties of Al and Mg alloy composites, Materials Science and Engineering A 15(2007)230-236 [9] Fang C K, Fang R L, Weng W P, Chuang T H, Applicability of Ultrasonic Testing for the Determination of Volume Fraction of Particulates in Alumina-Reinforced Aluminum Matrix Composites, Materials Characterization, 43(1999)217-226 [10] Jorce M R, Styles C M, Reed P A S, Elevated temperature short crack fatigue behaviour in near eutectic Al–Si alloys, International Journal of Fatigue 25 (2003) 863–869 [11] Ding H Z, Hartmann O, Biermann H, Mughrabi H, Modelling low-cycle fatigue life of particulate-reinforced metal-matrix composites, Mater
Online since: November 2012
Authors: Zhe Feng Wang, Yao Yang Hu
When plate thickness increases to 100mm, residual stress has already been very close to material’s yield limit
Materials Science Engineering A.
Materials Science Engineering A.
MATERIALS SCIENCE & TECHNOLOGY.
Journal of Central South University (Science and Technology).
Online since: October 2013
Authors: You Bin Lai, Yu Hui Zhao, Fu Yu Wang, Wen Chao Han, Ji Bin Zhao, Wei Jun Liu
Titanium alloy laser additive manufacturing technology integrates the latest achievements in the field of mechanical engineering, CAD / CAM, CNC technology, laser technology and materials science.
In the plane stress field, the material flow caused by indentation pressure will cause the material relaxation deformation (the material shortened in tensile stress zone, and elongated in compressive stress zone).
Zhang, X.M Wang: Chinese Journal of Lasers, Vol. 36(2009) No.5, pp.3204-3209
Huang: Rare Metal Materials and Engineering, Vol. 33(2004) No.12, pp. 1304-1307
Huang: Rare Metal Materials and Engineering, Vol. 38(2009) No.5, pp. 774-778
Online since: July 2011
Authors: De Qing Chu, Yun Na Dong, Zhi Ri Yu, Liang Ci Su, Li Min Wang
Preparation, Characterization and Catalytic Properties of the Different Types of Nanometer Crystal Manganese dioxide Deqing Chu1,a, Yunna Dong1,b, Zhiri Yu1,c, Liangci su1,d, Limin wang2,e 1 Faculty of Environment and Chemical Engineering and the country emphasis lab of middle empty fibre film material and film engineering, Tianjin Polytechnic University,Tianjin,300160, China 2 Faculty of Material Science and Engineering, Tianjin Polytechnic University, Tianjin,300160, China achu2dq@tjpu.edu.cn, bdongyunna@163.com, cyuzhiri@126.com, dliangcisu@163.com,ewanglm326@nenu.edu.cn Keywords: nanometer manganese dioxide; catalytic degradation; methylene blue.
Manganese dioxide is an important metal oxide material which is widely applied in environment field, for example, In ozone decomposition, organic pollutants oxidation, NO and NO2 decomposability[1], MnO2 has high catalytic activity.
Nano material is one of the most revolutionary materials for its unique properties brought by its scale.
Takahashi, Journal of Molecular Catalysis A: Chemical, Vol. 238, (2005), p.78
Online since: October 2013
Authors: Zsuzsa Balajti, József Ábel
Introduction In manufacturing practice of worms there exist approximating solutions, however, this work is aimed at increasing the number of these processes for the purpose of manufacturing accuracy, for the advances in science and technology provide a possibility for that and simultaneously create a demand as well.
References: [1] Balajti, Zs., Dudas, I., Up To Date Method for Describing the Bearing Pattern of Spiroid Driving, Проблемы машиностроения и автоматизацииor, Engineering and Automation Problems International Journal, Moskva, ISSN 0234-6206 pp. 52-56 [2] Felho, Cs., Kundrak, J., Characterization of topography of cut surface based on theoretical roughness indexes, Key Engineering Materials, Vol. 496 (2012) pp.194-199.
[6] Ovarine Balajti, Zsuzsa, Development of the Production Geometry of Kinematic Drive Pairs, PhD dissertation (in Hungarian) p. 170, University of Miskolc, 2007 [7] Perepelica B A, Kundrak J, How to use the multiparameter mapping to describe the kinematics of metal cutting, In: Result of the scientific cooperation between the Polytechnical University of Kharkov and the University of Miskolc: Jubilee Conference, Miskolc, Magyarország, 1994.03.01-1994.03.02., Miskolc, Hungary, University of Miskolc, pp.: 95-98, (ISBN:963 661 238 2) [8] Sztankovics, I., Kundrak, J., Theoretical value of total height of profile in rotational turning, Applied Mechanics and Materials, 2013, pp. 154-161 [9] Varga, G., Kundrak, J., Effect of environmentally conscious machining on machined surface quality, 2013, Applied Mechanics and Materials, 309, pp. 35-42