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Online since: January 2024
Authors: Sivakumar Ramakrishan, Pugalyenthiran Sinaiyah, Hashim Hussin, Sanjith Udayakumar
The common impurities are other minerals or organic materials such as micas, feldspar, clay minerals, and coal [5].
In the sand processing industry, spiral concentrators are used to separate silica sand from impurities such as other gangue minerals and organic materials [13].
Materials Today: Proceedings. 2021;47:3445-8
Advanced Materials Research; 2012: Trans Tech Publ
Particulate Science and Technology. 2013;31(6):590-5
Online since: October 2016
Authors: Lander Galdos, Joseba Mendiguren, Eneko Sáenz de Argandoña, Ritanjali Sethy
Although measuring the force and extruded height is the most common way to identify m in T-Shape test but our hypothesis is that geometrical shape of specimen could be a good way to simplify the methodology for a big range of materials.
Fig. 3 Force curves with Different HTC Fig. 4 Force curves simulated with different friction factor (HTC=7 kW/m2K) Fig. 5 Force curves simulated with Material changes (m=0.8 and HTC=7000 kW/m2K) Experimental Description Used materials and Test plan For both columnar upsetting test and T-Shape test, aluminum alloy (2014-T3) has been selected material for preparation of the specimens and the geometry of specimenshave been chosen as cylindrical.
In future, one can try to identify the force measurements considering with different materials to see its variationand including a thermocouple into the die can find the HTC in this test References [1]Q.
Dean, The interfacial heat transfer coefficient in hot die forging of titanium alloy, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science. 212 (1998) 485-496
Pezeshki-Najafabadi, Application of T-shape friction test for AZ31 and AZ80 magnesium alloys at elevated temperatures, Materials and Design. 32 (2011) 3221–3230
Online since: August 2016
Authors: Florian Pyczak, Andreas Schreyer, Frank Peter Schimansky, Andreas Stark, Bernd Schwebke, Daniel Laipple
Thus, many different microstructures can be adjusted in bulk TiAl materials depending on the applied heat treatment [5, 7].
Gerling, Microstructure and Texture Formation During Near Conventional Forging of an Intermetallic Ti-45Al-5Nb Alloy, Advanced Engineering Materials, 11 (2009), pp. 976–981
Mayer, Design, Processing, Microstructure, Properties, and Applications of Advanced Intermetallic TiAl Alloys, Advanced Engineering Materials, 15 (2013), pp. 191–215
Schimansky, Powder metallurgical processing of intermetallic gamma titanium aluminides, Advanced Engineering Materials, 6 (2004), pp. 23–38
Giannuzzi, Electron backscattering dffraction investigation of focused ion beam surfaces, Journal of Electronic Materials, 31 (2002), pp. 33–39
Online since: December 2015
Authors: Jefri Jaapar, Manroshan Singh Jaswan Singh, Siti Noor Suzila Maqsood Ul Haque, Amir Hashim Md Yatim, Roslim Ramli
Materials and methods Materials.
This was attributed to possible strength adjusters, like other non rubber materials, of which the strength of natural rubber latex films reduced with addition of non rubber materials [10].
Blackley, Polymer lattices science and technology, 2nd ed.
Throdahl, "Physical aspects of aging of rubbers," presented at the Symposium on aging of rubbers : American Society for Testing Materials, Chicago, U.S.A., 1949
Amir Hashim, "Calcium carbonate in low protien natural rubber latex films," in 4th International Conference on Recent Advances in Materials, Minerals & Environment And 2nd Asian Symposium on Materials and Process, Penang, Malaysia, 2009.
Online since: October 2016
Authors: Emma Maggiolini, Elisa Castagnola, Luciano Fadiga, Davide Ricci, Marco Marrani, Francesco Maita, Luca Pazzini, Davide Polese, Alessandro Pecora, Luca Maiolo, Guglielmo Fortunato
Materials and Methods Ultra-flexible micro-ECoG array fabrication.
The overall noise of the recording system and the averaged SPDs of the spontaneous neural activity recorded from the rat cortex were characterized as described in Materials and Methods.
“Assessment of the biocompatibility of photosensitive polyimide for implantable medical device use”, Journal of Biomedical Materials Research Part A, vol. 90A, no. 3, pp.648–655, 2009
Richter-Dahlfors, “Organic bioelectronics” Advanced Materials, vol. 19(20), pp. 3201–3213, 2007. doi:10.1002/adma.200700419 [20] M.
Chemistry of Materials, 26(1), 2014, 679–685. doi:10.1021/cm4022003 [22] T.
Online since: June 2009
Authors: Xin Long Chang, Xiang Yong He, Bin Jian, Zheng Liang Li
The fiber reinforced composite materials were widely used for aerospace aircrafts and missile weapons, and the delamination was a major problem which reduced the structural integrity and reliability of the solid rocket motor (SRM) composite shell seriously.
Their small sizes and compatibility with common composites materials made them easily embedded inside the structure without inducing significant weakening of the structure [3].
