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Prabhakar, Effect of Particle Size of SiC in Aluminium Matrix on Workability and Strain Hardening Behaviour of P/M Composite, Materials Science and Engineering: A 504:25(1-2) 200913-23
Surappa, Processing Microstructure Properties of Al Based Metal Matrix Composites, Journal of Key to Engineering Materials 104-107 1995 259-274
Das, Abrasive Wear Behaviour of Al–4.5wt% Cu/ (Zircon Sand +Silicon Carbide) Hybrid Composite, Journal of Composite Materials 43 2009 2665–2672
Shan, Effect of Process Parameters on the Solidification Time of Al-7%Si Alloy Castings Produced by VAEPC Process, Materials and Manufacturing Processes Journal 22 2007 879-886
Chawla, Development of Aluminium Based Silicon Carbide Particulate Metal Matrix Composite, Journal of Minerals & Materials Characterization & Engineering 8 2009 455-467

The theoretical development of the size effect mainly due to experimental study of metallic materials.
Recent experiments revealed that the metallic materials in the micron and submicron scale has a strong size effect. [1-7] at the same time, many studies show that significantly strain gradient effect exist in the geotechnical medium, [8-9] These articles only study macro-mechanical indicators.
"Matrix - strengthen Particle" model Soil belongs to the friction materials, the shear deformation associated with soil micro-cracks.
The fitting curve of different soil yield stress Conclusions Though soil is a very complex natural materials, it have been depart as the matrix particles and the strengthening particles in this article.
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Bentonite has been regarded as buffer material for high-level radioactive waste (HLW) disposal all over the world, plenty of decay heat released from HLW is conducted through butter material, therefore, thermal conduction of compacted bentonite is very important.
Acknowledgements This work was financially supported by project of Key Laboratory of Radioactive Geology and Exploration Technology Fundamental Science for National Defense (2010RGET09).
Ledesma: journal of geotechnical and geoenvironmental engineering Vol. 1(2009), p.121 [10] A.M.
Tang: Applied Clay Science Vol. 41 (2008), p.181 [11] M.V.
Lloret: Journal of Thermal Analysis and Calorimetry Vol. 84 (2006), p.325

According to the unified strength theory, eight kinds of expressions of the strength criterion can be applied to various kinds of geotechnical materials [3].
The Unified Strength Criterion of Rock and Soil Materials Mathematical expressions for geotechnical materials unified strength theory is : (1) In which, ， ， is the angle of internal friction of pile soil, c is the cohesion of the soil around pile, b is reflect the intermediate principal shear stress and normal stress on the surface of the corresponding effect on the material damage influence degree coefficient.
Yu, The Unified Strength Theory of Rock and Soil Materials and Applications, Journal of Geotechnical Engineering, 2 (1994) 1-10
Zhang, Theoretical analysis on compaction effectiveness of liquefiable foundation by pebble columns, China Safety Science Journal, 6 (2005) 77-79
Chen, Unified Limit Solution of thick wall cylinder subject to external pressure considering strain softening, Journal of Hunan University (Natural Sciences), 2 (2006) 1-5.

Thus, those materials generally fracture in brittle mode under load.
Those critical values are inherent to the workpiece materials.
Various brittle materials are capable of ductile behaviour under high external hydrostatic pressure [17].
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[23] D.Vladislav, G.Yury,Reviews of Advanced Material Sciences (2002)(3)

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Yun, Effects of the UOE/UOC pipe manufacturing processes on pipe collapse pressure, International Journal of Mechanical Sciences 49(5) (2007) 533-553
Vegter, A.H. van den Boogaard, Effect of material scatter on the plastic behavior and stretchability in sheet metal forming, Journal of Materials Processing Technology 214 (2014) 238-252
Nilsson, Optimizing sheet metal forming processes-using a design hierarchy and response surface methodology, Journal of Materials Processing Technology 178 (2006) 218-233

Seible: Construction and Building Materials 17(2003), p.389-403 [3] J.G.
Chang: Journal of Composite Materials 20 (1986), p.216-235 [10] G.A.
Mouritz: Journal of Materials Science Letter 22 (2003), p.1507-1509 [12] S.
Wang: Journal of Composite Materials 43(2009), p.315-330 [13] S.
Duncan: Journal of Material Science 6 (1971), p. 289-293 [20] Y.

Pomposo4,d 1,2,4New Materials Department, CIDETEC, Paseo Miramón 196, Donostia E-20009, Spain 3 Departament of Polymer Science and Technology, Faculty of Chemistry and Polymat, UPV/EHU, P.O.
Dissanayake, Solid State Ionics: Advanced Materials for Emerging Technologies, Proceedings of the Asian Conference World Scientific Publishing: Singapore, 2006
A photo-physical and electrochemical impedance spectroscopy study on the quasi-solid state dye-sensitized solar cells based on poly(vinylidene fluoride-co-hexafluoropropylene), Journal of Power Sources 180 (2008) 896
Krishnan, Science, 311 (2006) 1740
Pomposo, A Theoretical Investigation of PolymerNanoparticles as Miscibility Improvers in All-Polymer Nanocomposites, Journal of Nano Research 2 (2008) 105

Putkonen, et al.: Journal of Materials Chemistry Vol. 16 (2006), p.563 [3] G.
Caltun: Journal of Magnetism and Magnetic Materials Vol. 333 (2013), p. 69 [4] I.
Chuan, et al.: Rare Metal Materials and Engineering Vol. 34 (2005), p. 552 [7] R.
Kaler: Journal of Colloid and Interface Science Vol. 194 (1997), p.225 [22] N.
Qian: Journal of Colloid and Interface Science Vol.346 (2010), p.448

Common raw materials for the production of AC are wood, coal, petroleum waste, peat, lignin and polymers.
All these raw materials are quite expensive, and most of them also belong to non-renewable natural resources.
Photos of raw materials for the synthesis of AC - granules of wheat straw (a) and crushed cherry stones (b) First, the prepared raw materials were weighed and placed in a glass vessel.
Inagaki, F.Kang, Materials Science and Engineering of Carbon.
Yavorska, Research into surface properties of disperse fillers based on plant raw materials, Eastern-European Journal of Enterprise Technologies. 5/12(89) (2017) 20-26