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It is because the interior of Cacl2/ENG material will be repositioned under the pressure exerted when the molding sample is prepared by using the extrusion method.
Beijing: Science Press, 2007, 2-18 [2] Wang Kai, Wu Jingyi, Wang Ruzhu.
Journal of Shanghai Jiaotong University, 2008, 42(1): 106-109 [3] Tian Bo.
Thermal Conductivity Anisotropy of Expanded Graphite / LiCl-NaCl Phase Change Material [J].
Functional Materials, 2013, 16(44):2409-2415

Due to the local high temperature and non-uniform temperature field, the shrinkage velocity of raw material are inconsistent during the cooling process.
a the whole grid of modle b the grid of weld line Fig.1 3D module of T-type tube Fig.2 T-types tube and grid of weld joint The establish of mathematical model[6] 3D welding process is a very strict nonlinear transient process, the governing equation of heat conduction is as follow: (1) Above: ： the material density；： the material specific heat；：thermal conductivity: :Internal heat source strength.
Considering the heat exchange between workpiece and ambient air during the cooling process after welding, the equation of heat exchange between boundary and ambient medium is : (3) Above : ：heat-transfer coefficient of weld joint；：ambient medium temperature，this article take normal air as medium；，，：direction cosine of boundary normal Establish of 3D solid model and grid division By equation (1), (2), (3), we know that the welding process is a nonlinear transient heat-transfer process; the various parameters of the material are all functions of temperature.
Welding Journal, 1983, 62(12):346-355
Mechanical Science and Technology,2005,24(12): 1396-1399

However, during this change, the six coordination of the material in region B almost maintained, but the material's crystalline order experienced certain variations.
Zhang, Journal of Materials Science Letters 19 (2000), p. 439

The elastic Modulus of material is 68890N/ mm2, and the density is 1e-6Mg/ mm3.
The elastic Modulus of material is 10GPa, Poisson’s ratio is 0.3, and the density is 1.0t/m3.
The elastic Modulus of material is 68.89GPa, Poisson’s ratio is 0.3, and the density is 1.0kg/cm3.
Acknowledgment This research is supported by National Natural Science Foundation of China (10872012) and Foundation of National Key Laboratory for Structural Analysis of Industrial Equipment in Dalian University of Technology（GZ1008）Foundations.
[4] Cheng Gengdong, Zhang Dongxu, Topological optimization of plane elastic continuum with stress constraints [J], Journal of Dalian University of Technology, 1995, 35(1): 1~9.

Material and experimental methods The material used is a commercial grade SAE52100 bearing steel.
Murakami, Journal of the Society of Materials Science, Japan Vol. 55, pp. 719-725

Ultrasonic velocity is directly related to elastic modulus, density and Poisson’s ratio of the material [4].
When the ultrasonic signals come into the materials and permeate through the interface with different acoustic impedance, the boundary components in the medium with different velocity and density will reflect, refract or scatter ultrasonic wave, resulting in the attenuation of ultrasonic signals [6].
Table 1 Heat treatment process of TC4 titanium alloy specimens material heat treatment process TC4 1150°C, 1h water quenching (WQ) 1150°C, 1h oil quenching (OQ) 1150°C, 1h air cooling (AC) 1150°C, 1h furnace cooling (FC) The equipment used for ultrasonic measurements was the similar as mentioned in literature [7].
Acknowledgements This work was supported by Open Fund of Aeronautical Science and Technology Key Lab. of Aeronautical Test and Evaluation, Nanchang Hangkong University (HK2009003).
Peng, Journal of Da lian University of Technology. vol. 44 (6) (2004) p.802.

Yttria stabilized zirconia (YSZ) has been a popular TBCs material.
Composition of powders for plasma spraying Powder details Content (wt%) Coating type Material Ni Co Cr Al Y ZrO2 Y2O3 Bond coat CoNiCrAlY 32 bal 21 8 0.5 - - Top coat PSZ - - - - - bal 8 shape was shown in Fig.1.
References [1] QI Hongyu: Chinese Journal of aeronautics.
Vol.119(1997), p. 506 [5] He M.Y, Hutchinson J.W: Materials Science and Engineering.

Introduction Pipeline failure has many reasons, besides the construction and material defects, corrosion, third-party damage, design defects, misuse, geological disasters, pipeline fatigue failure and other reasons, there is an important reason is that the stress is higher than the design strength of pipeline requirements arising from the failure of damage [1].
Materials and methods Suspended pipeline description.
Schematic diagram of the pipeline model is shown as Fig.3. 300m 300m 80m Fig. 3 Schematic diagram of the pipeline model Table 1 Force conditions of pipeline model Pipe sections Force conditions Length Vacant segments Pipe gravity, medium gravity 80m Buried segments Soil horizontal, vertical pressure and friction force 600m Table 2 Pipeline parameters Material Diameter (mm) Wall thickness of straight pipe (mm) Corrosion (mm) Natural gas density (kg/m3) API X80 1016 26.2 1 95 Insulating layer thickness (mm) Pressure (MPa) Operating temperature (℃) Installation temperature (℃) Allowable stress (MPa) 0 10 55 20 555 Table 3 Soil parameters Friction coefficient Soil density (kg/m3) Buried depth to top of pipe (m) Friction angle(°) Yield displacement factor Overburden compaction multiplier Thermal expansion coefficient 0.6 2650 1.50 37 0.015 5 11.214 Results and discussion Suspended pipeline stress distribution and displacement.
F., “Study on buttresses distance of gas pipelines in the deviated well based on stress analysis method,” Advance Journal of Food Science and Technology., Vol. 5, No.9, 2013, pp.1249-1254

This kind of slip is made up of alloy 125MY material, which can be grinded and milled easily.
The casing material is P110.
The slip, cone and casing material in table 1: Table 1 The selection of the slip system material parameters elasticity modulus Poisson’s ratio Yield limit slip 0.26 950 cone 0.26 900 casing 0.26 758 Packer cone is restricted by packer body, only move along the axial and radial movement is restricted.
(in Chinese) [4] Lan Wang: Applied Science and Technology, Vol. 27-2(2000), p. 14. ( in Chinese) [5] Shuhua Kan: Oil Field Equipment, Vol. 34-1(2005), p. 12. ( in Chinese) [6] Di Wang, Shiping He：Journal of Experimental Mechanics, Vol. 21-3(2006), p. 12.

Synthesis of crosslinker containing sulfone group and its crosslinking with styrene Huan-yang Yu College of Material Science and Engineering, Jilin Jianzhu University, Changchun 130118, P.
Introduction The crosslinked polystyrene beads used widely as packing material for liquid chromatography, as ion-exchange resins and as imprinted adsorbent for selective separation of hazardous organic compounds because of their excellent mechanical properties and good chemical stability [1-4].
Experiments Raw materials and instruments. 4,4’-dihydroxydiphenyl-sulphone and methacryloyl chloride were obtained from Aldrich Company; Hydroquinone, tetrahydrofuran (THF) and triethanolamine were purchased from Beijing Chemical Reagent Company; Poly (vinyl alcohol) (PVA) was purchased from Shanxi Sanwei Co.
[2] Qin L., He X. , Zhang W., Li W., Zhang Y., Journal of Chromatography A, 2009, 1216(5), 807