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Introduction Metal foams are a new class of engineering materials integrated with physical function and structure.
And the closed-cell aluminium foams material has higher protective value from projectiles than open-cell aluminium foams material.
Fleck, "High strain rate compressive behavior of aluminum foam alloy foams",International Journal of Impact Engineering,vol.24,2000, p.277-292 [4] M.
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Ong, "Dynamic indentation and penetration of aluminium foams", Mechanical Sciences, vol.50, 2008, p.932-943

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

According to the structure of carbon materials, multi-walled carbon nanotube(MWCNT) can be considered as a curly materials of nature graphite sheets.
Ltd., Chinese Academy of Sciences.
Lu, Journal of Power Sources 195 (2010) 2914-2917 [2] D.
Zhu, Advanced Materials Research 704(2013),98-101 [7] J.C.
Zhu, Applied Mechanics and Materials 331(2013),427-430 [8] Iijima S.

Material and method Experimental materials.
The voucher specimen is deposited at the College of Material Science and Engineering of the Central South University of Forestry and Technology (No. 20091025).
of material cells.
Acknowledgements This work was financially supported by the Hunan provincial science and technology project (No. 2009NK3123) and the Hunan provincial science and technology project (No. 2010NK3038).
References [1] Chinese Pharmacopoeia Committee: Pharmacopoeia of the People's Republic of China (China Medical Science Press, Peking, 2010)

This is an indication of the typical visco-elastic behavior of polymer materials.
This behavior is indicative of viscoelastic properties inherent in SLA-manufactured polymer materials
Progress in Materials Science 112: 100688
Journal of Polymer Science Part B: Polymer Physics 55(18): 1329–1349
ASME Open Journal of Engineering, 1

Baeslack, Welding of duplex stainless steels, Key Engineering Materials 69-70 (1992) 217-252
Sundaresan, Effect of weld metal chemistry and heat input on the structure and properties of duplex stainless steel welds, Materials Science and Engineering 358 (2003) 9-16
Honeycombe, Microstructural refinement of duplex stainless steels, Material Science and Technology 7 (1990) 137-145
Barrena, The effect of N2 addition upon the MIG welding process of duplex steels, Journal of Material Science 42 (2007) 4892-4898
Noorul Haq, Effect of shielding gases on mechanical and metallurgical properties of duplex stainless-steel, Journal of Materials Science 44 (2009) 114-121

Acknowledgements This work was financially supported by Natural Science Foundation of P.
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Chinese Journal of Rock Mechanics and Engineering, 2003, 22(10): 1613-1617.

Acknowledgments This research is supported by National Natural Science Foundation of China (51378030), Beijing Municipal Education Commission Research Project (km201410005019), Postdoctoral Science Foundation of China (2013M530501) and National Science & Technology Pillar Program of China (2013BAJ10B03-02).
Journal of Basic Science and Engineering. 2012, 20(6):1051-1062(in Chinese) [2] Y.
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Journal of Earthquake Engineering and Engineering Vibration. 2011, 31(5):30-38(in Chinese) [5] H.Y.
Advanced Materials Research, 2012, 446/449:3160-3164 [6] Code for design of concrete structures (GB 50010-2002), National Standards of P.R.C(in Chinese) [7] Z.H.

Acknowledgment The research was supported by the Natural Science Key Projects of the Sichuan Education Bureau of China (Grant No. 12ZA164).
(China University of Science and Technology Publishing House,Beijing1998), p. 351-372
Xiao: The Seepage Problem in Dual-permeability Media Reservoir Based on Similar Structure of Solution (in Chinese), Journal of Xihua University (Natural Science Edition), vol. 30(2011), p.64-66
Li and D.D.Gui: The Similar Structure of Solution in the Spherical Shaped Matrix of Dual-Porosity Reservoir Seepage Model, Applied Mechanics and Materials, Vol. 339(2013), p.737-741
Li: Preliminary Exploration and Prospects of the Similar Structure of Solutions of Differential Equations (in Chinese), Journal of Xihua University (Natural Science Edition), vol. 29 (2010), p.223-226(to 238).

Visual reconstruction and feature analysis of the three-dimensional surface of a biological prototype plays an important role in building and optimizing the mathematical model of Biological prototype, this also useful to study the effects of morphology, structure and the materials on the biological function.
Journal of Agricultural Engineering Research. 79(2001), 239-263 [3] Liang Xu, Min-xu Lin, Jian-qiao Li, Zhao-liang Wang and B.
Journal of Bionics Engineering. 5(2008), 85-90
Journal of Bionics Engineering. 5(2008), 164-171
Journal of Tianjin University Science and Technology. 42(2009), 357-361