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Introduction Chemical mechanical polishing process (CMP) is the most effective method which is currently used to implement local and global material planarization, and it widely applied in flattened surface treatment of hard brittle materials and IC process [1-3].
Acknowledgements This research work was provided by the National Natural Science Foundation of Jiangsu Province (BK20080605) and China Postdoctoral Science Foundation funded project (No.20060390984).
Chinese Journal of Semiconductors Vol. 26(2005),p.606 [4]A.Michael, Fury.
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Journal of Materials Science, 2007, 42(20): 8418-25
Journal of Porous Materials, 2018, 25(2): 341-9
Journal of Materials Engineering, 2012, volume 2(32-7(6)
[19] ANDRONIC L.P.D, DUTA A Journal of sol-gel science and technology [J].
Journal of Sol Gel Science & Technology, 2013, 66(3): 472-80

The well-known Johnson-Cook material model is used.
In the simulation, the tool and workpiece material is selected from in built database.
[5] Vikram Kumar CH, R. and Ramamoorthy, B. (2007) ‘Performance of coated tools during hard turning under minimum fluid application’, Journal of Materials Processing Technology, Vol. 185, pp.210-216
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Journal of Advanced Manufacturing Technology, 38 (5-6):441–446.

Materials and methods Materials High-amylose maize starch (Hylon Ⅴ{TTP}8548 ) was donated by National Starch and Chemical Co.
(Bridgewater, NJ, USA).α- Linolenic acid(80%) was purchased from Beijing Health Science & Technology Co.
:Journal of Qinghai University (Natural Science).
[13]Hongzhuo Tan, Bin Tan and Hong GAO.: Journal of Food Science and Biotechnology.Vol.27.p.21-27(In Chinese) [14]Jing Liu, Guanghua Zhang.: China Condiment.(2008),p.36-39(In Chinese) [15] Bengang Li, Liming Zhang.: Progress in Chemistry.
Vol.22 (2010), p. 1161-1168(In Chinese) [16]William R Morrison.: Journal of the Science of Food and Agriculture, Vol.29 (1978), p.365-371

Materials and Methods Materials Spectrophotometer model 721(Shanghai AoXi Technology Instrument Co., LTD.); pHS-3 Meter (hanghai Analytical Instrument Factory); Digital tachometer (SES-101); Tributyl phosphate (Jingnan HengHui Chemical Co., Ltd.
Journal of Membrane Science, 2013, 430PP: 188-195
Chinese Journal of Environmental Engineering, 2012, 6(3)PP: 811-816
Science & Technology in chemical industry, 2012, 20(5)PP: 28-30
Environmental Science and Technology, 1999, 12(4)PP: 35-37

Table1 The crystal structure data of YNi2 and YMgNi4 Material Group (No.)
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Journal of Alloys and Compounds.Vol.461(2008),P. 228 [4] Aoki K, Li X G and Masumoto T.
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The YAG: Ce3+ luminescent materials with high thermal stability, particularly in the application of high energy excitation conditions, its performance is superior to conventional sulphide fluorescent materials.
Journal of rare earths, 2005,23:27-29
Journal of Inorganic Materials[J]. 2008,23(6):1131-1134
Optical Materials,2008, 31(2): 261-267
[7] Blasse.G, Grbmaier.B.C, Luminescent Materials.

So these novel hydrogels have the potential to be used as materials for tissue engineering and drug delivery.
International Journal of Pharmaceutics, 355, 1–18
Materials Science and Engineering C, 29, 25-28
Materials Science and Engineering C 26 (2006), 635 – 638
Journal of Bioactive and Compatible Polymers, 24(2009), 560-576.

Numerical implementation 3.1 materials data Table 1 shows the geometry parameters and the material of the tool and Table2 presents the property of base material alloy A7075-T651.
The temperature gradient is large around the welding zone and seriously changes the materials properties.
Journal of Materials Processing Technology In Press, Corrected Proof, doi:DOI: 10.1016/j.jmatprotec.2010.08.016
International Journal of Machine Tools and Manufacture.
Journal of Nanchang institute of aeronautical technology (natural sciences). vol.17(3),2003

At present, there are many materials satisfying the requirements, such as pure graphite bipolar plate, injection bipolar plate, expanded graphite bipolar plate, composite bipolar plate and metallic bipolar plate.
ASYS/LS-DYNA is a general explicit nonlinear dynamic analysis of finite element program, and can simulate the real world of various complicated nonlinear (large displacement, several big change and large strain), material nonlinearity (140 kinds of materials) and dynamic simulation of nonlinear (50) contact.
Acknowledgment The authors would like to thank the National Science Foundation of China (Grant Number: 50975214) and the Wuhan Science & Technology Bureau (Grant Number: 201010621229) for funding this study.
Journal of Hydrogen Energy,Vol.34 (2009),pp.990-997
:Journal of Chinese Society for Corrosion and Protection, Vol.23 (2003),pp.375-379.