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Phase Change Materials and Their Application Introduction of Phase Change Materials.
Phase change materials (PCM), refer to the substance which can change its phase and provide latent heat with temperature variation [2].
In recent years , composite phase change material is very hot in the field of materials science and energy use, and there are three methods: ● Microcapsule.
Meanwhile, one of the elements belonged to the organic phase change materials in this study is unsaturated acid, some of liquid phase change materials leakage from carrier in the thaw process.
EneaPsulated: International Journal of Energy Research Vol. 26(2002), p. 159-171 [10] Zhiqiang Li, Yan-rong Ren: Chemical Propellants & Polymeric Materials Vol. 6(2004), p. 19-31 (In Chinese) [11] Ye Hong, Xinshi Ge: Preparation of polyethylene- Paraffin compound as a form- stable solid-liquid Phase change material of Solar Energy Materials & SolarCells Vol. 64(2000), p. 37-44 (In Chinese) [12] Yunshen Chen, Kai Chen: Acta Materiae Compositae Sinica Vol. 23(2006), p. 67-70 (In Chinese)

Wang2,b 1,2 School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW 2052, Australia a menghua.xu@student.unsw.edu.au, b b.b.wang@unsw.edu.au Keywords: Electromechanical coupling; vibration; energy harvest Abstract.
In France, Guyomar et al. [10] have studied the use of ferroelectric materials for the collection of surrounding energy.
Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring 2008.
Journal of Vibration and Acoustics.
Smart Structures and Materials & Nondestructive Evaluation and Health Monitoring. 2008.

Low-energy positron beams are essential tools for a large variety of experiments in solid state and surface physics, materials science, and fundamental research.
The properties of moderator materials and different geometries of experimental setups for positron (re)moderation are also discussed.
In solid state physics and materials science, the availability of low-energy positron beams is crucial for the investigation of lattice defects using depth dependent and spatially resolved positron annihilation spectroscopy (PAS).
For high positron production rates, Ta, W, and Pt are good candidates as converter materials due to their high density and high nuclear charge Z; see comparison of high-density materials in Fig. 2.
Therefore, materials exhibiting a negative positron work function will emit thermalized positrons perpendicular to the surface with a discrete energy E+=−Φ+.

Microstructure and corrosion behavior of AZ91-0.4%Nd magnesium alloy Jumei Zhang 1,a,Zhihu Wang 2,b, Wanchang Sun 1 ,Ming Zhu1 1School of Materials Science and Engineering, Xi’an University of Science & Technology, Xian 710054,China; 2School of Materials Science and Engineering, Xi’an University of Technology, Xian 710048,China afeiyue-zjm@163.com, bzhihu_wang@163.com Keywords: AZ91-0.4 %Nd magnesium alloy; microstructure; corrosion behavior Abstract.
Acknowledgements This work was financially supported by the Natural Science Foundation of Shanxi Province (Grant No.2012JQ6020)，the National Natural Science Foundation of China (Grant No. 51201131) and the Doctor Foundation of Xian University of Science & Technology of China (2011QDJ017).
Vol.13 (2003),p. 1253 [3] A.K.Dahle, Y.C.Lee, M.D.Nave, P.L.Schaffer and D.H.Stjohn: Journal of Light Metals.Vol.1 (2001), p.61 [4] J.Edward, K.Vinarci: Light metal age.Vol.4(2001),P.74 [5] J.M.Zhang, B.L.Jiang, Z.H.Wang, S.Yuan, H.Q.Nan and H.B.Luo:China Foundry.
Andrej: Corrosion Science.Vol.50(2008),P.1939 [7] T.
Wang: Corrosion Science.Vol.48(2006),P.1249 [8] L.Wang, B.P.Zhang,T.Shinohara: Materials and Design.Vol.31 (2010),P.857

Obviously, this is an interface problem of bi-material or multi-materials.
Acknowledgement This research was financially supported by the Natural Science Foundation of of Liaoning province (2013024011), the National Natural Science Foundation of China (51371173) and the Doctor Start-up Fund of Liaoning province (20121063).
Geng, The finite element method for solving K factor of TBC interfacial crack, Journal of Aerospace Power. 15(2000) 171-174
Cannon et al, Limitations on the use of the mixed-mode delaminating beam test specimen:effects of the size of the region of K-dominance, Mechanics of Materials. 25(1997) 291-308
Evans, An experimental study of the fracture resistance of biomaterial interfaces, Mechanics of Materials. 7(1989) 295-304.

Manufacturing processes The raw materials were made by a novel bimetallic liquid centrifugal casting.
March 13-14, 2010 [2] Liyun Zheng, Chunqing Li, Lihui Wang and Yafeng Song, Prediction of the plastic fracture mechanical properties on metallurgical composite bimetallic tube with axial crack, Key Engineering Materials. 1367 (2011) 467-469
Suarez, Study of boride-reinforced aluminum matrix composites produced via centrifugal casting, Materials and Manufacturing Processes. 2 (2011) 338
Vimecati, Extrusion of magnesium tubes for biodegradable stent precursors, Materials and Manufacturing Processes. 2 (2011) 140
Chen, Elasticity and plasticity, Science Press: Beijing, China, 2007

Experimental Materials and Reagents.
Journal of Hazardous Materials.
Chemistry of Materials.
Optical Materials.
ACS Applied Materials & Interfaces.

Bruschi, “Metal forming progress since 2000,” CIRP Journal of Manufacturing Science and Technology, vol. 1, p. 2/17, 2008
Zhang, “Two-point incremental forming with two moving forming tools,” Key Engineering Materials, vol. 344, pp. 599–605, 2007
Reddy, “Improvement of geometric accuracy in incremental forming by using a squeezing toolpath strategy with two forming tools,” Journal of Manufacturing Science and Engineering, vol. 133; Jg. 2011, no. 6, p. 10, 2011
Micari, “Incremental forming process for the accomplishment of automative details,” Key Engineering Materials, vol. 344, pp. 559–566, 2007
Zhu, “Robot-based incremental sheet metal forming - increasing the geometrical accuracy of complex parts,” Key Engineering Materials, vol. 473, pp. 853–860, 2011

Thus, when the cladding layer material is extruded to produce the tensile plastic deformation through the regulation of micro-forging, materials deformation stress generated in order to maintain equilibrium near the region of plastic deformation.
Mechanism of crack generation in carbide surface it of laser-clad iron alloys, Materials Transactions, Vol. 43 (2002), No. 6.
Journal of modern physics B.
MateRials Science and Engineering A.
Chinese Journal of Mechanical Engineering, Vol. 38 (2002). pp.249~254.

With the advent of new materials like composites, die geometry and hence the design is becoming increasingly complex.
Material properties of carbonyl iron powder and HDPE composite Viscosity.
Alexandrov, Rheological Behavior of Mixture of Carbonyl Iron Powder and High Density Polyethylene in Key Engineering Materials Vol. 779, pp 31-36 June, 2018 Trans Tech Publications, Switzerland
Miethlinger, A comparative study of viscous flow in slit-exit cross section dies using network analysis, Journal of Plastics Technology, Vol. 8, pp 54-73, 2012
Wang, Incorporating Adjustable Features in the Optimal Design of Polymer Sheet Extrusion Dies, Journal of Manufacturing Science and Engineering, Vol. 128, pp 11-19 Jun 23, 2005.