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Online since: April 2014
Authors: Hai Tao Li, Jian Dai, Fan Wu, Min Hui Xu, Jing Wen Su, Xiu Yu Chen, Ling Fei Zhang, Wei Liu, Zhao Song, Bin Li, Zheng Qiang Zhou, Jian Chen
Compared with other common building materials, bamboo is stronger than timber, and its strength-to-weight ratio is greater than that of common wood, cast iron, aluminum alloy, and structural steel [1].
Materials and test methods The source Moso bamboo (Phyllostachys pubescens, from Jing-an county in the Jiang-xi province) was harvested at the age of 3–4 years.
Journal of Materials in Civil Engineering, 2011, 23(7): 1036-1042
Construction and Building Materials, 2009, 23(1): 210-218
Flexural performance of glued glued bamboo beams, Advanced Materials Research, 2011, 168-170, 1700-1703
Online since: March 2023
Authors: Karel Obrtlík, Alice Chlupová, Ivo Šulák
High-Temperature Low Cycle Fatigue of Nickel-Based Superalloy IN738LC Ivo Šulák1,a, Alice Chlupová1,b* and Karel Obrtlík1,c 1Institute of Physics of Materials, The Czech Academy of Sciences, Žižkova 22, 616 00 Brno, Czech Republic asulak@ipm.cz, b*chlupova@ipm.cz, cobrtlik@ipm.cz Keywords: Inconel; precipitates; microstructure; high-temperature fatigue; hysteresis loop; fractography.
According to [3], analysis of hysteresis loop shape can provide important information about the sources of the high cyclic stress in such complex materials.
a) b) Fig. 6 Comparison of measured data for our alloy IN738LC with materials from literature IN713LC and MAR-M247 [4 - 6] measured at 800 °C (a) and 950 °C (b).
Celko, Low cycle fatigue and dwell-fatigue of diffusion coated superalloy Inconel 713LC at 800 degrees C, Materials Characterization 169 (2020) 13
Celko, High-temperature low-cycle fatigue behaviour of HIP treated and untreated superalloy MAR-M247, Kovove Materialy-Metallic Materials 54 (6) (2016) 471-481.
Online since: April 2012
Authors: Duangduen Atong, Chiravoot Pechyen, B. Sreenual
Pechyen1, 3, c 1Department of Packaging and Materials Technology, Faculty of Argo-Industry, Kasetsart University, Bangkok 10900, Thailand 2National Metal and Materials Technology Center, 114 Thailand Science Park, Pathumthani 12120, Thailand 3Center for Advanced Studies in Agriculture and Food, KU Institute for Advanced Studies, Kasetsart University, Bangkok 10900, Thailand (CASAF, NUR-KU, Thailand) abandit.sn@hotmail.com, bduangdua@mtec.or.th, cchiravoot.p@ku.ac.th Keywords: Polyvinylchloride, Wood Composite, UV-Weathering, Degradation Abstract.
Introduction Wood-plastic composites (WPCs) are composite materials made of wood fiber/flour and plastic.
In addition to wood fiber and plastic, WPCs can also contain other ligno-cellulosic and/or inorganic filler materials.
Beside the amount of additive, since the hardness is the surface property rather than bulk property of the materials.
Liang: Journal of Environmental Management Vol.91, (2010), p.2505-2510
Online since: May 2011
Authors: Shu Kai Zhao, Cong Jin Chen, Jian Ju Luo, Xiu Ping Huang
Artocarpus heterophyllus Lam is widely cultivated as a southern tree species; its wood material characteristics research is practically significant.
Materials and Methods The wood Materials Experimental wood material was collected in November 2008 in the West Campus of Guangxi university from a tree identified as Artocarpus heterophyllus Lam wood (age 11 years) by professor XuFeng working in forestry College of Guangxi University.
The residual material was cooled and filtered and washed 3 times with distilled water.
Acknowledgment The authors are grateful to Science and Technology Department of Guanxi Zhuang Autonomous Region, Education Department of Guanxi Zhuang autonomous Region for financial support: Guangxi Natural Science Foundation(09236002), Guangxi Education Department Scientific Research Fund (2009LX003).
[3] K.K.Pandey, Journal of Applied Polymer Science, Vol.71(1999), p.1969
Online since: March 2010
Authors: Wen Ge Wu, Li Juan Liu
The materials are the key factor for the manufacture efficiency, quality, cost and its longevity.
It realizes the selection of HSM cutters, which is including the selection to HSM cutting tool shanks, tool-chucks, and the cutters materials.
There are multifarious usual work pieces' and cutters' materials information (grade, composition, and properties) in the system's database.
We compiled information from more than 50 kinds of cutting tools for HSM, including cutting tool materials, trademark, processing conditions, and the condition of work pieces.
[3] M.V.Ribeiro, N.L.Coppini: Journal of Materials Processing Technology Vol.92-93 (2002),p.371.
Online since: September 2013
Authors: Hong Chao Gao
When shooting range anti-tank munitions power experiment was carried out, due to the large thickness of homogeneous target plate and composite armor materials is high, it can't completely use homogeneous armor target or composite armor target live-fire test.
Interval of target layers, armor-penetration projectile consumes every through a layer of a certain energy, there is gaps between each layer, can fill materials or use the air.
He Chunxia professor on the experimental study of metal jet performance of different materials, points out that when the polymer matrix composites under the action of jet produces plastic perforated, its resistance to metal jet performance is superior to the ordinary ceramic material; The structure of materials is one of the important factors affect the fluid resistance, glass GangShan board attenuation effect than pure solid glass slabs jet is more efficient; Material thickness increases greatly after metal jet penetration performance will decline substantially.
Suggesting that even the same material, the structure of materials has important influence on the resistance of the metal jet performance.
