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Aspinwall: Journal of Materials Processing Technology,Vol.118 (2001), pp.143-150
Krishnamurthy: Journal of Materials Processing Technology,Vol.100 (2000), pp.80-86
Ren: Key Engineering Materials Vol. 259-260 (2004), pp.451-455
Chen: Materials Science and Engineering,Vol.445-446 (2007), pp.691-695
Wan: Materials Science and Engineering,Vol.430 (2006), pp.216-220

The results shows that the best activation conditions of calcination for coal gangue activation time is1.5h, under the condition of calcination temperature 650˚C, water cooling, the Al3+ dissolution rate can reach 70.14%.After activation of coal gangue, the kaolinite convert directly into cetakaolinite, it’s active composition SiO2 and Al2O3 present loose shape, good activation, can be used as an adsorbent and catalyst materials.
Raw materials and analysis This experiment adopts the raw materials are from Heilongjiang Yilan coal gangue, the chemical composition analysis with chemical method[3], the chemical composition of coal gangue parallel experimental analysis, three groups of experimental data on average fill in the table.
Tab.1 The main chemical composition of Yilan coal gangue Raw material SiO2 Al2O3 Fe2O3 CaO MgO SO3 loss Mass fraction 48.60 37.25 1.2 1.82 1.22 0.62 9.29 After calcination kaolinite in coal gangue mineral dehydration decomposition, before stability of alumina and silicon oxygen tetrahedron tetrahedron split to form chains of breakpoints, formed on the thermodynamic instability of glass phase structure, by the activity of kaolinite generate partial kaolinite, activated and structure activity increase in the number of amorphous SiO2 and Al2O3.
Journal of Materials Science and Engineering 2005, 23(1):88-91
Journal of east China university of science and technology (Natural Science edition) 2007, (6):765-770

Modal analysis of oversize ball mill tube based on ANSYS Litao CHEN 1,a, Yujun XUE 1,2,b, Yi LIU 1,c, Jishun LI 2,d 1 School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471003, P.R.
China. 2 Henan Key Laboratory for Machinery Design and Transmission System, Henan University of Science and Technology, Luoyang 471003, P.R.
The ball mill is one kind of breaking plants which used widely in building materials, metallurgy, mineral processing and so on.
Modeling and Diving into Network of the Strength Analysis of Ball Mills Drums[J].Journal of Zhuzhou Institute of Technology, 2003, 3:89-91
Journal of Xi’an Technological University. (2007)

Usually earth rockfill materials of cofferdam will be changed as its particle breakage and position transformation during cofferdam construction and working processing on account of materials sedimentation or external load fluctuation such as water pressure change induced by upstream water level change, of course the material parameters of which will change great.
Based on strength reduction method, considering change of intensive parameter of earth rockfill materials during cofferdam construction, the slope stability safety coefficient calculation model can be expressed as : （2） In which denotes earth rockfill materials confining pressure which changes with alteration of filling process, represents internal friction angle of earth rockfill materials on the condition that equals atmospheric pressure, designates the magnitude of reduction of as increment of , c is cohesion of materials.
[4] ZHENG Ying,CHEN Xianming, in: Journal of Hydroelectric Engineering.
[5] Yu Shu, Chen Lihong, Xu Zeping, Chen Ning, in: Advanced Materials Research.
[6] LI Zhenze,GUO Zengyu, in: Journal of Hydroelectric Engineering.

Materials Science. 45, 103-109
Materials and Design. 46, 766-775
International Journal of Engineering Science and Technology. 12, 53-61
Materials Science & Engineering A, 398, 246-251
Materials Science & Engineering A. 408, 131-135

Materials and Methodology Materials.
Antunes, Mara C.L. de Oliveira, Gerhard Ett, Volkmar Ett, Carbon materials in composite bipolar plates for polymer electrolyte membrane fuel cells: A review of the main challenges to improve electrical performance, Journal of Power Sources 196, 2011
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Foulkes, A review of metallic bipolar plates for proton exchange membrane fuel cells: Materials and fabrication methods, Advances in Materials Science and Engineering, 2012 (2012) 1–22

[Nanostructured materials.
[Science and Nanotechnology.
Kazan Journal of gov't. technologist.
[Fundamentals of Materials Innovation.]
Advanced metal materials and technologies.

Acknowledgement This work is supported by National Nature Science Foundation of China (No.51176076).
Chinese Journal of Energetic Materials. 2007, 15(6): 587-591
Journal of Nanjing University of Science and Technology. 2009, 33(1): 112-116
Chinese Journal of Energetic Materials. 2007, 15(2): 105-108 [9] Jinghong CHEN, ChuanRu LI.
Thermal Analysis and Its Application,Science Press, 1985

Journal of Manufacturing Processes. (2013) 15(3): 348-354
Journal of Engineering Manufacture. (2011) 225(7):975-989
Journal of Changchun University of Science and Technology. (2002) 25(2): 40-42
Journal of Nanjing University of Aeronautics & Astronautics. (2005) 37(z1): 86-89
International Journal of Machine Tools and Manufacture. (2014) 82-83: 59-67.

Materials and methods Material.
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