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Table 1: Different electromechanical properties of piezoelectric materials [5].
Thus, the knowledge of the transmission curves of these materials in the visible range of the electromagnetic spectrum is extremely important.
Journal for Optics A: pure and applied Optics.
Elsevier Applied Science.
Journal of Non-Crystalline Solids.

LUO Zhan-you etc[references4] derive general solutions calculating Tresca and Mohr-Coulomb materials stress and displacement fields of expansion of cylindrical cavities by means of different modulus elasticity and stress-softening model.
Expansion of cylindrical cavity of materials with strain-softening behaviour[J].
Chinese Journal of Geotechnical Engineering, 1995, 17(4): 10-19 (In Chinese)
[3] WANG Xiao-hong, WANG Jia-lai, LIANG Fa-yun, Analysis solution to expansion of cavity in strain-softening materials[J].
[5] YU Mao-hong: Twin Shear Theory and It’s Applications [M]．Bei Jing : Science Press, 1998(In Chinese).

Carbon nano tubes are with unique physicochemical property, so it has been widely studied in fields of high strength carbon fiber materials [1], hydrogen storage materials [2], new catalytic materials [3-5], etc.
Catalytic materials with specific properties can be prepared in the cavity of tubular due to that CNTs are with one-dimensional tubular structure.
Meanwhile, CNTs being as new catalytic materials have caused attention of many researchers.
Science,1999,283(5407):1513～1516
Journal of Catalysis,2002,211(1):278～282

Effect of Titanium on Microstructure and Phase Composition of High Boron Alloyed Stainless Steel Liu Jinga, Zhang Keb, Han Jingtaoc School of materials science and engineering, USTB,Beijing, China,100083 aliujing@mater.ustb.edu.cn, bzhangkeworld@126.com, cHanjt@ustb.edu.cn Keywords: high boron alloyed stainless steel(HBASS), boride, microstructure, phase composition Abstract.
But even more important, the radiation has little effect on its properties, so the stainless steel is not only used for shielding materials, but also can be act as structural materials[1].
experimental materials and method Boron iron, pure Ti(99.8%) and the stainless steel were mixed into vacuum induction furnace, the steel liquid was cast into casting mould under condition of 1550℃, holding 10-15 min and 0.1 MPa vacuum.
References [1] Wenfeng Yang, Ying Liu, Lin Yang, Dean Li, et al: Materials Review, 21(2007), No.5, P.82(In Chinese) [2] Qinsong Yuan: The Effect of Zr,Cr,Ni on the Microstructure of High Boron Steel, Chengdu, XiHua University,2009(In Chinese) [3] Shizhen Jiang, Youzhao Bao: Journal of Iron and Steel Research, 3(1983), No.2, P.194(In Chinese) [4] Ke Zhang: Preparation Technology of High Boron Alloyed Stainless Steel Composite Plate as Thermal Neutron Irradiation Resistance Materials, Beijing: University of Science and Technology Beijing,2011(In Chinese) [5] Yongning Yu: Metallography Principle, Beijing: Beijing Metallurgy Industry Press,2000(In Chinese) [6] Turkdogan E T: Physical Chemistry of High Temperature Technology, New York:Academic Press,1980, P.5 [7] Suiyuan Chen, Changsheng Liu, Guiqin Fu, Zhangtao Wang ,et al: ACTA Physica Sinica, 51(2002), No.8, P.1711 (In Chinese)

Research use epoxy resin as a film-forming material, adding a hydrophobic nano-SiO2, a low surface energy material, and other fillers for preparing a new kind of imitation lotus leaf structure-modified epoxy resin coating, the coating of contact with waterangle is up to 140℃, which has good hydrophobic properties.
,but also relate with the roughness of the material surface.
About the Author: Wan Jiagui(1970 -), female, Associate Professor, Mechanical Science and Engineering of Northeast Petroleum University, teachers, mainly engaged in the material surface treatment and metal corrosion protection.
Preparation of Material Surface Structure Similar to Hydrophobic Structure of Lotus Leaf [J].
Journal of Materials Science & Engineering , 2007, 25(4): 602-605

Beijing, China science and technology publishing house. 1996, 123-127
Journal of earthquake, 2002, 24 (1) : 90 ~ 97
Journal of northwestern earthquake.2003, 25, (4) : 365 ~ 368
Journal of natural disasters. 1995, four (4) : 27-33
Journal of natural disasters, 1996, 5 [10] Bian Fuling, etc.

Clothing structure refers to the geometry of various components and layers of material and their composition relationship.
Journal of Computer-Aided Design & Computer Graphics. 1999,11 (3), p218-220
Journal of Computer-Aided Design & Computer Graphics. 2002 (11), p1087-1090
Journal of Beijing Institute of Clothing Technology,2003.60 (1)
Journal of Engineering Graphics, 1992 (2), p42-48

The 2006 International Symposium on Safety Science and Technology, ChangSha, 2006: 1092-1096
Journal of Solid Rocket Technology, 2002,25(2):43-47
Journal of Propulsion and Power, 2002, 18(5):1106-1111
Chinese Journal of Explosives & Propellants, 2004,27(4):66-68
Journal of Propulsion Technology, 2004,25(5):397-400

Introduction Chitin and Chitosan are widely used and researched as medical implant materials [1].
Defects without material were made as blank controls.
Therefore, marrow cells are led into the materials, and then nearby TCP granules that have osteoconductivity stimulate the cells to regenerate new bone.
Advances in Chitin Science, vol.
Somorin, Polymer Journal vol. 15, 485-489 (1983) [7] Y.

Introduction Magnesium alloys have been attractive structural materials applying to automobile and aerospace industries due to high specific strength, good electro-magnetism shielding properties, good damping capacity and recycling capability [1-3].
The equations can be written as: (1) where ,and are materials constants, is the effective activation energy of deformation, is the gas constant, is the strain rate, is the deformation temperature in Kelvin, and is the Zener–Hollomon parameter.
Xia, W.H.Wu, A.R.Wu and Y.N.Wang: The Chinese Journal of Nonferrous Metals vol.11(2004), p. 1810 [12] Y.Q.
Ding: Magnesium alloy Science and Technology (Science Press, China 2007)
Palek: Journal of Alloys and Compounds V0l. 378 (2004), p. 180 [19] J.Yang, J.