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Introduction Most construction materials have porous structure.
Materials and Methods Microstructural analysis.
Deckelmann, "Model for the mechanical stress due to the salt crystallization in porous materials," Construction and Building Materials, vol. 22, no. 7, pp. 1350-1367, 2008
Pel, "Sodium sulfate heptahydrate: direct observation of crystallization in a porous material," Journal of Physics D: Applied Physics, vol. 41, no. 21, p. 212002, 2008
Springer Science & Business Media, 2013

Study on technology of flexible forming of sheet metal based on laser shock waves[J].Materials Science Forum,2004,471~472:453~456
A study on super-speed forming of metal sheet by laser shock waves[J].Journal of Materials Processing Technology, 2002, 129(1~3):241~244
[8] Kong Dejun,Zhu Wei,Lu Jinzhong.Effects of Laser Shock Processing on Residual Stress of Aluminum Alloy LY12CZ[J].RARE METAL MATERIALS AND ENGINEERING,2009,30:30 8~311
[11] SUN Cai,DONG Lixin,LIU Liling.Effect of Solution Treatment on Microstucture and Mechanical Properties of 7075 Al Alloy[J].Materials & Heat Treatment,2010,39(24):249~256
[13] WANG Qiu-cheng,KE Ying-lin.Control and relief of residual stresses in high-strength aluminum alloy parts for aerospace industry[J].JOURNAL OF AERONAUTICAL MATERIALS,2001,22(3):59~62.

So they are regarded as the ideal materials for thermal protection system (TPS) and thermal structures of reusable space vehicle including spaceplanes.
Aerospace Materials & Technology. 4 (2001) 36-39
Journal of Reinforced Plastics and Composites. 24 (2005) 935-947
Composites Science and Technology. 67 (2007) 61-69
Journal Advanced Materials. 25 (1994) 36-43

On the Rapid Generation of Complete XRF Spectra for Material Analysis from Fundamental Parameters Jiesi Ma1,a, Fusheng Li1,b* and Yanchun Zhao1,c 1School of Automation Engineering, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, PR China a201952061021@std.uestc.edu.cn, b*lifusheng@uestc.edu.cn, cyczhao@uestc.edu.cn *Correspondence: lifusheng@uestc.edu.cn Keywords: XRF spectra, fundamental parameters, material analysis, MCNP Abstract.
It proves that the proposed model can be a better alternative of MCNP code in the application of generation the XRF spectra of many materials, in terms of speed and accuracy.
The proposed model can perform the simulation of XRF spectra in situ both fast and accurately, which is essential for real-time calculation of chemical composition by use of X-ray spectrometer, especially for those trace elements in target materials.
Japanese Journal of Applied Physics, 1966, 5(10) 886-899 [6] R.M.
Journal of Hazardous Materials, 2009, 171(1-3) 1168-1171 [10] T.

Creep deformation of materials is accompanies by irreversible changes in their internal structure, such as creep damage.
Even in the unloaded state initially anisotropic materials contain various micro-defects, such as micro-cracks, micro-voids, pores, inclusions, second-phase particles and other in-homogeneities.
Journal of rock mechanics and mining sciences 43(2):950-960 (2006) [3] Yang SQ, Jiang YZ.
Mining science and technology 20(9):339-349 (2010) [4] G.
Journal of University of Science and Technology of China 31(6):686-693 (in Chinese, 2001) [12] Jiang YD, Zhe J, Zhao YX, Liu JH, Wang HW.

The carbon fiber reinforced material, which is a kind of new and highly effective structure reinforcement materials, has a lot of advantages, such as high strength, light weight, corrosion resistant and so on.
Fire Safety Science, Vol.14-4(2005), p. 234-238.
Journal of Sichuang University (Engineering Science Edition), Vol.42-2(2010), p. 52-57.
Fire Safety Science, Vol.12-4(2003), p. 218-223.
China Civil Engineering Journal, Vol.43-3(2010), p. 15-23.

As a result of these researches, several ideas of improving SCC have been suggested which lead to the use of waste materials as a supplementary cementations material.
Advanced Materials Research (2012); 587: pp21-25 [3] J.M.
Construction and Building Materials (2008) ;22: pp 1963-1971
Construction and Building Materials (2010); 24: pp 1245 – 1252
Chiang Mai Journal of Science (2010); 38: pp 389-404

Similitude design of a model test concerns the size and materials of the model.
Then, in order to investigate the failure mechanism of stabilizing pile, the physical properties of model materials and the difficulty of making of model pile are taken into consideration.
Based on the similitude relations of the two kinds of model materials, the strength model of the reinforced concrete pile can be established.
Acknowledgement This work was financially supported by the National Natural Science Foundation of China (11072193 and 50879039), and China Postdoctoral Science Foundation funded project (20100481354).
Journal of Hydraulic Engineering, Vol.41, issue.4( 2010), p.446–451.

It is found that the optimal proportion of SnO2 to graphene is 8：1 (wt%) for the electrospun composite materials.
Most commercial lithium-ion batteries use graphitic materials as anode material.
Zhang, Journal of Materials Chemistry A, 2 (2014) 10211-10217
Novoselov, Nature Materials, 6 (2007) 183-191
Hyeon, Advanced Functional Materials, 15 (2005) 1845-1850

Experimental Procedures Materials.
Journal of Wuhan University of Technology: Material Science, 2007, 22(1):82-84
Journal of Central South University: Science and Technology, 2005, 36(2): 340−343.
The grain grading model and prediction of deleterious porosity of cement-based materials[J].
Journal of Fuzhou University: Natural Science, 2005, 33(S0): 223- 227.