In this study, the prepreg system of the Scale SRM models used the HS2/3404, the HS2 produced by Sinoma Science & Technology Co.
References [1] Shen Guanlin, Hu Gengkai: Mechanics of composite Materials (Tinghua university publishing company, 2006) [2] Cui Zhaoxia: A Study on the Stress and Damage of Fiber Winding Composite, Doctor degree thesis, Harbin: Harbin Engineering University, 2003 [3] R.de Oliveira, C.A.
Crews: Engineering Structures Vol. 30 (2008), p. 1124 [5] Narayanan Ramanujam, Toshio Nakamura: Journal of Composite Materials Vol.41 (2007), p. 2471 [6] G.R.Liu, Y.T.Gu: An introduction to meshfree methods and their programming (Shangdong University publishing company, 2007) [7] Xinlong Chang, Xiangyong He, etc: Experimental Research on Embedded Fiber Bragg Grating Sensors Network for Solid Rocket Motors Health Monitor, Edited by Zheng hong, First International Conference on Intelligent Networks and Intelligent Systems, 2008, p.170
Online since: May 2023
Authors: Laire Tier, Te Li
Influence of Brick Powder with Different Replacement Ratio on Concrete Performance and its Microscopic Mechanism Te Li1,a*, Laire Tier2,b 1Faculty of Materials Science and Engineering, Chongqing University, Chongqing 400000, China 2Faculty of Materials Science and Engineering, Southeast University, Nanjing 210000, China a*lairetier@seu.edu.cn, bTeLi@cqu.edu.cn Keywords: Brick powder; Concrete; Workability; Mechanical properties; Durability Abstract.
This paper studies the influence of brick powder on the performance of cement-based materials.
Fig.1 Chemical Composition of materials Compared with cement, the CaO content of brick powder was less, SiO2 and Al2O3 were the main chemical components of brick powder, The SEM images of raw materials are shown in Fig. 2.
The pores in gelling materials can be classified as gel pores ( <10 nm), medium pores (10 nm-100 nm), capillary pores (100 nm-1000 nm) and large pores (> 1000 nm) , which are reported to be harmless or less harmful to the gelling materials below 100 nm.
Wu, Research progress on recycled clay brick waste as an alternative to cement for sustainable construction materials, Constr.
Online since: June 2010
Authors: E. Szymczyk, J. Jachimowicz, Agnieszka Derewonko, Grzegorz Slawinski
Materials used in riveted joints are subjected to high-strain deformation (plastic deformation).
The classical updated Lagrange formulation (with large strain plasticity option) for elastic-plastic materials is used due to large geometrical and material nonlinearities.
Summary Numerical results are very sensitive to the used materials and FE mesh parameters.
Acknowledgements This work was carried out with the financial support of Polish Ministry of Science and Higher Education under research project in the framework of the Eureka Initiative.
Journal of KONES 14 (2007), p. 465-474
Online since: June 2014
Authors: Fa Chao Wu, Chun Yan Chao, Shuang Tian
Thermal stability and smoke suspension of cotton cellulose modified with magnesium complexes* Fachao Wu1, a ,Chunyan Chao1, b,Shuang Tian1, c 1 School of Environmental Engineering, North China University of Science and Technology, Box 206,Yanjiao Beijing 101601, China aahxmsw@ncist.edu.cn, bchaochunyan@ncist.edu.cn, cwfchljhnyj@163.com Key words: cotton cellulose, thermal stability, flame retardant, smoke suspension Abstract Complexes of cell-THPC-thiourea-ADP with Mg2+ have been prepared.
Experimental Materials Cotton cellulose of commercial grade (Hebei province, China) was selected for flame-retardant treatment.
SEA (m2/kg) Peak Average EHC(MJ/kg) Peak Average CO yield (kg/kg) Peak Average CO2 yield (kg/kg) Peak Average 1 - - 38.5 16.3 - - - - 2 2912 197 25.6 6.8 1.83 0.0088 34.46 1.44 4 1685 158 26.7 8.2 0.68 0.0062 28.98 1.13 Carbon monoxide yield is defined as the mass of CO formed from the unit mass of burned material.
*Contract grant sponsor: 1Fundamental research funds for the Central Universities: B09013; 2Hebei Province Natural Science of China; contract grant numbers: E2011508001 References [1] O.
British Polymer Journal. 22(2) (1990) 107
Online since: June 2014
Authors: Yuan Long Deng, Xiao Xing Zeng, You Fu Geng, Xue Jin Li
A TFT-LCD panel’s configuration can commonly be illustrated by figure 1, consisting of three fundamental materials, i.e. the glass substrate, the liquid crystal and the polymer polaroid.
As one of the essential to a panel, the polymer polaroid takes about 10% of the total material cost.
Acknowledgments The funding by the ShenZhen Science & Technology Project (JCYJ20120613104546 701) and the National Science Foundation of China under Grant 60978041 is gratefully acknowledged.
Wu: Journal of Technology, 24(2009) 267-274 (in Chinese)