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Therefore, study on the strain of the InGaN / GaN material is necessary.
Theory For one element and the two element, the lattice constant of the material obtained by consulting table of physical constants and international powder diffraction database.
The lattice constant of three element and the four element of the material can be obtained according to the Vegard law, such as the lattice constant of three element material can be obtained by linear interpolation from lattice constant of two element materials: .
Acknowledgments This work was financially supported by the Research Fund for Outstanding Youth Science Program in Shihezi university of china(Grant No.2013ZRKXYQ-YD04) References [1] Tao tao, Zhang zhao,Liu lian,et al: Journal of Semiconductors Vol.32(2011),p.083002-4
[7] Nakamura S, Mukai T, Senoh M,et al: Journal of Applied Physics Vol.74(1993),p.3911

Fig.3 showed the forming limit curve result of this material.
Zhao: Automobile Technology and Material, 4 (2005), p. 18-23 [2] G.
Akbarzadeh: Computational Materials Science, Vol.44 (2009), p. 1252-1257 [4] Y.
Han: Journal of Plasticity Engineering, Vol.11 (2004), p. 55-58 [5] J.
Chen: Journal of Jiangsu University (Natural Science Edition), Vol.26 (2005), p. 289-293 [6] K.

Preparation and characterization of skin-colored N-doped ZnO nanocrystals Hanmei Hu1,2,a, Chonghai Deng 3,b, Qian Fang1, Ya Gao1 and Mengwei Song1 1School of Materials and Chemical engineering, Anhui University of Architecture, Hefei, Anhui 230022, China 2Anhui Key Laboratory of Advanced Building Materials, Anhui University of Architecture, Hefei, Anhui 230022, China 3Department of Chemical and Materials Engineering, Hefei University, Hefei, Anhui 230022, China ahmhu@ustc.edu; bchdeng@hfuu.edu.cn Keywords: Nanocrystals; N-doped ZnO; Opticla property.
In this work, skin-colored N-doped ZnO nanocrystallites have been successfully prepared via a microwave-calcinating technique using Zn(N2H4)2·(NO3)2 and C6H12N4 as starting materials.
Acknowledgment This work was supported by the Fifth Science and Technology Foundation of Outstanding Youth of Anhui Province (Grant No. 10040606Y25), the Excellent Talent Foundation of Anhui Province in Chinese Universities (Grant No. 2009SQRZ104ZD) and the National Natural Science Foundation of China (Grant No. 20501002).
Liu: Chemical Engineering Journal Vol. 148 (2009), p. 263
Haneda: Journal of Photochemistry and Photobiology A, Chemistry Vol. 155 (2003), p. 171

The elastic-plastic dynamic FEM Rock and soil mass is a typical elastic-plastic materials.
The geotechnical materials of calculation profile are divided into 5 categories (Fig.1), Which reflects the real geological structure and is easy to calculate as well.
Calculation parameters of various materials of slope are shown in Tab1.
Gansu Science Journal, 1996,8(supplement), 67-72.
Northwest earthquake journal, 1992,14 (4): 61-68.

Introduction Thermoelectric (TE) materials are functional materials that can directly convert electricity and heat.
DiSalvo, Science 285 (1999) 703–706
J.Magnetism and Magnetic Materials, 310(2007)1715-1717
Chen Solid State Sciences 10 (2008) 1422-1428
Journal of Alloys and Compounds 282 (1999) 79–83

Asachi” Technical University of Iasi-Romania, Faculty of Material Science and Engineering 3University “Apollonia”, Faculty of Dental Medicine 4University Politehnica of Bucharest, Faculty of Materials Science and Engineering acornelmun@gmail.com (corresponding author) Keywords: wear test, SEM, heat treatment, rutile.
One of the important reasons for choosing these materials is their ability to develop a naturally formed passive oxide layer, which is comprised of either amorphous or poorly crystallized non-stoichiometric TiO2 [5].
Wear modes [4] Materials and methods Cp-Ti II grade samples were grounded on SiC metallographic paper with different dimensions (from 180 to 1200).
Ramkumar, M.Satyam, “Growth of titanium oxide overlayers by thermal oxidation of titanium”, 1988, Journal of Materials Science 23 (1988) 1591 – 1597 [8] B.
Alsaran, “Influence of Surface Roughness on Corrosion and Tribological Behavior of CP-Ti After Thermal Oxidation Treatment”, Journal of Materials Engineering and Performance, 2010, Volume 19, Issue 3, pp 428-433.

The theory using the unified mechanical model, concise mathematical expressions, flexible and applicable to various features of material, its mathematical expression is: 　 　when (1a) when (1b) ,, as the material of the principal stress; as the material of tension and compression ratio; as the shear yield limit; as the compression of material yield limit; as the tensile yield limit of materials; Ductile metal materials Generally is 0.77 ~ 1.0, brittle metal material is 0.33 ~ 0.77, geotechnical materials Generally is less than 0.5, concrete is generally 0.065 ~ 0.100. b(0 ≤ b ≤1) is reflecting intermediate principal shear stress and normal stress on the material damage on the surface of the impact of material strength parameters.
Most metal materials have obvious yield point, and the tensile strength and compressive strength are equal.
England: Elsevier Science LTD, 2005: 701- 706 in Chinese [5] ZHAO Junhai.
Beijing :Science Press，2003.87~91. in Chinese [6] Wei Gu, Yinghua Zhao, Dongwei Shang.
China Civil Engineering Journal, 2005, 38( 10) : 44- 48 in Chinese

Laser shock peening is a mechanical process for treating materials’ surfaces.
If the peak stress of this shock wave is above the dynamic yield strength of the material, the material yields and plastically deforms.
Brockman, International Journal of Fatigue Vol. 21 (1999), p. 719
Noyan, Journal of Manufacturing Science and Engineering, Transactions of the ASME Vol. 126 (2004), p. 10
Molpeceres, et al., Applied Surface Science Vol. 238 (2004), p. 242

., 634050, Tomsk, Russia 2 Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, 2/4, pr.
Similar structure sintered materials are called carbide-steels [1].
Structure studies of SHS-composite powders were carried out in the Centre of collective usage “NANOTECH” of the Institute of strength physics and materials science of Siberian branch of Russian Academy of Sciences (ISPMS SB RAS) by metallographic microscope (AXIOVERT-200MAT) and scanning electron microscope (LEO EVO 50).
Journal of Refractory Metals and Hard Materials. 29 (2011) 49-53
Mukasyan, Combustion for the synthesis of materials, Fizmatlit, Moscow, 2013.

New Chemical Materials, 2002, 30(4): 1-4
Chemistry of Materials, 2000, 12(4): 1049-1052
Research on damping properties of multi-wall carbon nanotube reinforced epoxy resin composite materials[J].Materials Review, 2011, 25(2), 12-15
Journal of Hohai University (Natural Sciences), 2006, 34(5): 561-563
Materials Science and Engineering of Power Metallurgy, 2010, 15(6): 606-610.