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El-Shazly1,3,b, Marwa Elkady1,4,c 1Chemical and Petrochemical Engineering Department, Egypt-Japan University of Science and Technology (E-JUST), Egypt 2Materials/Metallurgical Engineering Department, Kwame Nkrumah University of Science and Technology, KNUST, Ghana 3Chemical Engineering Department, Faculty of Engineering, Alexandria University, Alexandria, Egypt 4Fabrication Technology Department, Advanced Technology and New Materials Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA City), Alexandria, Egypt a*mohammed.fuseini@ejust.edu.eg, bahmed.elshazly@ejust.edu.eg, cmarwa.f.elkady@gmail.com Keywords: polyaniline, conducting polymer, colloidal suspension, doping, zeta potential, electrophoretic mobility.
Demokritou, “Preparation, characterization, and in vitro dosimetry of dispersed, engineered nanomaterials,” Nat.
Forum, vol. 860, no.

Journal of Applied Engineering Science, Vol. 12 (1), (2014), pp 1-10 [5] S.
Journal of Applied Engineering Science, Vol. 12 (2), (2014), pp 121-128 [15] D.
Journal of Applied Engineering Science, Vol. 12 (1), (2014), pp 37-44 [16] V.
Advanced Materials Research Vols. 941-944. pp 1871-1875 [20] N.
Magazine of Civil Engineering. 8(34) (2012), pp. 4-14 [21] A.

The hard ceramic particulates obstruct the advancing dislocation front, thereby strengthening the matrix [6].
Tarterini, Forging of the AA6061/23 vol.% Al2O3p composite: Effects on microstructure and tensile properties, Materials Science and Engineering A, 513-514(2009) 176-184. [5] T.
Abou El-khair, The structure and properties of A356 alloy reinforced by zirconia particles fabricated by different techniques, PhD Thesis, Faculty of Engineering, Cairo Universty, Egypt (1998). [14] L.
Kang, Characterization of age-hardening behavior of eutectic region in squeeze-cast A356-T5 alloy using nanoindenter and atomic force microscope, Materials Science and Engineering A, 425 (2006) 28-35. [18] M.
Abdel -Azim, Effect of Al2O3 particles on the microstructure and sliding wear of 7075 Al alloy manufactured by squeeze casting method, Journal of Materials Engineering and Performance, 13(2) (2004) 135-143.

The Effect of Hydrochloric Acid on the Surface Area, Morphology and Physico-chemical Properties of Sayong Kaolinite Clay Nurul Aini Edama1, a, Alawi Sulaiman1, b, Ku Halim Ku Hamid2, c, Miradatul Najwa Muhd Rodhi2, d, Mohibah Musa2, e,Siti Noraida Abdul Rahim1, f 1Faculty of Plantation and Agrotechnology, Universiti Teknologi MARA, Malaysia 2Faculty of Chemical Engineering, Universiti Teknologi MARA, Malaysia aainiedama@yahoo.com, bdr_alawi@salam.uitm.edu.my, cmiradatul@salam.uitm.edu.my, emohibah@salam.uitm.edu.my, faida7627@yahoo.com Keywords: HCL, Acid treatment, Sayong kaolinite clay, BET Surface area, XRF Abstract.
Acknowledgements This work was financially supported by Universiti Teknologi MARA (UiTM) Excellent Funds (600-RMI/ST/DANA 5/3/Dst 495/2011 & 475/2011) and Ministry of Higher Education (MOHE) Malaysia, Fundamental Research Grant Scheme (FRGS) (600-RMI/ST/FRGS 5/3 Fst 2/4/2010) to support this study and provide the financial assistance to attend the 2nd International Conference on Advanced Material Engineering and Technology 2013 (ICAMET 2013).
Singh, Mineralogical, crystallographic and morphological characteristics of natural kaolins from the Ivory Coast (West Africa), Colloids and Surfaces: A Physicochemical Engineering Aspects 363 (2010) 98-104 [2] V.
Sayong clay material for biocatalyst immobilization, Material Science Forum 737 (2013), 145-152 [12] J.
Onukwuli, Studies of the effects f hydrochloric acid-leaching on the structural and adsorptive performance of Nteje (Nigeria) Clay, International Journal of Engineering Research & Technology 1 (3) (2012) 1-11 [18]E.

