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High Cycle Fatigue Life of Ti6Al4V Alloy Produced by Direct Metal Laser Sintering Radomila Konečná1,a, Gianni Nicoletto2,b, Adrian Bača1,c and Ludvík Kunz3,d 1 Department of Materials Engineering, University of Žilina, Žilina, Slovak Republic 2 Department of Industrial Engineering, University of Parma, Parma, Italy 3 Institute of Physics of Materials, Brno, Czech Republic aradomila.konecna@fstroj.uniza.sk, bgianni.nicoletto@unipr.it, cadrian.baca@fstroj.uniza.sk dkunz@ipm.cz Keywords: Additive manufacturing, laser powder melting, titanium alloy, fatigue life.
Vol 12, p. 264, Elsevier Science (2011)
Kruth: Rapid Prototyping Journal Vol. 17 (2011) p. 312
Levy: Rapid Prototyping Journal Vol. 17 (2011) p. 195
Tuck: Journal of Physics Conference Series Vol. 07 (2012) p. 371

Study on the structure and property of ultra-fine denier PET full drawing yarn: effect of draw ratio and take-up velocity Fenglei Shen1, a, Guoqiang Chen2,b, Jiangzhong Ding3,c, Juyan Dai4,d and Xiufeng Yu5,e 1.College of textile and clothing engineering, Soochow University, Suzhou, China, 215006 1.College of chemistry, chemical engineering and materials science, Soochow University, Suzhou, China, 215123 1.Jiangsu Hengli chemical fiber Co.
Journal of applied polymer science, 2007, 106:1757-1767 [6] Hantao Zou, Guang Li, Jianming Jiang, Shenglei Yang.
Journal of applied polymer science, 2009, 111: 805-812 [8] Jong Kahk Keum, Hye-Jin Jeon, Hyun Hoon Song, et al.
Journal of applied polymer science, 2006, 102(3):3078~3082 [12] J.
Journal of polymer science: part B: polymer physics. 1996, 34: 1243-1255 [13] Jong Kahk Keum, Jinmo Kim, Sang Man Lee, et al.

Reducing the decay is possible by using modified materials (such as mixtures containing rubber) or by the layer reinforcement with geosynthetics.
Analysing the interaction between these materials is essential to understand the geogrid behaviour and its reinforcement function inside the pavement structure.
Fig. 3 - Micro-scale reinforced pavement system The materials data required for the simulation were assumed to represent realistic material properties published in previous studies (Tab. 1).
Leonardi: A Finite element model to evaluate airport flexible pavements response under impact (Applied Mechanics and Materials, 138-139, pp. 257-262) (2012)
Leonardi: Finite element analysis for airfield asphalt pavements rutting prediction (Bulletin of the Polish academy of Sciences: Technical Sciences, Vol. 63, Issue 2, pp. 397-403) (2015)

We thank The Center of the National Technological Initiative (NTI) «Digital material science: new materials and substances» for the infrastructure for mechanical experiments.
Wool, Self-healing materials: a review, Soft Matter., 2008, 4(3) 400-418
Chen et al, A thermally re-mendable cross-linked polymeric material Science, 2002, 295(5560)1698-1702
Wang et al, Eco-friendly, self-repairing polymer materials based on reversible Diels-Alder chemistry, Journal of Macromolecular Science, Part A., 2020, 57(12)888-95
Polezhaev, Synthesis of self-healing polymers precursors from available bio-renewable raw materials, /IOP Conference Series: Materials Science and Engineering. – IOP Publishing, 2019, 683(1) 012002

Bera2,b 1Department of Physics , National Institute of Technology, Silchar Assam, India 2Department of Material Sciences, S.N.B.
Introduction Multiferroic materials that combine spontaneous magnetization with spontaneous polarization have recently attracted a surge of attention.
However, the toxicity of lead has raised concerns and more environmentally friendly lead-free piezoelectric materials are in urgent demand.
Macdonald, “Impedance Spectroscopy: Emphasizing Solid Materials and Systems,” John Wiley & Sons, New York, 1987, pp. 191-316
Hirose, “Characterization of Electrical Materials, Especially Ferroelectrics, by Impedance Spectroscopy,” Journal of Electroceramics, vol. 1, 1997, pp. 65-71

