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Phase velocities are obtained for various geometric proportions and materials.
Potentials for evaluating magneto-electro-elastic materials in contact with periodically rigid surface was constructed in [3].
Two-dimensional frictionless contact problem of a functionally graded magneto-electro-elastic materials layered half-space under a rigid flat or a cylindrical punch was studied in [4].
Journal of Materials Science and Applications. 2(2) 61-67
[3] Yue-Ting Zhou, Tae-Won Kim, Constructing potentials to evaluate magneto-electro-elastic materials in contact with periodically rough surface, European Journal of Mechanics And Solids. 53 (2015) 89-98

On early properties of high performance spray material Yuezhong LIN Shandong Provincial Key Laboratory of Civil Engineering Disaster Prevention and Mitigation (Shandong University of Science and Technology) Qingdao China 266590 Jcssust0@163.com Keywords: high performance spray material mechanical properties Abstract: This text used double fast cement, and fly ash, and high performance polymer and fiber for main material and plus agent for has high performance spray material of preparation and research, by distribution out of material has following advantages: condensation time fast, and short-term and late strength high, and dry shrink volume minimal, and stick poly sexual strong, and waterproof, and back bomb rate small, and seal performance very good, and has must of flexible, and using range wide.
Spray materials with high mechanical degree, fast construction period, savings in manpower and so on.
But existing spray material has the following disadvantages: Early strength low and late strength spray material, needs to support the low utilization rate of the template, and material content; Chinese paste material features a single, does not have a waterproof, crack resistant and flexible; Spray materials poor cohesion, with a resilient material, seriously affect spray quality and spray more often [3]; Spray materials short life, susceptible to deformation of coal and rock and fission occurs, causing cracking and secondary rocks into the air; Spray materials using small range.
Original materials Cement: double fast cement.
This research programmer is feasible, preparation of materials to meet the needs of engineering, can be used in coal mine roadway reinforcement and blocking.

The steel slag can be used in the manufacture of different types of materials.
Composites are materials composed of one or more materials [6].
Series: Materials Science and Engineering Vol.374 (2018) 012019 doi:10.1088/1757-899X/374/1/012019 [5] M.D.
Cardoso: Slag Recycling Oven Electric Steelmaking Pan in Ceramic Materials.
Rethwisch: Materials Science and Engineering: An Introduction.

Journal of Polymer Science Part B: Polymer Physics. 2008;46:1301-11
Materials Today: Proceedings. 2018;5:5655-63
Arabian Journal Science & Engineering--special issue. 2002;27:43-67
Smart Materials and Structures. 2018; 27: 075039
Materials Science and Engineering: A. 2007; 464:177-85

Journal of Materials Processing Technology 166, pp. 188–192 [9] Ginta, L.T., Lajis, M.A. and Nurul Amin, AKM. , 2009.
Journal of Materials Processing Technology xxx (2006) xxx–xxx [17] Sharif, S., Abd Rahim, E., and Sasahara, H. , 2012.
Journal of Surface Engineered Materials and Advanced Technology, 2011, 1, 9-14 [20] Yasir, A.M.S, Che Hassan C.H, Jaharah A.G, Nagi H.E, Yanuar B and Gusri A.I., 2009.
“Effectiveness of cryogenic machining with modified tool holder”, Journal of materials processing technology, 185, pp 91-96 [29] Umbrello, D.
Journal of Applied Sciences Research, 8(9): pp. 4880-4890

To meet the demand of different manufacturing processes, the substrate materials can be made by choosing pitch, polyurethane and flexible aluminous plate etc.
Acknowledgements This work is supported by the National Natural Science Foundation of China (Grant No.60508001 and 60644003) and Beijing Nova Program of China (Grant No.2006B24) and Excellent Young Scholars Research Fund of Beijing Institute of Technology (Grant No.2006Y0101).
Zhang: Chinese Journal of Lasers Vol.30 (2003), p.152
Deeg: AMP Journal of Technology Vol.2 (1992), p.237
Wu: Key Engineering Materials Vol.257-258 (2004), p.153.

Danilina, Technological formation features of the lightweight concrete cellular structure, Materials Science Forum. 992 (2020) 26 - 30
Miryuk, Liquid-glass concrete of variable density, IOP Conference Series: Materials Science and Engineering. 869 (2020) 032025
Johari, Utilization of fly ash in lightweight aggregate foamed concrete, ARPN Journal of Engineering and Applied Sciences. 8 (2016) 5413 – 5417
Narikov, Collagen agent technology for foam concrete production, ARPN Journal of Engineering and Applied Sciences. 5 (2017) 1674 –1678
Forosevich, The problem of structurization of liquid glass, Materials Science Forum. 871 (2016) 90 – 95

The Influence of GGG70L laser Surface Hardening Power on Quenched Layer Performance Yuntao Li1,2,a,Feixiang Jin1,3,b,Ningxu Wang 1,3,c, Qing Chang4,d,Deyu Liu4,e 1School of Materials Science Engineering, Tianjin University of Technology, Tianjin 300384, China; 2Tianjin Key Laboratory for Photoelectric Materials Devices, Tianjin University of Technology, Tianjin 300384, China; 3Key Laboratory of Display Materials Photoelectric Devices Ministry of Education, Tianjin University of Technology, Tianjin 300384, China; 4Tianjin Motor Dies company limited, Tianjin 30011,china atransramble@163.com,bjfx5776356@163.com,cwnxwjiji@163.com,dtsingtsang@tqm.com.cn, eldy.
Journal of Wuhan University of Technology-Mater, 2012, 27(6):1115-1119.
A Mechanical Model for the Quantification of the Effect of Laser Quenching on CTOD in Steels [J].Journal of Materials Processing Technology, 2009, 209(4):2180-2185.
Journal of Armored Force Engineering Institute, 2010, 24(5):73-76.
Journal of Wuhan University of Technology-Mater.Sci.Ed, 2010, 25(1): 84-88.

Materials and methods Raw materials.
Journal of Materials in Civil Engineering. 19 (2007) 198-204
Materials and structures. 46 (2013) 361-373
Journal of Fuzhou University (Natural Science Edition) . 38 (2010), in Chinese
Corrosion studies of fly ash and fly ash-slag based geopolymer, C//IOP conference series: materials science and engineering.

Materials and Methods A.
J, Willey, B.Notari, “An investigation on the catalytic properties of titonic-silica materials,” J.
Journal of Catalysis, vol. 220, 2003, pp. 240-248
Journal of Huaqiao University(Natural Science), vol. 23, 2002, pp. 129-132
Functional Materials, vol. 36, 2005, pp. 859-861