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This is especially true for materials that are needed for aerospace, underwater and transportation applications.
Introduction The development of MMCs has been one of the major innovations in materials in the past two decades.
Extrusion process normally involves heating the materials to sub-critical temperature and forcing the materials through the die of required shapes by application of pressure. 2.
Elsevier Science Publishing, London, p. 359-75, (1990)
Ajitprasad, “Development and Mechanical Properties of SiC Reinforced Cast and Extruded Al Based Metal Matrix Composite” Procedia Materials Science-5, pp. 934-943, (2014)

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Abdul: Materials Science and Engineering A Vol. 304 (2001), p. 192 [12] J.M.

Journal of Magnetism and Magnetic Materials, 1996, 160(3): 109-114
Journal of Magnetism and Magnetic Materials, 2009, 321(18): 2865-2870
Metallurgical and Materials Transactions A Physical Metallurgy and, Materials Science, 1997, 28(3): 681-687
Journal of Magnetism and Magnetic Materials, 2015, 379: 161-166
Journal of Magnetism & Magnetic Materials, 1996, 160(4): 143-144.

However their works concentrate on structural stiffness of wing structure on different wing materials and techniques to determine flutter.
Recently, even the low speed aircraft like Human Powered Aircraft (HPA) exhibit flutter with the usage of light weight and flexible materials [2].
From the tensile test conducted on the flat plate composite wing, the specimen possessed the behaviors of composite materials.
“Active flutter suppression in a 2-D airfoil using linear matrix inequalities techniques”, Journal of the Brazilian Society of Mechanical Science and Engineering Vol. 28, No. 1, 2003
[17] Mahzan, M.I., Muhamad S., Mat Ali M.S., Mansor M.S, “Wind Tunnel Testing of Composite Wing Flutter SpeedDue to Control Surface Excitation,” Applied Mechanics and Materials Journal, vol 315, pp 359-363, 2013

First, the raw materials for CaCO3, CuO and TiO2 were prepared and weight according to the stoichiometric ratio for undoped CCTO.
The raw materials were then mixed via ball milling process for 1 hour using an alumina jar.
Zirconia balls were used as the grinding media with mass ratio of balls to raw materials of 10: 1.
Ahmad: Microstructure and dielectric properties of CaCu3Ti4O12 ceramic, Materials Letters, 61 (2007) 1835-1838
Gervais: Grain size effects on the dielectric constant of CaCu3Ti4O12 ceramics, Materials Science and Engineering: B, 129 (2006) 135-138.

[4] Linbo,W. and Jiandong, D, “Compression Molding of Porous Scaffolds with complicated shape for Tissue Engineering”, Polymer Material Science and Engineering,Vol. 25 No.1. (2005), P. 296
,Hao A. and Zhihao, J, “Progress in research of preparation technologies of porous ceramics”,Ordnance Material Science and Engineering ,Vol.28 No.5 (2005), pp.60
Arumaikkannu,” Modelling for randomly oriented multi material additive manufacturing component and its fabrication,” Materials and Design Vol.54 (2014), P.779 [13] R.D.
Hague,” Laser sintering of polyamides and other polymers,” Progress in Materials Science Vol.57 (2012), P.229 [14] B.
Lohfeld,” Dependence of mechanical properties of polyamide components on build parameters in the SLS process,”Journal of Materials Processing Technology Vol.182 (2007), P.477–488 [15] Tancred, D.C., McCormack, B.A.O, “A synthetic bone implant macroscopically identical to cancellous bone”, Biomaterials, Vol.19 (1998), P.2303

Materials.
Journal of hazardous Materials 177 (2010) 70-80
Research Journal of Chemical Sciences 1 (2011) 38-45
journal of Baghdad for science 4 (2012) 680-688
Applied Mechanics and Materials 5 (2014) 1311-1319

Journal of Chongqing University(Natural Science Edition), 2000
International Journal of Refractory Metals and Hard Materials.
Journal of Materials Science, Vol. l8, 1999
Journal of Materials Science, Vol. l8, 1999
Journal of Materials Science，Vol. l8, 1999

The Al2O3 used were produced by SZIKKTI Laboratory for Silicatechemistry and Materials Science Ltd. at 99.99 % (m/m) purity, 5.4 m2/g specific surface and 5 µm mean particle size.
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Materials and methods Experimental Design.
Table 1 TOC, ON and C/N ratio of the investigated soil and organic materials.
Fig. 4 TOC of observed value and predicted value in mixed organic materials.
Yu, Chinese Journal Soil Science Vol. 28 (1997), p. 71 (in Chinese)
Shen, Chinese Journal Applied Ecology Vol. 18 (2007), p. 2503 (in Chinese)