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Machining of high strength materials can cause breaking of brittle fracture of the cutting edge parts.
Kauppinen: Tool wear and machinability of X5CrMn18 stainless steel, Journal of Materials Processing Technology Vol. 119 (2001), p. 14-20 [8] F.
Nouari: Modeling of velocity-dependent chip flow angle and experimental analysis when machining 304L austenitic stainless steel with groove coated-carbide tools, Journal of Materials Processing Technology Vol. 213 (2013), p. 1166-1178 [9] S.
Kvasnica: Using Pipeline Instructions by Parallel Simulation of Mathematical Models, Journal of Mathematics and System Science Vol. 2, No. 9 (2012) p. 552-557 [15] Z.
Takano: Effects of free-cutting additives on the machinability of austenitic stainless steels, Journal of Materials Processing Technology Vol. 143-144 (2003), p. 66-71 [17] M.

Through a comparative analysis of various materials’ critical failure velocities, the optional materials for impact resistant can be got.
In such a situation, it can be inferred out that some kinds of plastic materials such as special engineering plastics have better impact resistant performance than metal materials.
[4] Johnson HE，Louca LA，Mouring SE: Current research into modelling of shock damage to large scale composite panels[J]．Journal of Materials Science, Vol.41(2006), p.1573-1590
Chinese Journal of Ship Research, Vol.3 (2008)
Chinese Journal of Applied Mechanics, Vol.26 (2009)

Introduction In recent years, there have been an increasing number of studies on natural fiber as fillers motivated by the huge potential advantages that can be offered over the conventional materials like glass or carbon fiber.
Methodology Materials.
Composites Part A: Applied Science and Manufacturing, (2010) 41(7)
Composites Science and Technology, 65(3-4), (2005) 525–535
Zainal Ariffin, , Chemical Modification of Kenaf Fibers, Journal of Materials Letters, 61: (2007) 2023- 2025

Moreira, Advanced oxidation processes applied to tannery wastewater containing Direct Black 38—Elimination and degradation kinetics, Journal of Hazardous Materials, 135 (2006) 274-279
Olivi, Electrochemical treatment of tannery wastewater using DSA® electrodes, Journal of Hazardous Materials, 153 (2008) 616-627
Aziz, Coagulation–flocculation studies of tannery wastewater using combination of alum with cationic and anionic polymers, Journal of Hazardous Materials, 168 (2009) 1035-1040
Rajasimman, Biological Treatment of Tannery Wastewater- A review, Journal of Environmental Science and Terchnology, 4 (2011) 1-17
Zheng, High-performance microbial fuel cell anodes obtained from sewage sludge mixed with fly ash, Journal of Hazardous Materials, 354 (2018) 27-32

Science.
Materials Letters.
Journal of Power Sources.
Materials Letters.
Journal of Power Sources.

Journal Citation (to be inserted by the publisher ) Copyright by Trans Tech Publications Bonelike Apatite Formation on Synthetic Organic Polymers Coated with TiO2 F.
Nakamura 5 1 Graduate School of Material Science, Nara Institute of Science and Technology (NAIST), Nara, Japan, balas@ms.aist-nara.ac.jp 2 Graduate School of Engineering, Kyoto University, Kyoto, Japan 3 Department of Ceramic Engineering, Yonsei University, Seoul, South Korea 4 Research Institute for Science and Technology, Chubu University, Kasugai, Japan 5 Graduate School of Medicine, Kyoto University, Kyoto, Japan Keywords: bioactive materials, coatings, composites, in vitro, polymers, surface modification Abstract.
Synthetic organic polymers were modified with silane-coupling agents, subsequently coated with hydrated titania abundant in Ti-OH group, to produce novel materials with bone-bonding property, i.e. bioactivity.
Composite materials consisting of apatite nanocrystals and polymer fibers that mimicks bone structure attracted much attention, because they may open new avenues for novel bone-reparing materials.

Materials and Methods 2.1.
Materials and chemicals Lotus seeds pods were collected from Quang Nam province, Vietnam.
[5] Duc N, Quyen V U, Tuyen T N, Khieu D Q, Hai H V M, Tin D X, Lan P T N and Kiyoshi I, Lead ions removal from aqueous solution using modified carbon nanotubes, Bulletin of Materials Science, 41 (2018) 1-11. doi:10.1007/s12034-017-1541-7
[6] Hasar H, Adsorption of nickel(II) from aqueous solution onto activated carbon prepared from almond husk, Journal of Hazardous Materials, 97 (2003) 49–57. doi:10.1016/S0304-3894(02)00237-6
[21] Yang X, Zhang X, Ma Y, Huang Y, Wang Y, Chen Y, Superparamagnetic graphene oxide–Fe3O4 nanoparticles hybrid for controlled targeted drug carriers, Journal of Materials Chemistry, 19 (2009) 2710. doi:10.1039/b821416f

The pressure and the inside defects of the material during rheo-diecasting is realized.
[2] Y.L.Kang, W.M.Mao, Z.L.Hu, Semi-solid metal processing theory and technology, Science Press, Peking, 2004
[3] S.S.Xie, J.Shen, X.J.Zhang, Journal of Plasticity Engineering, 7 (2000) 6-10
[5] H.Yan , W.W.Zhuang, Journal of Materials Processing Technology, 187 (2007) 349-353
[7] Escodar de Obaldia E, Felicelli S D, Journal of Materials Processing Technology, 191 (2007) 265-269

Among the various available procedures for the production of ultra-fine grain materials, ECAP is the most established method for the production of bulk billets [3].
References [1] Jogi, B.F et al., "Some Studies on Fatigue Crack Growth Rate of Aluminum Alloy 6061", Journal of Materials Processing Technology,201, pp.380-384, 2008
[4] Stolyarov, V.V et al., "Influence of ECAP Routes on The Microstructures and Properties of Pure Ti", Materials Science and Engineering, A(299), pp.59-67, 2001
[5] Valiev, R.Z et al., “Producing Bulk Ultrafine-Grained Materials by Severe Plastic Deformation”, Journal of the Minerals, Metals and Materials Society, 58(4), pp.33-39, 2006
[6] Furukawa, M., Horita, Z., & Langdon, T.G, “Processing by Equal-Channel Angular Pressing: Applications to Grain Boundary Engineering”, Journal of Materials Science, pp.909-917, 2005.

The materials may be from organic materials or made materials.
During the process of polymeric materials degradation, oxygen diffusion occurs prevalently in the unstructured regions.
Furthermore, some research is needed on the economy, performance, and efficiency of materials built from face masks’ waste.
Indian Journal of Biotechnology, 7(1), 9–22
Journal of Cleaner Production, 277, 123227