Electrooxidation for methanol on Pd nanoparticles modified electrodes in alkaline medium Mingli Xu 1, a, Guotao Yang 2,b 1 Faculty of science, Kunming University of Science and Technology, Kunming 650093, PR China 2 Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650093, PR China axumlif@yahoo.com.cn, b187118640@qq.com Keywords: Palladium nanoparticles modified electrodes; Electrocatalytic oxidation; Methanol.
How to use a simple method to prepare the electrode materials with excellent properties for catalytic oxidation methanol and carrying out the corresponding electrochemical study, are the long pursuit for many scientific research workers.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (Projects 51164017) and the National Natural Science Foundation of China (Projects 20863003).
[12] R.N.Singh and A.Singh: Journal of Hydrogen Energy Vol.34 (2009), p.2052
[17] Q.X.Zha: Kinetics of Electrode Process, Beijing Science Press (2002)

The tubular textile composite material as the liner is inversed in the pipeline by gas or water pressure, and then the damaged pipeline can be rehabilitated.
During inversion, because of the inversion pressure, the tubular textile composite material must endure the complicated stress and strain.
The results show that the stress and strain in head of the tubular textile composite material during inversion is instability, where the stress is concentrative, so the head of the tubular textile composite material is easy to break.
References [1] W.Hufenbach,L.Kroll, R.B¨ohm, A.Langkamp,A.Czulak:Journal of Materials Processing Technology Vol.175 (2006), p. 231
[5] X.Zhao, X.Yangg:Journal of Yueyang Normal University(Natural science) Vol.14 (2001), p. 29 [6] ASTM:F2207-02.Standard Specification for Cured-in-Place Pipe Lining System for Rehabilitation of Metallic Gas Pipe,2002

Xin Hu et al.[2] prepared starch microspheres with the soluble starch as raw materials and the epichlorohydrin as crosslinking agent, then discussed the main influencing factors.
Zhongjin Li et al.[3] prepared the starch microspheres by the inverse emulsion polymerization principle with soluble starch as raw materials and the MBAA as crosslinking agent, then discussed the adsorption properties of CSM on metal ions.
Materials and Methods Experimental Water Samples.
Chinese Journal of Pharmaceuticals, Vol.28 (1997), p.406 (in Chinese)
Journal of Applied Polymer Science, Vol.115 (2010), p.487

Preparation and Thermoelectric Properties of Ca3Co4O9 Ceramics with Parallel Sheet Shaped Pores Huadong Wang1,a, Xudong Sun1,b, Xueyong Ding1,c, Mu Zhang1,d, Xiaodong Li1,e, Ji-Guang Li1,2,f, Di Huo1,g, Shaohong Liu1,h 1 Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education) adn School of Materials and Metallurgy, Northeastern University, Shenyang, Liaoning 110004, China 2Advanced Materials Processing Unit, National Institute for Materials Science, Sengen 1-2-1, Tsukuba, Ibaraki 305-0047, Japan awanghuadonglq@126.com, bxdsun@mail.neu.edu.cn, cDingxy@smm.neu.edu.cn, dacmzhang@gmail.com, elixd@atm.neu.edu.cn, flijg@smm.neu.edu.cn, ghuod@smm.neu.edu.cn, hliush@smm.neu.edu.cn Keywords: Ca3Co4O9, porous, sheet shaped pores, thermoelectric property Abstract.
Thermoelectric (TE) materials were considered as the best at converting waste heat to electricity.
With these regards, Co-based oxide materials with layered structures are possible candidates for TE materials[4-6].
Hence, researchers endeavored to find polycrystalline materials with high ZT value.
[4] Siwen Li, Ryoji Funahashi, Ichiro Matsubara, Kazuo Ueno, Hiroyuki Yamada, High temperature thermoelectric properties of oxide Ca9Co12O28, Journal of Materials Chemistry Communication, 9 (1999), 1659-1660 [5] J.G.

Meanwhile, door trim with kenaf-polypropylene base materials has a weight reduction from resin-polypropylene base materials.
Liu: Science of the Total Environment Vol. 622 (2018), p.1294-1303
Zainudin: Materials & Design Vol. 40 (2012), p.299-303
Ameyama: Advanced Materials Research Vol. 896 (2014), p.570-573
Ameyama: Journal of Ceramic Science and Technology Vol. 2(3) (2011), p.139-146