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It has been applied to the topology of charge density, especially electrons, for the purpose of analyzing the bonding properties of bulk solid materials.
The properties of solid materials can be usually being predicted from the valence and bonding preferences of its constituent atoms.
There are four main bonding can be found in semiconductor materials: ionic, covalent, metallic and molecular.
These materials have a single bonding type or mixtures of bonding type such as covalent and metallic or covalent and ionic.
Density functional for coulomb systems.International Journal of Quantum Chemistry 24: 243-277

Today, science is focusing on full integration of electronics into textiles.
Different materials are used to fulfil this task.
One drawback in using polyester fibres is that the material has a relatively low glass transition and decomposition temperature, compared to metallic gate fibres.
Journal of Applied Polymer Science, 2004. 91(6): p. 4064-4071
Journal of Applied Polymer Science, 2003. 88(5): p. 1225-1229

Acknowledgement This paper was elaborated with the financial support of the Czech Science Foundation project GA13-18870S and European Union's "Operational Programme Research and Development for Innovations", No.
CZ.1.05/2.1.00/03.0097, as an activity of the regional Centre AdMaS "Advanced Materials, Structures and Technologies".
International Journal of Materials and Product Technology. 2011. 42(3/4). p. 209 - 218.
Materials Science Research International. 1998. 4 (3). p. 131 – 140.
Applied Mechanics and Materials. 2013. 2013(248). p. 370 - 378.

Tire materials are multiplayer, asymmetric and anisotropic.
Materials of sidewall, inside liner, apex, and tread are pure rubber with differing hardness.
Antonio: Tire Science and Technology Vol.36(2008), p. 43 [4] K.
Bohara: Tire Science and Technology Vol.31 (2003), p.104 [5] G.
Cheng: Journal of Reinforced Plastics and Composites Vol.25 (2006), p.1059 [7] J.

The hardfacing process normally uses materials consisting of a metallic matrix material and hard particles as reinforcement.
These materials exhibit a high resistance to temperature.
Meskinis, Influence of Plasma Transferred Arc Process Parameters on Structure and Mechanical Properties of Wear Resistive NiCrBSi-WC/Co Coatings, Materials Science 17 (2011) 140-144
Kempulraj, A novel procedure for fabrication of wear-resistant bushes for high-temperature application, Journal of Materials Processing Technology 141 (2003) 60-66
Alves Albuquerque Rosa, Influence of oscillation parameters on crack formation in automatic Fe-B hardfacing, Journal of Materials Processing Technology 65 (1997) 272-280

Table 1 Material parameters for AA 5182-O [10].
Hayat, Improving profile accuracy in SPIF through statistical optimization of forming parameters, Journal of Mechanical Science and Technology, 25 (2010), 77-82
Hartley, An assessment of various process strategies for improving precision in single point incremental forming, International Journal of Material Forming, (2010) DOI 10.1007/s12289-010-1004-9
Van Houtte, Small-scale Finite Element Modelling of the Plastic Deformation Zone in the Incremental Forming, International Journal of Material Forming, 1 (2008) 1159-1162
Van Houtte, MK modelling of sheet formability in the incremental sheet forming process, taking into account through-thickness shear, International Journal of Material Forming, 2 (2009) 370-382

With the rapid development of LED, thermal performance of traditional plate is not in conformity with the requirements, so people use Al2O3 as heat sink materials[5].But the sintering temperature of pure Al2O3 is so higher, resulting in the abnormal grain growth, effect the mechanical properties of the material[6].
Stoichiometric ratios of Al2O3: SiO2: Li2CO3 = 99.2%: 0.4%: 0.4%, This three raw materials were mixed and placed in a ball mill was ball milled for 4 hours, drying.
By the quantum theory, Quantization of lattice vibration energy is called phonon[17, 18], Al2O3 ceramics materials mainly rely on phonon to achieve the purpose of the thermal conductivity.
(New York: Wiley) p189 [17] Chao Wang, Chaoqun Peng, RChu Peng, Kun Yu, Chao Li 2007 The Chinese Journal of Nonferrous Metal. 17 1229 (In Chinese) [18] Zhijun Zhang, Fuming Xu, Yi Tan 2009 Materials Review.23 56 (In Chinese) [19] Charles Kettle. 2004 Introduction to solid state physics(1st Ed.)
(New York:Wily) p327 [20] Qisheng Wu, Anlan Cai, Yaqun Yang 2006 Physical Properties of Materials (Vol.1) (Shanghai: East China university of science and technology press) p81 (In Chinese) [21] Alshaikhi A, Srivastava G P 2007 Diamond Relat Mater 16 1413

Equation 17 and 18 are the controlling formulations of isotropic soft magnetic materials [17], and its present curve is present as Figure 6(a).
[8] F.Cajner, B.Smoljan, D.Landek, Journal of Materials Processing Technology 157-158 (2004) 55-60
Janghorban, Journal of Materials Processing Technology 189 (2007) 1-12
Sisson, Jr, Journal of Materials Engineering and Performance, Volume 12(5) October, 2003:589-596
[11] Hiroki Kawaguchi, Masato Enokizono, Takashi Todaka,Journal of Materials Processing Technology 161 (2005) 193-198

Fig.4 The NC precise micro-hole vibration drilling system The experimental conditions are shown as follows: spindle speed, 15000rpm; feed rate, 2μm /r; vibration frequency, 750Hz; vibration amplitude, 2μm; drill bit, Carbide, Φ0.5mm; Workpiece material, 45 steel; lubrication and cooling, 10 mobile oil.
Acknowledgements This work was financially supported by Shandong provincial natural science foundation (ZR2010EL028), science research funds(Z201025) and Dr.
Journal of Materials Processing Technology, 2003, 140 [5] T.
Journal of Materials Processing Technology, 2003,143-144

Acknowledgements All the research works are supported by the Natural Science Foundation of Ningbo of China under granted No. 2010A610129.
Salimi: Advanced Materials Research, Vol.154-155(2011), pp. 1705-1712 [2] P.
Qiu: Journal of Mechanical Engineering, Vol. 46(2010) No.1, pp. 169-174 [6] H.Z.
Fan: Journal of Xi’an Jiao Tong University, Vol . 40(2006) No.7, pp.863-865 (In Chinese) [7] P.
Zeng: Applied Mechanics and Materials, Vol.37-38(2010), pp.870-874