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Materials and Test Method Experimental steel plates were from hardened steel coils after cold-rolling which didn’t have a continuous annealing treatment.
According to the rules from GB/T 228-2002 which named metallic materials-tensile testing at ambient temperature, the tensile testing was made by using Zwick/Roell tensile testing machine.
Materials Science and Technology, Volume 18, No.5, May 2002, p.541-547 [2] JIANG Hai-tao, KANG Yong-lin, YU Hao.
International Journal of Minerals, Metallurgy and Materials.
Journal of Materials Processing Technology, 2001, (111):103-106.

Introduction Grinding is a widely employed finishing process for different materials.
Moreover, some other researchers made grinding wheels intermingled with lubricant materials to reduce the heat generated at the grinding zone. [6-10].
Titanium alloy is one of the typical difficult-to-machine materials.
Acknowledgements The authors gratefully acknowledge the financial support of this research by National Basic Research Program of China (No. 2009CB724403), Aeronautical Science Foundation of China (No. 2008ZE52054), and NUAA Research Funding (No.
Rao: Materials and Manufacturing Processes, Vol. 19 (2004), p. 177 [6] Krueger, K.

They have weight-age in determining the renal calculi formation because urinary stone is made up of organic material, mainly collagen, and inorganic materials like calcium oxalates, hydroxyapatite and other phosphates.
Using the data, it is possible to compare with the conventional electro-ceramics and other such bio-materials, their polar nature, hence their ability to store charges and their dielectric loss.
Palanichamy, Microhardness and acoustic behavior of calcium oxalate monohydrate urinary stone, Materials Letters. 62 (2008) 2351-2354
Cocks, Microhardness studies of renal calculi, Materials Letters. 3 (1985)111-114
Singh, Synthesis, characterization, thermal and dielectricproperties of pure and cadmium doped calcium hydrogen phosphate, Materials Chemistry and Physics. 135 (2012) 158-167

Materials and Methods Experimental site.
Journal of Environmental Quality, 2000, 29(4): 1095-1103
Soil Science Society of America Journal, 2008, 72(2): 514-523
Shuikexue Jinzhan/Advances in Water Science, 2002, 13(3): 308-312
Chinese Journal of Soil Science, 2010, 41(2): 390-393

Test Materials and Experimental Methods Test materials.
There are two kinds of materials used in the test: Si3N4 and Cr26.
Acknowledgements The research is supported by the National Natural Science Foundation of China (project No: 50676044) and Beijing Natural Science Foundation (project No: 3072008).
Xu, et al.: Key Engineering materials.
Liu: Journal of Hydraulic Engineering.

Heilongjiang Science and Technology Information,2012,（4）：256-256
Journal of Construction Engineering and Management U.S.,2001,(1):82-86
Hebei Journal of Industrial Science and Technology,2006,23（3）：139-142
Industrial Engineering Journal, 2003（11）：49-53
Sichuan Building Science, 2006（2）：168-171

Particularly in cold forging, materials with high formability that can accommodate severe deformation are required [2].
Mayer: Metals and Materials, Vol. 2 (1986), p. 213
Nedbal: Journal of Nuclear Materials, Vol. 264 (1999), p. 257
Nedbal: Journal of Nuclear Materials, Vol. 264 (1999), p. 257
Shibata: Key Engineering Materials, Vol. 51-52 (1991), p. 31

The model not only considers the spatial structure of three unit cell, but also considers effect of bending and the different section shape on the elastic properties of materials among three unit cells.
Journal of Composite Material, 1989, 23(9): 890-911
Composite Materials: Testing and Design, Philadelphia, 1986: 404-421
Journal of Composite Material, 1986, 20(1): 472-484
Composites Science and Technology, 1997, 57(3): 293-305

Generally, the microstructure or micro-phase separation structure of polyurethane materials is strongly dependent on its chemical structure[4].
Experimental Materials.
Lee: Journal of materials science Vol. 35 (2000), p. 1579-1583 [2] J.H.
Satguru: Journal of Applied Polymer Science Vol. 67 (1998), p. 1437-1448 [5] C.G.
Mechin: Journal of Polymer Science: Part B: Polymer Physics Vol. 42 (2004), p. 473-492 [7] K.

Ahmad1 1School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad, Pakistan 2Institute of Industrial Control Systems, Islamabad, Pakistan azahid0474@gmail.com, btanvermughal@gmail.com Keywords: AP/AL/HTPB composites, filers particle size, mechanical properties, ballistic properties Abstract: Mechanical and ballistics properties are a measure of the performance of AP/Al/HTPB composites.
Introduction Highly loaded polyurethane based composite materials have an important role in military and the space applications [1].
Experimental Materials: Solid particles were comprised of Ammonium perchlorate (AP) in trimodal size distribution (size range 8µm to 250µm) and Aluminum powder in the sizes of 13 µm and 24 µm.
Jawalkar, et al, “Influence of Bicurative on Processibility of Composite Propellant”, Defience Science Journal, Vol. 57, No.5 (2007), p. 669-675
[6] Suni Jain, Mehilal, et al, “Size and Shape of Ammonium Perchlorate and their Influence on Properties of Composite”, Defience Science Journal, Vol. 59, No.3 (2009), p. 294-2