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Introduction Metal matrix composites are the engineered materials produced by mixture of two or more unlike materials, at least one of which is basically a metal.
Wettability is the major problem in fabricating these materials and this is due to the presence of a film oxide at the surface of the aluminium [7].
[2] Manoj singla, D.Deepak Dwivedi, Lakhvir singh, Vikas chawla, Development of Aluminium Based Silicon Carbide Particulate Metal Matrix Composite, Journal of Minerals & Materials Characterization & Engineering, Vol. 8, No.6, , pp 455-467,2009 [3] J.
C, Review – Reinforcement coatings & interfaces in aluminium MMC, Journal of Materials Science, 33,3491-3503,1998
Xu, Casting of SiC Reinforced Metal Matrix Composites, Journal of Materials Processing Technology, 63, 358-363,1997

Experimental Materials A commercially produced plain-weave silk fabric was scoured with an aqueous nonionic surfactant solution at a temperature of 50°C for 30 minutes, thoroughly rinsed and air dried at room temperature.
Judia Harriet Sumathy: International Journal of Chemistry and Pharmaceutical Sciences Vol. 1 (2013), p. 502
Akmci: Journal of New Results in Science (2013), p. 19
Lee: Journal of Applied Polymer Science Vol. 103 (2007), p.251
Vikov´a: The Journal of the Textile Institute.

Acknowledgement This study has been supported by Chinese National Science Foundation under project #51078261.
References [1] N.N.Eldin and A.B.Senouci: Journal of Materials in Civil Engineering.
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Vol. 85 (1988), p. 217 [6] C.C.Chen and S.M.Hsu: Journal of Mechanics.

Many researchers have developed new designs and materials for SODIS container.
Experimental procedure Materials.
Hocking, The classification, preparation, and utility of degradable polymers, Journal of Macromolecular Science, Part C: Polymer Reviews, 32 (1992) 35-54
Park, Antioxidants and their migration into food simulants on irradiated LLDPE film, LWT-Food Science and Technology, 40 (2007) 151-156
[8] European Commission, Commission Regulation (EU) No 10/2011 of 14 January 2011 on plastic materials and articles intended to come into contact with food, Off J Eur Comm, 50 (2011) 1-89.

The results gave some interesting information on the choice of tool in the FSW of MMC materials.
Experimental method Materials.
Murr, Materials Characterization, 52,(2004), 65- 75 [4] P.
McClure, Self-optimization in tool wear for friction-stir welding of Al 6061_/20% Al2O3 MMC, Materials Science and Engineering A349 (2003) 156_/165 [7] Muratore C., Voevodin A.
J., Veprek S., Development of 4ovel Coating Technology by Vacuum Arc with Rotating Cathodes for Industrial Production of nc-(Al1−xTix)4/a-Si344 Superhard 4anocomposite Coatings for Dry, Hard Machining, Plasma Chemistry and Plasma Processing, Vol. 24, No. 4, 2004 [10] Fernandez G.J., Murr L.E., Characterization of tool wear and weld optimization in the friction stir welding of cast aluminium 359+20%SiC metal matrix composite, Materials Characterization 52 (2004) 65- 75 [11] Shindo D.J., Rivera A.R., Murr L.E., Shape optimization for tool wear in the friction stir welding of cast A359+20% SiC MMC, Journal Of Materials Science 37 (2002) 4999 - 5005

Guo, T.C.Lee, et al: International Journal of Materials and Manufacturing Processes, (1997), No. 6, pp. 1133-1148
Kuo: International Journal of Materials Processing Technology, Vol. 140 (2003), pp. 298-302
Wang, et al: International Journal of Materials Processing Technology, Vol. 129 (2002), pp. 56-59
Wang: International Journal of Key Engineering Materials, Vol. 257-258 (2004), pp. 489-494
Kuang: International Journal of Materials and Manufacturing Processes Vol. 17 (2002), No. 1, pp. 45-55.

Shaban3,c 1Department of Physics College of Education for pure science Ibn-Al-Haithem, University of Baghdad, Baghdad, Iraq. 2Department of Physics, Faculty of Science and Health, Koya University, Koya KOY45, Kurdistan Region, Iraq 3College of Science, University of Baghdad, Baghdad, Iraq.
The research and engineering communities hope that superconductive materials will be employed in the power transmission, without any losses along the way.
Although these materials contain barium and yttrium, they form a family that changes the proportions of copper and barium, such as YBa2Cu4Oy (Y-124) or Y2Ba4Cu7Oy (Y-247).
Single crystal structure of Y- B- C- O or (RE)- B- C- O bulk high-temperature superconductors, where RE is a rare Earth element, These materials can generate large magnetic fields that are usually larger than those produced by traditional permanent magnets.
As a result, these materials are only useful for practical applications when processed in a large format [13-16].

Materials and Methods The general situation of study area.
Progress in Natural Science, 2008, 18(10): 1279-1284
Resources Science, 2007, 29(3): 25-30
Journal of Natural Resources, 2004, 19(1):55-61 [8] Costanza R, d’Arge R, de Groot R, et al.
Journal of Natural Resources, 2003, 18(2): 189-196.

Trial Fabrication of Carbon Fiber-Reinforced Thermoplastic Honeycomb Sandwich Materials Hitoshi Takagi1,a, Kenya Nishimura2,b and Antonio N.
Many types of core materials are proposed and used until now [3].
Experimental Method Materials.
Before gluing the three components, all the materials were cleaned with solvent (acetone).
Marengo: International Journal of Mechanical Sciences, Vol. 47 (2005), p. 1301

In addition, Ovshinsky et al.[7] found that amorphous materials could obviously enhance the electrochemical properties of electrode.
The specific capacity of Y and Mg codoped amorphous nickel hydroxide is up to 332.46 mAh·g-1 at 0.2C and 60˚C, showing its potential applications as electrode materials for secondary alkaline batteries.
Acknowledgments This project is financially supported by National Natural Science Foundation of China (No. 20563001), Guangxi Science Research and Technology Developing Foundation (No. 0842003-12).
Materials Research Bulletin, 2008, 43(11): 2827-2832
Materials Chemistry and Physics, 2009, 114(2-3): 618-623