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The quality of the hole produced during the drilling of composite materials is one of the controlling factors for the resulting joint strength and integrity of the structural component.
Even though FRP composite materials provide many advantages over traditional metallic alloys, they pose many challenges in trimming and drillingstructural component fabrication.
The summary of the experimental conditions, work materials, and equipment used in this study is tabulated in Table 1.
Kao, " Drilling of Graphite/Bismaleimide Composite Material" Journal of Materials Engineering and Performance, Vol.8, No.3, 1999, pp.330-338 [2] M.
Soundarapandian, “Acoustic Emission Based Drill Condition Monitoring during Drilling of Glass/Phenolic Polymeric Composite using Wavelet Packet Transform”, Material science and Engineering A, Vol. 412, pp. 141 – 145, 2005

Experimental materials are X70 and X80 spiral seam submerged arc welded steel pipes.
Materials and Design, 2009, 30(5): 1712-1717
Journal of central south University (Science and Technology), 2014,45(9): 2985-2992
Journal of central South University (Science and Technology), 2015, 46(7): 2432-2438
ShangHai: Shanghai Institute of Materials, 2007

Sandwich panel is material that consists of lightweight core material and two metal faceplates.
Synthetic resin is a mixture of non-metallic materials of organic compounds, which can be formed into various forms of commercial needs.
The stresses of the sandwich panel structure was also less than conventional steel structure and they were below the yield stress of the materials; being the stress of sandwich panel was much lower than the yield stress.
Kumar, Applications of sandwich plate system for ship structures, IOSR Journal of Mechanical and Civil Engineering (2016) 83-90
The 2nd Internasional Seminar on Science and Technology (ISST), Surabaya, 2016

Currently, there are two important materials composition based on nature recourses which namely alumino-silicate-glass (ASG) and CaO-MgO- Al2O3- SiO2 (CMAS) system already contributed for excellent insulating materials.
The glass-ceramic in the CMAS system can be nominated as excellent dielectric material which make them excellent insulating materials. [11].
Most of CMAS systems discussed in the previous studies are using conventional raw materials.
International Journal of the Physical Sciences . 6(30) ( 2011) 6781-6790
Journal of Materials Science. 41 (2006) 733-761

Ya-fei, MAO technology and development, Journal of Materials Review 12 (5) (2000) 394-396
Wielage et al., Corrosion and wear behaviour of alumina coatings obtained by various methods, Journal of Physicochemical Mechanics of Materials 46 (5) (2010) 23-29
Tverdokhlebov, Improving the efficiency of microarc oxidation of aluminum-silicon alloys, Journal of Vector Science, TSU 2 (2015) 86-93
Kamyshanskii, Formation of structure and properties of coatings deposited by microarc oxidizing on parts fabricated from aluminum alloys, Journal of Metal Science and Heat Treatment 189 (2011) 931-936
Hong, The contrast to the corrosion resistance of the aluminum alloy treated by MAO and anodization, Journal of Materials Protection 36 (1) (2004) 26-29

To find the corrosion progress the weight loss and corrosion rate is found in the sample material to apply vortex tube.
Material and Methodology The samples have been coated with different type of chemicals.
Journal of Thermofluids, 13 (22) 100133
International Research Journal of Modernization in Engineering Technology and Science, 4(5), 4611-4614
Journal of Procedia Engineering. 28 (4). p. 369-378

The strength of slot wedge has directly influence on the stability and security of generator rotor group, nuclear power slot wedge should be used with good structure and conductive materials.
And the performance of materials is the most important designing factor of the nuclear power slot wedge (Table 1).
They are usually used as the initial basis to choose the composition and processing, and evaluation the quality of materials.
Sun, Journal of Zhenjiang Shipbuilding Institute.
Journal of East China Shipbuilding Industry Institute (natural science edition), Vol.16 (2) (2002), p.21-26

Research on hot deformation behavior of 3003 Al alloy prepared by different melt-treatment methods Guiqing Chen1, a, Gaosheng Fu1, b,*, Hongling Chen1,c, Wenduan Yan1, d, Chaozeng Cheng2, e, and Zechang Zou2, f 1 College of Materials Science and Engineering, Fuzhou University, Fuzhou 350002, Fujian, P.R.
The θ ~ σ plot can well describe the microstructure changes during materials deformation, and determine characteristic value of the flow curves.
Cheng: Corrosion Science, Vol. 5 (2009) p. 283 [7] W.C.
Qian: Journal of Rare Earths, Vol. 20 (2002) p. 61 [14] J.R.
Hartley: Journal of Materials Processing Technology, Vol. 118 (2001) p. 356 [15] E.

Materials and Methods Preparation of biosorbent.
[3] Ali Rıza Kul and Hülya Koyuncu:Adsorption of Pb(II) ions from aqueous solution by native and activated bentonite: Kinetic, equilibrium and thermodynamic study , Journal of Hazardous Materials, Vol. 179 (2010) Nos.1-3, p.332-339 [4] J.X.
[5] H.Jiang, X.Q.Wei and X.J.Hu: Screening and identification of resistant heavy metal Fungi and study of its characteristics, Journal of Liaoning Normal University(Natural Science Edition),Vol. 30 (2007) No.1, p.100-103
[6] Y.Q.Tang, H.Niu and J.Lin: Mechanism of Lead(Ⅱ) Biosorption By Waste Mycelium of Penicillium Chrusogenum.Journal of Sichuan University(Engineering Science Edition),Vol. 33 (2001) No.3, p. 50-54
Biomass, Biochemical Engineering Journal, Vol. 27 (2006) No.3, p.310-314 [8] Neetu Tewari ,P.

There are over 100 chemical companies in the northwestern part of Jiaozuo, which include chemical plants, textiles, pulp and paper, mining and building materials factories, whose discharging pollutants are mainly chloride, sulfate, nitrate and heavy metal.
Chemical source refers to sewage and waste residue from chemical industries, mining industries, textiles and building materials factories as well as some domestic wastewater; the machining processing source refers to wastewater of mechanical plating industry; agricultural source is using of fluoride-containing pesticide and fertilizer result in the enrichment of fluoride in the soil.
References [1]MELLOUL A J,COLLIN M:submitted to Journal of Journal of Environment Management(1988)
[2] Su D,Tang D.Y,Liu L.F:submitted to Journal of Ecology and Environmental Sciences(2009) [in Chinese]
[3] PHILIP A B, ERIK R C: submitted to Journal of Environmental Science and Technology( 2004)