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Introduction Composite materials are widely used in structures wherever light weight and high strength are the primary design drivers [1].
Operating environment plays a major role in the performance parameters of structures made of composite materials.
Journal of Composite Materials Vol. 3 (1969), p. 398
Journal of Mechanics of Materials and Structures Vol. 4 (2009), p. 1127
International Journal of Composite Materials Vol. 3 (2013), p. 46.

This study presents new machining types of advanced materials.
There materials are high strength, stainless and heat resistance steels, alloys based Nickel, alloys based Titanium, ceramics, composites, and other non-metallic materials.
Ultrasonic Assisted Drilling for Composite Materials Fig. 5.
The main problem in machining composite materials is delamination.
Tang, A cutting force model for rotary ultrasonic machining of brittle materials, International Journal of Machine Tools & Manufacture. 52 (2012) 77-84

The outgassing rates curve of several vacuum materials is shown in Fig.2.
According to the experiment theory of the OT method, the outgassing rates of some materials was measured.
The outgassing rates curve of several vacuum materials is shown in Fig.5.
The outgassing rates curve of several vacuum materials is shown in Fig.8.
[J] Chinese Journal of Vacuum Science and Techonology,2011,31:368~371.

Materials whose crystallites, particle sizes are smaller than 100 nm are commonly named nanocrystalline, nanostructured, nanosized materials.
The experimental conditions used in the preparation of these materials play an important role in determination of the particle size of the product.
XRD study is most important tool used in nano materials science and it is one of the primary techniques used by mineralogists and solid state chemists to examine the physico-chemical make-up of unknown materials and it is an important as characterization tools in solid state chemistry and materials science.
[2] V.Parthasarathi, G.Thilagavathi, International Journal of Pharmacy and Pharmaceutical Sciences, 3, 4 , 392-398 (2011)
[9] R.Wahab, S.G.Ansari, Y.S.Kim, H.K.Seo, G.S.Kim, G.Khang and H.S.Shin, Materials Research Bulletin, 42, 1640-1648 (2007)

Influence of Corn Straw Fibers and Polymer Latexes on Vibration Damping Property of Cement-Based Materials Liguang Xiao, Yuanchao Li, Ruibo Li College of Material Science and Engineering, Jilin Architectural and Civil Engineering Institute, Changchun 130118, P.
The experimental results showed that the vibration damping ratio of cement- based materials with organic polymer latexes is 149.77% higher than that of pure cement-based materials, the vibration damping ratio of cement-based materials with corn straw fiber is 152.58% higher than that of pure cement-based materials, the vibration damping ratio of cement-based materials with organic polymer latexes and fibers blending is 191.08%, also higher than that of pure cement-based materials.
Introduction The cement-based materials such as concrete and cement mortar, are the largest amount of engineering materials currently used in the world.
ACI Materials Journal，1995，92（3）：291~295 [2] Mobashor B.
Selecting durable repair materials：performance ceiteria[J].

Design of the spindle The selection of the spindle material.
It is rational to select the spindle material considering the security, easy processing, and the assuring of strength, stiffness and heat distortion in the process of material selection of spindle.
The former journal diameter of the lathe spindle is determined by the motor power N.
(Liaoning University, Liaoning, 2009) [2] Bert R Sorgensen, Yung C Shin: Transaction of the ASME Journal of Manufacturing Science and Engineering, 1998,1:387-399 [3] Yhland.E: Journal of Tribology, 1992,114 :p348-359 [4] Hongqi Li, Yung C.Shin: International Journal of Machine Tools & Manufactured. 2004,44 p364-374 [5] Chi-wei Lin, Jay F.
(Kunming University of science and technology, Kunming) [10] Hu Ailing: Master Thesis.

Machining of work-piece as in the form of erosion of materials is based on the Faraday’s law of electrolysis.
Optimization of Electrochemical Machining Process Parameters Using Taguchi Approach.International Journal of Engineering Science and Technology 5, 999-1006
BabuRao.Microstructure and mechanical properties of aluminum–fly ash nano composites made by ultrasonic method.journal of Materials and Design 35 (2012) 55–65
International Journal of Engineering Research and Applications (IJERA) 2, 192-197
Influence of Input Parameters on Characteristics of Electro Chemical Machining Process.International Journal of Applied Science and Engineering 11, 13-24

The materials or composite to be used as bipolar plate must meet U.S.
Antunes, Materials Selection for Bipolar Plate for Polymer Electrolyte Membrane Fuel Cells Using the Ashby Approach, Journal of Power Sources (2012), in press
Muchtar, The Effects of Thickness Reduction and Particle Sizes on The Properties Graphite – Polypropylene Composite, International Journal of Mechanical and Materials Engineering (IJMME), Vol.6 (2011), No.2, 194-200
Antunes, Mara C.L. de Oliveira, Gerhard Ett, VolkmarEtt, Carbon Materials in Composite Bipolar Plates for Polymer Electrolyte Membrane Fuel Cells: A Review Of The Main Challenges To Improve Electrical Performance, Journal Of Power Sources 196, 2011
Aggarwal, Effect Of Different Carbon Fillers On The Properties Of Graphite Composite Bipolar Plate, Journal Of Materials Processing Technology,203,2008

Convection drying is well applied in the drying of materials especially for food industry where the wet materials are dried using hot air [12, 13, 14].
Materials and Methods Materials.
This test was done using 1-g SAP and 2-g SAP composite materials.
Kabiri, Superabsorbent Polymer Materials: A Review, Iranian Polymer Journal. 6 (2008) 451-477
of Polymer Science. 2009, 12(2), 602-608

(1) , is respectively Heat Conductivity Coefficient of two composition materials; , is respectively volume ratio of above two composition materials.
Journal of Tongji University (Natural Science). 2006,34(11):1451~1456 (In Chinese) [2] Wanyang GAO ; Kexu HU; Zhoudao LU.
Journal of Tong ji University(Natural Science).2009,37(5):575~582 (In Chinese) [5] Fuxiong Wan, Wenzhong Zheng.
Advanced Materials Research. 2011,255-260:574~579 [6] Wenzhong Zheng, Fuxiong Wan, Shiguang Li.
ASTM Journal of Materials. 1970, 5(1):47~74 [10] Wenzhong Zheng; Fuxiong Wan; Shiguang Li.