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Bleys, “Investigation of material removal mechanisms in EDM of composite ceramic materials”, Journal of Material Processing Technology, 149, 347-352 (2004) [3] K.
Liu, “Microstructure and tool electrode erosion in EDMed of TiN/Si3N4 composites”, Materials Science and Engineering, A363, 221-227, (2003) [8] F.F.
Lange, “Transformation toughening – Part 4 Fabrication, fracture toughness and strength of Al2O3-ZrO2 composites”, Journal of Materials Science, 17,247-254, (1982) [9] W.
Van der Biest, “Toughness tailoring of yttria-doped zirconia ceramics”, Materials Science and Endineering, A380, 215-221, (2004) [11] K.
Niihara, “A fracture mechanics analysis of indentation-induced Palmqvist crack in ceramics”, Journal of Materials Science Letters, Vol. 2, 221-223, (1983) [12] G.R.

It has served as an excellent substitute for many conventional materials like wood, copper, iron and steel.
The 1xxx series designation concerns unalloyed aluminium materials which are distinguished according to their degree of purity.
The wear rate increases with increase in sliding distance and applied pressure for all the materials. 6.
[15] IIT Nptel lecture on composite materials
[17] Dewan Muhammad Nuruzzaman, Mohammad Asaduzzaman Chowdhury, Effect of Normal Load and Sliding Velocity on Friction Coefficient of Aluminum Sliding Against Different Pin Materials, American Journal of Materials Science, 2(1), 2012,26-31.

The raw materials for AC preparation are mainly divided into wood and coal materials.
Wood raw materials are mainly composed of husk, crop straw and other biomass, while the coal raw materials are mainly composed of lignite, anthracite and pitch coke [4-7].
Experiments Raw Materials.
Xie, Preparation and modification of activated carbon for benzene adsorption by steam activation in the presence of KOH, International Journal of Mining Science and Technology. 3(2013) 395-402
Zhou, Surface properties of activated carbon from different raw materials, International Journal of Mining Science and Technology. 4(2012) 483-486

Mechanical Behaviors of Shape Memory Polymer with Linear Monomer Bo ZHOU1, 2, a, Xuelian WU1, Yanju LIU3 and Jinsong LENG1, b 1Center for Composite Materials and Structures, Science Park of Harbin Institute of Technology, No.2 Yikuang Street, Harbin 150080, China 2College of Aerospace and Civil Engineering, Harbin Engineering University, No.145 Nantong Street, Harbin 150001, China 3Department of Aerospace Science and Mechanics, Harbin Institute of Technology, No.92 Western Dazhi Street, Harbin 150001, China azhoubo@hrbeu.edu.cn, blengjs@hit.edu.cn Keywords: Shape memory polymer, mechanical behaviors, material parameter equation.
Material parameter equations are supposed to describe the relationships between the material parameters of SMP with linear monomer and temperature.
Du: Smart Materials and Structures Vol.18 (2006), p.085003 [2] B.
Yoon: International Journal of Modern Physics B Vol.23 (2010), p.1248 [7] B.
Li: Key Engineering Materials Vol.419-420 (2010), p.497

Journal of Materials Processing Technology 1997, 63, 813-818
Journal of Materials Processing Technology 2004, 155, 1653-1657
Journal of Materials Processing Technology 2004, 153, 978-985
Journal of Materials Processing Technology 2007, 183, 122-126
Journal of Materials Science 2003, 38, 1679-1687

The selection of tool materials The selection of tool materials, these are commonly used in the cutting superalloy materials at present, such as high speed steel, coated high speed steel, carbide, ceramic and CBN , of all the cutting materials ceramic and CBN mainly used in the manufacture of turning and milling ,due to drilling tools complicated structure.
It is a new tool material that between HSS and carbide materials.
Zhao, Study on cutting performance of coated carbide tool on milling powder metallurgy superalloys, Journal of Sichun University(Engineering Science Edition) 42(2010) 206-210
Journal of Materials Processing Technology [J] 200(2008)424-432
Journal of Materials Processing Technology[J] 140(2003)269-273

The paper is primarily focused on the determination of the ultimate strength of pressed materials in the form of steel sheets.
The breaking strength of homogeneous materials such as e.g. steel sheet is not a relevant indication for pressed steel sheet waste material.
The scarcity of natural raw materials and its impact on the economy and economic policy is very high.
[4] Nader Asnafi, On strength, stiffness and dent resistance of car body panels, Journal of Materials Processing Technology, Volume 49, Issues 1–2, 1995, Pages 13-31, ISSN 0924-0136, https://doi.org/10.1016/0924-0136 (94)01333-V
[6] John Magliaro, William Altenhof, Anthony Gudisey, Analytical and experimental investigations of the enhanced mechanical response of cutting deformation compared to progressive folding in AA6061 energy dissipation devices, International Journal of Mechanical Sciences, Volume 151, 2019, Pages 808-827, ISSN 0020-7403, https://doi.org/10.1016/j.ijmecsci.2018.12.035

Introduction The interior cracks defect of brittle material cause high concentration of stresses which may affect the mechanical properties of materials.
For actual materials, there are several of complex cracks in heterogeneous materials (e.g., rocks) in some cases which can not be simply reduced to two dimensions.
They use different methods to make artificial crack in brittle materials such as different transparent casting resin, cement and mortar samples by changing the location of the original cracks to simulate the destruction of brittle materials.
We choose PMMA as the test materials.
[4] R.Ayatollahi, M.R.M.Aliha, M.M.Hassani: Materials Science and Engineering, A 417, 348–356, 2006

The development of materials used to protect them is needed.
Liao, Experimental investigation of polyurea-coated steel plated at underwater explosive loading, Advances in Materials Science and Engineering.
Alldredge, Applying a polyurea coating to high-performance organic cementitious materials, Construction and Building Materials. 38 (2013) 1170-1179
Series: Materials Science and Engineering. 423 (2018) 6 pp
Oprea, Effect of polyols on the physico-mechanical properties of some polyurethanes, Journal of Optoelectronics and Advanced Materials. 9(4) (2007) 994-999

Experimental Raw materials and instruments.
Richard Hull.Assessment of the fire toxicity of building insulation materials[J].
Auad,Lihua Zhao,Hongbin Shen,Steven R.Nutt,Usman Sorathia.Flammability Properties and Mechanical Performance of Epoxy Modified Phenolic Foams[J].Journal of Applied Polymer Science,2007,104:1399–1407
Phenolic foams from wood tar resols[J].Journal of Applied Polymer Science,2010,115:923–927
Development of microwave foaming method for phenolic insulation foams[J].Journal of materials processing technology,2008,201:716-719