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Several authors reported research on the welding of different materials by using microwave heating [7-10] and starting with that the behavior of the materials during welding is important to be investigated.
The pure polymers are transparent materials for microwaves due to the lack of the polar particles.
Smyth – Microwave Heating of Materials with Low Conductivity – 10.1098/rspa.1991.0061 Proc.
Froment, Journal of Materials Science, Microwave welding of thermoplastics, 20011215, Volume 36, Issue 24, pp 5935-5954 [10] C-Y.
Poeppel, Polyethylene Gradient Material, Processing and Properties, Material Science Forum, vol. 308-311, 101-106, 10.4028/www.scientific.net/MSF.308-311.101  

Jun-hang Guo [2] studied the ductile fracture of 5052 aluminum alloy through experiments and established a modified Rousselier model to predict the shear failure of materials.
Sheppard, A.Jackson, Constituive equations for use in prediction of flow stress during extrusion of aluminium alloys, Materials Science and Technology, 13 (3) (1997) 203-209
[2] Guo Junhang, Zhao Shengdun, Ri-ichi Murakami, et al, Experimental and numerical investigation for ductile fracture of Al-alloy 5052 using modified Rousselier model, Computational Materials Science, 71 (2013) 115-123
[3] D.H.Liu, H.P.Yu, H.P.Yu, C.F.Li, Comparative study of the microstructure of 5052 aluminum alloy sheets under quasi-static and high-velocity tension, Materials Science and Engineering A, A551 (2012) 280-287
[9] Rajeev Kapoor, Sia Nemat-Nasser, Determination of temperature rise during high strain rate deformation, Mechanics of Materials, 27 (1998) 1-12.

Chanthima3,4,e* 1Department of Physics, Faculty of Science, Silpakorn University, Nakhon Pathom 73000, Thailand 2Department of Physics, Kyungpook National University, Daegu 702-701, Korea 3Science Program, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, Nakhon Pathom 73000, Thailand 4Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom 73000, Thailand aw.nuanthip@gmail.com, bhongjooknu@gmail.com, cch_onanong@hotmail.com, dmink110@hotmail.com, enatthakridta@gmail.com Keywords: Dysprosium; Glasses; Photoluminescence; Optical absorption Abstract.
But in glass form, LiREBO: Ln3+ was also attractive material, but it was not much investigated.
Huang, Growth and spectral properties of Er3+:Li6Y(BO3)3 crystal, Materials Letters 60 (2006) 418–421
Salin, Crystal growth, Luminescent and lasing properties of the ytterbium doped Li6Y(BO3)3 compound, Optical Materials 27 (2005) 1681–1685
Kang, A red-emitting heavy doped phosphor Li6Y(BO3)3:Eu3+ for white light-emitting diodes, Optical Materials 33 (2011) 1297–1301

Baek, Mechanical alloying process of 93W-5.6Ni-1.4Fe tungsten heavy alloy, Journal of Materials Processing Technology ,1997, Volume 63, pp. 292-297
Miguel, Mechanical-property relationships of Co/WC and CoNiFe/WC hard metal alloys, International Journal of Refractory Metals and Hard Materials.
Materials Science and Engineering: A, Volume 379, Issues 1–2, 15 August 2004, Pages 148-153
Crystallization and thermal stability of mechanically alloyed W-Ni-Fe noncrystalline materials Courtney in Materials Science and Engineering A315, 2001, Vol 315, Num 1-2, pp. 166-173, [14] S.H.
Skorodzievski Structure and Properties of Nanostructured Vacuum-Deposited Foils of Invar Fe– (35–38 wt %) Ni Alloys, Journal of Materials Science & Technology 31 (2015) 1079–1086.

