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Verified by simulation, heat transfer rate of ceramic materials is slower than metal materials, in actual operation of the process, due to different materials have different heat transfer rate, so the temperature distribution of the different materials of motorized spindle are different.
The main shaft material of traditional motorized spindle is metal, but it have larger thermal deformation when the temperature is high, in order to reduce the influence of thermal deformation caused by temperature rising, it has become a new direction of development by using ceramics as spindle materials because of its better thermal performance. we study the basic properties of the ceramic materials and metal materials [5, 7], got that ceramic material has obvious thermal characteristics, showing a low density, a low coefficient of thermal expansion and so on.
Journal of Mechanical Transmission No.12 (2011), p. 84 (In Chinese) [9] S.J.
Liu, Journal of Liaoyang Petrochemical College No.4 (2000), p. 37 (In Chinese) [10] D.P.
Wu, Journal of Shenyang Arch.

Gas Diffusivity in Fractal - Characterized Porous Materials ZHANG Ge 1, a, ZHANG Yunfan 1, b and MA Fei 1, c 1School of Mechanical Engineering, University of Science and Technology Beijing, Beijing, 100083, China a zhangger@foxmail.com, byunfanjang@gmail.com, cyeke@ustb.edu.cn Keywords: porous material; fractal; VOC; diffusion coefficient Abstract.
However, the materials studied in this paper are all isotropic.
Environmental Science & Technology, Vol. 34 (2000), pp. 4193-4198
Journal of Physics A: Mathematical and General, Vol.39 (2006), pp.151-157
Journal of Catalysis, Vol.102 (1986), pp. 401-418

Acknowledgements This work was financially supported by the Scientific Research Foundation project of Liaoning provincial education department (L2013073); Science and Technology Department Foundation project of Liaoning Province (2012220013); Shenyang Science and Technology Bureau Foundation project (F12-019-2-00).
Narita, Maximum frequency design of laminated plates with mixed boundary conditions, International Journal of Solids and Structures. 43 (2006) 4342-4356
Ekic, Layer optimisation for maximum fundamental frequency of laminated composite plates for different edge conditions, Composites Science and Technology. 68, (2008) 537-550
Uzman, Frequency optimization of laminated skew plates, Materials & Design. 30 (2009) 3180-3185
Phan, Stability and vibration of isotropic, orthotropic and laminated plates according to a higher-order shear deformation theory, Journal of Sound and Vibration. 98 (1985) 157–170

Benveniste: A new approach to the application of Mori-Tanaka’s theory in composite materials, Mechanics of Materials, Vol. 6 (1987), pp. 147-157
Benveniste: Mori-Tanaka estimates of the overall elastic moduli of certain composite materials, Journal of Applied Mechanics, Vol. 59 (1992), pp. 539-546
Morris: Elastic constants of polycrystals, International Journal of Engineering Science, Vol. 8 (1970), pp. 49-61
Berge: Critique of two explicit schemes for estimating elastic properties of multiphase composites, Mechanics of Materials, Vol. 22 (1996), pp. 149-164
Baptiste: Non Linear Behavior Micromechanical Multi-scale Modelling of Discontinuous Reinforced Composites, Materials Science Forum, Vol. 426-432 (2003), pp. 3939-3944

Engineering Training System for Jewelry Materials Majors HE Tao and ZHANG Qiang Tianjin Vocational Institute, Tianjin 300410, China gemstone-hetao@163.com Keywords: Materials Engineering; Jewelry Materials; Engineering Training; Training System Abstract.
With the advanced materials industry, makes this especially machinery manufacturing industry has witnessed rapid development and become one of the very important part, therefore, material engineering colleges focus on the development has also become one of the disciplines.
Train and improve their practical ability to adapt to the needs of society has become an important part of college students training, this thesis explores the materials engineering students' professional training system establishment, the students presented material class materials processing skills training methods Manufacturing engineering training through high students' practical ability and engineering sense.
Ziegler: Journal of Applied Behavior Analysis, Vol.20 (1987), p.405-411
Hodges: Journal of Motor Behavior, Vol. 5 (2006), p.357-366.

Introduction Traditionally, materials are selected from a materials database in which properties of materials are tabulated.
Systems-based materials design approach.
The approach is characterized by a confluence of engineering science and mechanics, materials science/physics, and systems engineering.
McDowell: Journal of ComputerAided Materials Design, Vol. 11, Nos. 2-3 (2005), p. 163. 11.
Benson: Journal of Computer-Aided Materials Design, Vol. 12, No. 1 (2005), p. 57. 12.

Ismailova, The effect of surface’s active sites on the reactivity of mineral additives, Scientific journal "Modern Science and Innovation" (Stavropol - Pyatigorsk). 2 (18) (2017) 168-175
Salamanova, Prospects for the use of thermally activated raw materials of aluminosilicate nature, Volga Scientific Journal. 2 (46) (2018) 65–70
Mayants, The use of ash and slag from hydroelectric power plants in the building materials industry, Obzor, Moscow, 1970
Rangan, On the development of fly ash-based geopolymer concrete, ACJ Materials Journal. 101 (6) (2004) 467-472
Sciences, Kiev, 1991

During the past decades, many studies have been reported for the thermal behavior of various PU materials [1-3].
However, the thermal characteristics of PU insulation materials from waste refrigerators are not adequately covered.
Methods Materials.
The raw materials used in this work is obtained from obsolete refrigerators from a WEEE recycling factory.
Journal of Applied Polymer Science, Vol. 102, (2006), p 4149-4156 [12] J.

It can also according to the ecosystem of the material divided into three parts, namely the natural materials that can grow, the nonrenewable materials made by human and the materials that have characteristic between natural materials and artificial materials.
Furthermore, new materials of modified form basically have new features materials and conform to the type of materials.
This type of building skin fully by means of science and technology increasingly appeared in the contemporary architecture.
From the architectural skin to Epidermal architecture,Journal of new buildings, 5 (2008) 50-56
[6] Yong He.The Cognitive construction and construction logic of epidermis material, Architectural Journal ,7(2009)72-73

The Research Status, Superiorities and Prospect of Composite Insulation Materials in China Ruifeng Chen1, a,Hualiang Gu2,b and Yiming Jia3,c 1 zhejiang university of technology, China 2 zhejiang university of technology, China 3 zhejiang university of technology, China a1522290861@qq.com, bghldl@126.com, c357715971@qq.com Keywords: Composite Insulation Materials Superiorities Prospect Abstract: Chinese existing insulation materials mainly included inorganic thermal insulation materials and organic insulation materials, but short of composite insulation materials.
The Research Status of Composite Insulation Materials Composite insulation materials which could be inorganic thermal, organic or mixed materials, would be made of more than two kinds of materials, and complemented with bonding agent.
The Prospect of Composite Insulation Materials Insulation materials had two types, organic material and inorganic material.
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