Marghitu1,c 1Department of Mechanical Engineering, Auburn University, AL 36849, USA aozdescermik@auburn.edu, bhamid.ghaednia@auburn.edu, cmarghitu@auburn.edu Keywords: elasto-plastic impact, flattening contact model, permanent deformation, MATLAB Abstract.
In this case, more advanced contact models are needed for the impact of bodies.
Johnson, An experimental determination of the contact stresses between plastically deformed cylinders and spheres, Engineering Plasticity, Cambridge University Press.
Thornton, A theoretical model for the contact of elasto-plastic bodies, Journal of Mechanical Engineering Science, 2002, 216(4), 421-431
Thornton, Energy dissipation during normal impact of elastic and elastic-plastic spheres, International Journal of Impact Engineering, 2005, 32(1), 593-604

Fractal Model of the Influence of Expanded Clay Concrete Macrostructure on its Strength Sergii Kroviakov, Doctor of Engineering, Ass.
Prof.1,a, Volodymyr Volchuk, Doctor of Engineering, Ass.
Prof.2,b, Mykhailo Zavoloka, PhD, Prof.1,c 1Odessa State Academy of Civil Engineering and Architecture, 4 Didrihsona Str., 65029 Odessa, Ukraine 2Prydniprovs’ka State Academy of Civil Engineering and Architecture, 24a Chernyshevsky Str., 49600 Dnipro, Ukraine askrovyakov@ukr.net, bvolchuky@gmail.com, clab.psk.ogasa@ukr.net Keywords: expanded clay concrete, strength, fractal, structure, macrostructure, trend, model.
Advanced Materials Research, 163-167, 1085-1089. https://doi.org/10.4028/www.scientific.net/AMR.163-167.1085 [4] Volchuk, V.
Materials Science Forum, 968, 20-25. https://doi.org/10.4028/www.scientific.net/MSF.968.20 [7] Zhao, L., Wang, W., Li, Z. & Chen, Y. (2015).

Gömze 2,b 1 Department of Ceramics and Silicate Engineering, University of Miskolc, Hungary 2 IGREX Engineering Service Ltd., Igrici, Hungary a femgomze@uni-miskolc.hu; bigrex2009@yandex.ru Keywords: hetero-modulus, ceramics, alumina, CMC, c-Si3N4, diamond, nanoparticles, wear, thermal shock Abstract: A novel approach to obtain ceramic matrix composites with extreme high mechanical wear and thermal shock resistance abilities is presented.
Norton: Ceramic Materials, Science and Engineering, Springer Science + Business Media, LLC., New York (2007) [18] L.
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Deformation microstructures and strengthening mechanisms of an ultrafine grained duplex medium-Mn steel. 2013, Materials Science & Engineering A, 562:89-95 [3] Shi J, Sun X, Wang M, et al.
Enhanced mechanical properties of a hot stamped advanced high-strength steel treated by quenching and partitioning process. 2011, Scripta Materialia, 64(8):749-752
General relationship between strength and hardness.2011, Materials Science & Engineering, 529C: p.62-73
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Effect of block size on the strength of lath martensite in low carbon steels [J].2006, Materials Science & Engineering A, 438(1):237-240

Aleksandrov et al., Tightness of fixed connections hydraulic systems, Mechanical engineering, Moscow, 1977
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Abellan-Nebot, Study of face milling of hardened AISI D3 steel with a special design of carbide tools, The International Journal of Advanced Manufacturing Technology. 40(1) (2009) 12-25
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Engineering with Mathcad: Using Mathcad to Create and Organize your Engineering Calculations, Butterworth-Heinemann, Oxford; Burlington, MA, 2006

Podnebennaya, A three-phase high-frequency AC/DC converter with power-factor correction, Russian Electrical Engineering. (2017) 219-222
Furushima, Production Process of Biocompatible Magnesium Alloy Tubes Using Extrusion and Dieless Drawing Processes, Journal of Materials Engineering and Performance. (2016) 2528-2535
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Kheireddine, New Approach of Metals Ductility in Tensile Test, Journal of Applied Mechanical Engineering. (2016) 1000225