Electronic Structure Study of Metal Complex {1,1'-[ o-Phenylenebis(nitrilomethylidyne)]di-2-naphtholato}copper(II) Ruiting Xuea , Shougang Chenb , Guanhui Gao c, Yansheng Yind* Institute of Material Science and Engineering, Ocean University of China，Qingdao 266100, PR China a email: xuert@163.com b email: sgchen2009@yahoo.com cemail: ggh___001@163.com d emaiI: yys2006@ouc.edu.cn Keywords: metal complex; density functional theory; B3LYP calculation, optic materials Abstract: The complex {1,1'-[ o-phenylenebis (nitrilomethylidyne) ] di-2-naphtholato} copper(II) was optimized by the DFT method at B3LYP/LANL2DZ level, and the frontier molecular orbitals, natural bond orbitals, nonlinear optical properties and Mülliken charge population of the optimized complex were exploited and analyzed.
The calculated results show that the complex has stable structure and it keeps some potential applications in optic materials field. 1.
Introduction: Schiff Base metal complexes have attracted increasing interest due to their extensively applications in biochemistry, material science, catalysis, encapsulation, activation, transport and separation phenomena, hydrometallurgy, etc.[1-3].
It can be concluded from the first hyperpolarizability value that the complex and its analogues may be a kind of nonlinear optic materials.
Niu, et a1, Journal of Electrochemical Society [J], 2001,148 (5):208 [4] Y.

Journal of Xi’an University of Science & Technology, 2004, 24(3):9-11
Journal of Liaoning Technical University (Social Science Edition), 1995, 14(2):40-43
Anhui University of science and technology, 2008
Journal of China Coal Society, 1993, 18(4):1-12
Science Press, 2002:29-30.

Materials and Methods Materials.
The raw materials of Smooth Cayenyoungas pineapple was selected from pineapple planting base of Xuwen county of Guangdong Province, and blade types are divided into old leaves and young leaves.
D., A review on pineapple leaf fibers,sisal fibers and their biocomposites [J] .Macromolecular Materials and Engineering, No 289 (2004),p. 955-974
Song: JOURNAL OF TEXTILE RESEARCH, No 1 (1998), p.62-63
Wan, et al: GUANGDONG AGRICULTURAL SCIENCES, (2009)

Moreover, groundnut shells progress with epoxy resin to invent composite materials [11]. pMDI Polymeric methylene diphenyl diisocyanate is an alternate bonding, it is thermosetting without formaldehyde emission [12].
It could reduce biowaste and add value by producing roof replacement materials with flexible and low-complexity manufacturing processes.
The study of roof tile replacement materials continues by studying additional properties.
International Journal for Research in Applied Science & Engineering Technology (IJRASET). 2015. 3(10). 426-432
Wijnendaele, Adhesive systems used in the European particleboard, MDF and OSB industries, Wood material science and engineering. (2017) 1-13

Therefore, in this paper, the experiment of new polishing technology is described as using self–made nano-polishing wheel without abrasive to polish widely used metal materials in industry: hardened steel 45, YG6 horniness alloy and LY12 aluminum alloy on high precision polishing machine.
Experiment parameters: spindle rotary speed 200-400 r/min, pressure 0.1-0.5 Mpa; sample materials: hardened-steel 45, YG6 horniness alloy , LY12 aluminum alloy , dimension: hardened-steel 45 � 10×5 mm2 (dia.
Acknowledgements This project is supported by National Natural Science Foundation of China and Provincial Natural Science Foundation of Jilin.
Shi: Material Science Base (Mechanic Industry Press, China 1999).
Feng: Metal Physics (Science Press, China 2000).

Acknowledgement Authors are grateful to the Malaysia Rubber Board for hosting this study under SEAC vote number S2013/NM/20149240468, and providing both materials and instruments.
Chantara Thevy, Characterization of epoxidized natural rubber/ethylene vinyl acetate (ENR-50/EVA) blend: Effect of blend ratio, Journal of Applied Polymer Science. 99 (2006) 1504-1515
Coalescence under the influence of particle water surface tension, Journal of Colloids Interface Science. 152 (1) (1992) 1-11
Abd-El-Messiah, Biodegradable blends based on polyvinyl pyrrolidone for insulation purposes, Journal of Applied Polymer Science. 124 (2012) 3879-3891
Saha, Preparation and characterization of poly(vinyl alcohol)-poly(vinyl pyrrolidone) blend : A biomaterial with latent medical application, Journal of Applied Polymer Science. 127 (5) (2013) 3560–3568