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Debili Laboratory of Magnetism and Spectroscopy of Solids LM2S, Department of Physics, Faculty of Science, Badji-Mokhtar Annaba University BP12 23200 Annaba mydebili@yahoo.fr Keywords: Al-Cu–Fe, Conventional Solidification, High Frequency Magnetic Induction, Quasicrystals Abstract Structural characteristics and thermal behavior of the conventionally solidified Al80Cu14Fe6, was investigated by X-ray diffraction, optical microscopy, and differential thermal analysis techniques.
Introduction Quasi crystals are a new class of materials characterized by quasi-periodic order.
These materials can be manufactured by mechanical alloying, rapid or conventional solidification, physical vapor deposition and plasma processing.
And Pigeat P., Journal Of Non-Crystalline Solids, 334-335, 509 (2004) [14] Trebin H.
Uzun Materials Science-Poland, Vol. 27, No. 3, 2009

Research on a Technique of Eco-friendly Chemical Conversion Coating RongXia Zhu, Zheng Miao, CuiXiang Wang The Science Institute, Air Force Engineering University, Xi’an, 710051 China zhx40@sohu.com Keywords: magnesium alloy; chrome-free chemical conversion coating; corrosion resistance.
As one of the most lightly metallic materials, magnesium alloy become one of a late-model and the most viable green eco-friendly materials which has currently been re-recognized and exploited.
Materials Chemistry and Physics, 2003,80:191-200
Journal of Applied Electrochemistry,2003,33:15-21
Corrosion Science, 2004, 46:1467-1477

Introduction The molecular dynamics simulation technique is a very powerful tool for studying of physical properties of materials in macro and nano scale.
Kart et al., International journal of modern physics B. 18, (2004), p. 2257 [2] S.
Ahmadi, Computational Materials Science 49 (2010), p. 21 [6] J.
Moradi, World Academy of Science, Engineering and Technology 78 (2011), p. 190 [7] S.
Cottrell (Eds.), Electron Theory in Alloy Design, Institute of Materials, London, (1994) 191

Fabrication and Ultraviolet Characterization of Polyimide Film Panpan Zhang 1, a, Jiaqi Lin 1, 2, b and Wenlong Yang1,c 1College of Applied Science, Harbin University of Science and Technology, Harbin, 150080, China 2Key Laboratory of Engineering Dielectric and Its Application, Ministry of Education, Harbin, 150080 aa851386031b@163.com, bljqi405@163.com, cyangwenlong1983@163.com Keywords: polyimide, optical properties, microwave Imidization, film Abstract.
Experimental Raw materials.
The monomers and solvent were used as the raw materials without further purification.
As is known to all, the optical band gap, to a certain extent, can reflect the electrical band gap which is a key index to measure the insulation performance of materials.
The Journal of Physical Chemistry B. 2009, 113, 9143-9150.

Danovaro1,e 1 Department of Marine Sciences, Polytechnic University of Marche, Ancona, Italy 2 Department of Chemistry, Chemical Engineering and Materials, University of L'Aquila, Italy a f.beolchini@univpm.it, ba.dellanno@univpm.it, cl.rocchetti@univpm.it, dveglio@ing.univaq.it, e r.danovaro@univpm.it Keywords: sediment, metal stabilization, bioleaching Abstract.
Materials and Methods Metal bio-mobilisation experiments were carried out under aerobic conditions for two weeks, aimed at metals leaching from contaminated sediments.
Clesceri: Journal of Hazardous Materials Vol. 85 (2001), p. 127 [2] W.H.
Danovaro: submitted to Environmental Science and Technology (2008)

Various dynamic fracture toughness test methods have been developed to study fracture behavior of materials.
Since shear stress has no role to play in the fracture process of brittle materials and fracture mainly occurs under normal stress, the energy required for fracture increases.
This is similar to fracture toughness result of homogeneous materials, i.e. fracture toughness decreases with increasing specimen thickness due to decrease of deformation around the crack tip [14].
Fernández-Canteli et al.: Composites Science and Technology, Vol. 62 (2002), p.1315
Li: International Journal of Solids and Structures, Vol. 49 (2012), p. 366

Multi-objective Design of Process Parameter Based On Game Theory Yan Lia ,He-ping Wangb, Fu-yu Wangc School of Management Science & Engineering, Anhui University of Technology, Maanshan, P.R.Clina aliyanshangshang@sina.com Keywords: process parameter, multi-objective optimization, game theory, Nash equilibrium Abstract.
(1) Workpiece parameters: material is 45 steel, d=40mm,l=150mm,=3.2m,a=0.2mm
(2) Tool parameters: Materials is cemented carbide, ,
Journal of Economic Dynamics&Control,Vol.24,p.483~499,2000
Journal of Shenyang University

PVDF Piezoelectric Film Accelerometer For Low Frequency and Ultra-low Frequency Zhou Wan 1, a , Tao Ji 2,b , Yuanyuan Shang 1 1Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650051, China 2Institute of mechanical and electrical information, xi'an, 710065, China aynkgwz@yahoo.com.cn, b243260741@qq.com Key words: Low-frequency vibration, Accelerometer, PVDF piezoelectricity film, new pattern structure.
The working principle of the PVDF piezoelectric accelerometer PVDF piezoelectric accelerometer is use the piezoelectric effect of PVDF piezoelectric materials to achieve the measurement of vibration acceleration, the core part is the structure of inertial elastic sensitive element, the block diagram shown in Figure 2.
Journal of Structural Engineering, 2003, 129(2) [5] Billing J R.
Canadian Journal of Civil Engineering, 1984(11)；833—843 [6] Wang Xiuyan.
Preparations and Properties Research of the PZT/PVDF Piezoelectric Composite Materials.

In the experiment the following form of the Johnson-Cook material equation was used, as suggested by [2, 10-14]: (1) where σeq- equivalent stress, - plastic strain, - plastic strain rate, - referential plastic strain rate, T- temperature of workpiece, Tmelt- melting temperature of the workpiece material, Troom- temperature of the machining environment, A- yield stress, B- tensile stress, C- sensitivity coefficient of the plastic strain, n- the hardening factor , m- the softening coefficient.
The specific values of some components of the equation for the examined material quality can be found in [12, 13].
International Journal of Advanced Manufacturing Technology, Vol. 63, 2013, pp. 881-893
Hungarian Journal of Industrial Chemistry.
Material Science Forum.

Destructive methods are based on removing some piece of material from the part to release the stress and measuring how the part deforms to restore the equilibrium state.
The workpiece material is forging aluminum based alloy AA2117 (AlMgSiCu group).
Residual Stress in Aluminium Alloy Forgings, Journal of Engineering Materials and Technology, 2008
Materials Science Forum, 2000 [6] Petrash, L.V., Quenching medias, Mashgiz, Moscow, 1959
Effectively Quenching Thick Sections Of High Strength Aluminum Alloys Using Polyalkylene Glycol Quenchants, Journal of ASTM International, Volume 5, Issue 10 (November 2008) [10] Information on http://houghton-nn.ru/