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Under the influence of load rate, the sea ice can perform as ductile or brittle materials, and exhibits a transition between the two cases in crushing failures[5].
It can divide the continuous materials into discrete element with bonding function, then model the breakup process of the continuum.
The discrete element model for granular materials simulation was established in the 1970s, and has been improved recently.
Canadian Journal of Civil Engineering, Vol.11(1984), p.82-91 [3] G.W.
Cold Regions Science and Technology, Vol.48(2007), p.1-14 [5] D.

The materials are processed by carburization.
The materials processing will become more difficult.
At mainland, the material of globoidal cam is 38CrMoAl or 45# steel.
Fu: Journal of Shanghai University (English Edition) Vol.4 (2000), pp. 54-59
Ho: Computing and Information Science of Engineering Vol.2 (2002), pp.98-105

Wood Pulp Fibers Grafted with Polyacrylamide through Atom Transfer Radical Polymerization Xiumei Zhang1,2,a, Jianfeng Ji1,b, Yanjun Tang1,c,Yu Zhao1,d 1College of Materials and Textile, Zhejiang Sci-Tech University, Hangzhou, 310018, P.
China 2Jiangsu Provincial Key Laboratory of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing, 210037, P.
Experimental Materials.
Acknowledgements This work was financially supported by the open fund of Jiangsu Provincial Key Laboratory of Pulp and Paper Science and Technology (201022).
Gruber: Internationale Papierwirtschaft IPW, n 6(2002), p. 73 [2] Kazayawoko M., Balatineca J.J., Journal of Materials Science, 1999, Vol.34, p6189 [3] S.

Introduction In order to meet the demand of high temperature performance of part, more and more advanced higher temperature materials, such as the high-temperature alloy and high-temperature melting point material are used.
Fig.1 Schematic diagram of the PLDM process Fig.2 The equipment photo Results and Discussion Material and condition.
The experimental material was nickel-chromium-cobalt high-temperature alloy powder, and the main composition was shown in Table 1.
Danforth Jafari: Journal of the European ceramic society Vol. 21 (2001), p. 1485
[6] Zhang Hai ou, Qian Yingping, Wang Guilan, Zheng Qiguang: Science in China: Series E technological sciences Vol. 49 (2006), p. 238.

Introduction Co-based alloys are of considerable technological importance as the basis of high-temperature alloys, as well as magnetic materials with high saturation magnetization, which makes the materials widely used in established military and commercial gas turbine engines for combustion cans, transition ducts and other high temperature components.
In recent years, a series of Co-based amorphous or nanocrystalline alloys such as CoSi [2,3] have been studied as better materials for hydrogen storage.
Acknowledgements This work was financially supported by the Key Program of Science and Technology of Ministry of Education (Grant No. 209069).
Ishida: Science.
Wang: International journal of hydrogen energy Vol.35 (2010) p. 1669 [4] G.W.

Novel zirconia composite coatings fabricated by twin hybrid plasma spraying Heji Huang, Keisuke Eguchi, Makoto Kambara and Toyonobu Yoshida Department of Materials Engineering, The University of Tokyo Hongo 7-3-1, Bunkyo-ku, Tokyo 113-8656, Japan huang@plasma.t.u-tokyo.ac.jp Keywords: thermal barrier coatings, thermal plasma spraying, thermal plasma PVD, hybrid plasma Abstract.
Jordan: Science Vol.296 (2002), p. 280 [2] J.R.
Journal of applied physics 54 (1983), Issue 2, pp. 640/46
Science and Technology of Advanced Materials 4 (2003), Issue 2, pp. 159/65
Science and Technology of Advanced Materials 4 (2003), Issue 6, pp. 617/22 (a) (b) Fig.5 Composite layered coating of Al2O3 and YSZ 0.0 1.5 3.0 4.5 6.0 7.5 0 5 10 15 20 25 30 35 40 45 50 PVD layer thickness (µm) Alumina feeding rate (g/min) Fig.6 Effect of powder feeding rate on the thickness of PVD layers 500 nm500 nm AlAl22OO33 YSZYSZ

Effects of Preparation Technology on the Microstructure and Thermal Conductivity of Cu-11Ni-2W Alloy LU Baiping a, LIU Canchengb, XU Huic Aeronautical Science and Technology Key Lab. of Aeronautical Materials Processing, Nanchang Hangkong University, Nanchang 330063，P.
Experimental Procedure Experimental materials are copper powder (99.95 wt% Cu, average diameter 74 µm), nickel powder (99.97 wt% Ni, average diameter 74 µm) and tungsten powder (99.95 wt% W, average diameter 74 µm).
Acknowledgements This work was financially supported by Open Fund of Aeronautical Science and Technology Key Lab. of Aeronautical Materials Processing in Nanchang Hangkong University (zk200901002), the fund of Aviation Science (2010ZE56015) and the Project of Education Department of Jiangxi (GJJ08199).
References [1] Wenhai Zhang: The Chinese Journal of Nonferrous Metals, Vol. 14 S1（2004）, P.63~71 [2] Basheng Liu: Nonferrous Metals，Vol.6 (2002 ), P.11~18 [3] E. van Stein Callenfels, R. van Laar: Iron and Steel, Vol. 42 , No .3 ( 2007), P.79~82 [4] Junpan Lu, Xianghai Li: The constitution diagram of processing copper and copper alloy, (Central South University Publications, China, 2010)

Emami found that laser processing of the aluminized steel leads to a considerable increase in its corrosion resistance compared to both uncoated and merely aluminized materials [3]; F.
Hasan: Materials Science and Engineering Vol. 472 (2008), p. 157-165 [3] B.
Nava: Materials Letters Vol. 60 (2006), p. 775-778 [5] P.
Hejazi: Journal of Materials Processing Technology Vol. 124 (2002), p. 345-352 [8] E.
MA: Materials Science and Technology Vol. 18 (2002), p. 1201-1208

Experimental material, test instrument and experimental condition Materials.
The frictional Performance of PLA fiber The friction coefficient of PLA fibers with different materials.
The friction coefficient of PLA fiber with different frictional materials is listed in Table 5.
Table 5 Friction coefficient of PLA fiber with different frictional materials Frictional materials Fiber roller Metal roller Rubber roller Static friction coefficient 0.337 0.35 0.41 Dynamic friction coefficient 0.325 0.336 0.38 The dynamic and static friction coefficient of PLA fiber is 0.325 and 0.337.
[5] Sen Liu:Tianjin textile science.

Materials Cement.
Chemical composition and properties of materials.
Peng: Journal of Wuhan University of Technology, Vol. 27 (2005), p. 40
Yao, etc: Key Engineering Materials, Vol. 400-402 (2009), p. 415
Huang: New Building Materials, Vol. 20 (2004), p.13.