Use of smaller amounts of materials and the optimization of the structure of the form, improve the performance of resistance to metal jet, this work has yet to be further research and deepening.
Online since: August 2013
Authors: Li Hua Zhang, Fu Jun Jiao
This paper mainly discusses the application of ultrasound used in preparing the composite material.
Experimental Methods Experimental Material and Equipment.
In addition, ultrasonic instantaneous ultra high temperature and super high pressure can greatly change the wettability between SiC and matrix metal, even make them completely wet, this increase the combining tightness between the SiC particles and matrix metal; enhance the performance of the composite materials.
[2]Yankui Zhang, Zhijun Hu,Jin Hu.Journal of netsshape forming engineering, Vol.3(2011), issue 1,p.39-42(In Chinese)
[3] ESKIN G I: Ultrasonic treatment of light alloys (Gordon and Breach Science Publishers, Amesterdam 1998)
Online since: August 2007
Authors: Jia Xiang Liu, Sheng Nan Zeng, Nan Zhang
The effect of technological condition on electrical properties of ITO films Shengnan Zeng,Jiaxiang Liu* and Nan Zhang The State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China ljxpost@263.net Keywords: optimizing formation condition; electrical properties; ITO thin film Abstract: The transparent ITO multi-layers films were fabricated on quartz glass substrate by colloid dip-coating technique from indium metal ingots and stannic chloride.
From the results of research, it can be seen that the multi-layer films has optimum characteristics, whose sheet resistance is 117Ω/□, when the use level of Sn is 10%wt,heated in 800℃ 15min with repeated dip-coating seven times.. 1.Introduction Thin films of indium oxide doped with tin (ITO) are advanced ceramic material with high transmission in the visible region and a low resistivity.
Experimental Indium ingot of 99.99% purity and stannic chloride were used as the starting material.
References [1] Sanchuan Tang, Jisheng Yao, Jianguo Luo:Journal of Materials Processing Technology Vol.137(2003), p.82-85 [2] Ho-chul Lee, O.Ok Park:Vacuum Vol.75(2004),p.275-282 [3] A.Suzuki, T.Matsushita, T.Aoki, A.Mori, M.Okuda: Thin solid Films Vol.411 (2002), p.23 [4] S.Seki, Y.Sawada, T.Nishide: Thin solid Films Vol. 388(2001), p.21 [5] Aldrin Antony, M.Nisha,R.Manoj,M.K.Jayaraj:Applied surface scienceVol.225(2004),p.294-301 [6] M.J.Alam, D.C.Cameron: Thin solid Films Vol. 00(2000), p.455-459 [7]P.K.Biswas, A.De,K.Ortner,S.Korder:Materials Letters Vol.58(2004),p.1540-1545 [8]Sytapa Roy Ramanan: Thin Solid Films Vol.389 (2001), p.207-212 [9]Ki Young Kim, Seung Bin Park:Materials chemistry and Physics Vol.86*2004),p.210-221 [10]Stoica T.F, M Gartner, M Losurdo, V Teodorescu, M Blanchin, T Stoica, M Zaharecu:Thin Solid Films Vol.455-456(2004),p.509-512 [11]Ramanan, Sutapa Roy: Thin Solid Films Vol.389 (2001), p.207-212 [12]R.B.H.
Online since: June 2013
Authors: Jing Zhang, Jian Ying Li, Qi Zhi Cao, Yi Fang Ouyang
First-principles Calculation of Elastic Constants for FeP Jianying Li2,a, Jing Zhang 2,b, Qizhi Cao 2,c and Yifang Ouyang 1,d 1 Ministry-province jointly-constructed cultivation base for state key laboratory of Processing for non-ferrous metal and featured materials, Guangxi Zhuang Autonomous Region, College of Physics Science and Technology, Guangxi University, Nanning, Guangxi, China 2 College of Physics and Electronic Engineering, Guangxi Teachers Education University, Nanning, Guangxi, China; aljy@gxtc.edu.cn, bzj_happiness@163.com, cqzhcao77@163.com, douyangyf@gxu.edu.cn Corresponding author: ouyangyf@gxu.edu.cn Keywords: FeP intermetallic compound; first-principles; elastic constants; formation enthalpy Abstract:The elastic constants of FeP with orthorhombic structure were calculated by using the density-functional theory method.
Pugh[15] proposed an empirical criterion, which can determine the ductility or brittleness of metal materials through the ratio of shear modulus G and bulk elastic modulus B, that is, if G/B <0.5, the material is ductile.
Cauchy pressure (C12-C44) can also be used to judge he ductility or brittleness of intermetallic compounds FeP [16], that is, for the metal bond, Cauchy pressure value is positive, and the greater value represents that metal bond is stronger and the ductility of the material is better; while for covalent bond, Cauchy pressure value is negative, the materials behavior as brittleness.
Acknowledgements This work was financially supported by Supported by Ministry-province jointly-constructed cultivation base for state key laboratory of Processing for non-ferrous metal and featured materials, Guangxi Zhuang Autonomous Region (Grant No.
Journal of Guangxi University: Nat Sci Ed.
Online since: January 2007
Authors: Ze Sheng Lu, L. Yang
The cutting force curves, on different conditions of tool rake angle, cutting velocity, cutting depth and workpiece materials, are shown as following.
The relationship between amplitude and cutting force Fx on condition of different rake angle The Effect of Amplitude on Cutting Force on Condition of Different Workpiece Materials.
The effect of amplitude on cutting force is simulated on different workpiece materials condition (see Fig.9).
[8] Wu D.W and Liu C.R: Journal of Engineering Industry, Vol. 107,(1994),pp.107- 108 Figure9.
The relationship between amplitude and cutting force Fx on condition of different workpiece materials