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Wei: Guangdong Trace Elements Science.
Yang: Outhwest China Journal of Agricultural Sciences.
Ren: Harmfulness of nickel in medical metal materials.
Tian: Journal of Huazhong Normal University.
Peng: Journal of Hunan Agricultural University(Social Sciences).

Varavka, Integrated indentation tests of metal-ceramic nanocomposite coatings, Inorganic Materials. 51(15) (2015) 1508-1515
Kim (Eds.), Physics, Mechanics of New Materials and Their Applications, ch. 1, Nova Science Publishers, New York, 2019, pp.1-12
Pharr An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments, Journal of materials research. 7 (1992) 1564-1583
Metallic Materials - Instrumented Indentation Test for Hardness and Materials Parameters - Part 1: Test Method, Standartinform, Moscow, 2013
Varavka: submitted to Journal of Friction and Wear (2020).

The use of composite materials to reinforce the stiffness and lighten the weight of boats or other marine vehicles has become a contemporary design method and for this it is important to study and define the material to be used.
The behavior of auxetic structures has not been completely defined by rigorous study, however, its not so elastic behavior shows that its ability to absorb energy makes the resistance to the generation of a fracture or a dent greater than conventional materials.
Kumar, "Analysis of Metamaterials –for its Different Properties And Areas of Applications," Internation Journal of Engineering Research and Technology, 2015
Prawoto, "Seeing auxetic materials from the mechanics point of view: A structural review on the negative Poisson’s ratio," Computational Material Science, 2012
Kumar, "Analysis of Metamaterials –for its Different Properties And Areas of Applications.," International Journal of Engineering Research & Technology (IJERT), p. 2, 2015.

Vibrations of the moving continuous materials cause poor quality and failure.
Mote Jr, A Study of Band Saw Vibrations, Journal of the Franklin Institute, 279 (1965) 430-444
Nayfeh, Nonlinear Vibrations of a Beam-Spring-Mass System, Journal of Vibration and Acoustics, 116 (1994) 433-439
Yang, Natural Frequencies, Modes and Critical Speeds of Axially Moving Timoshenko Beams with Different Boundary Conditions, International Journal of Mechanical Sciences, 50 (2008) 1448-1458
Köstekci, Effects of Flexural Stiffness, Axial Velocity and Internal Support Locations on Translating Beam’s Natural Frequencies, Applied Mechanics and Materials, 532 (2014) 316-319

Table 1: Results of mechanical properties of materials Content Material Displacement of fracture (mm) Strength (MPa) Elongation (%) Alloy with carbon powder 1.654 288.360 6.615 No carbon alloy 0.650 292.879 2.601 Fig.2: Tensile displacement curve The curve had shown that larger tensile, the longer platform.
The slip lines of material could be seen in the B region of Fig.3(c).
Fig.4 Surface morphology of alloy (SEM) (b) (a) Fig.5 EDS analysis of alloys Conclusions and acknowledge The conclusions are as follows: (1) Adding a certain size carbon powder can effectively enhance elongation of materials and get a alloy with better ductile, but its strength need to be improved
The Chinese Journal of Nonferrous Metals. 2013.03,Vol.23 No.3: 616–622.
The Chinese Journal of Nonferrous Metals. 2013.04, Vol.23 No.4: 912–918.

Slow-release Antibacterial and Physical Properties of PVA Antibacterial Film Ping Jiang1,2, a, Xihai Hao1,2,b and Miao Sun1,c 1Key Laboratory of New Packaging Materials and Technology, Hunan University of Technology Zhuzhou Hunan 412007,China 2Department of Packaging and Materials Engineering, Hunan University of Technology Zhuzhou Hunan 412007,China ajiangping0122@163.com, b562808345@qq.com c598164654@qq.com Keywords: clove oil, inclusion complex, polyvinyl alcohol , Antibacterial and Physical Properties Abstract.
Material and methods Materials.
This phenomenon mainly results form the down of the permeability coefficient of composite materials for the prolonged gas molecules’ diffusion path in the PVA caused by adding with adequate inclusion complex.
Li,C.P.Shi: Plastics Vol.3(2010),p.91-93 [2] M.S,X.H.Hao,J.Deng: Packaging Journal Vol.3(2011),p.6-10 [3] Wq.Guan,S.F.Li: Food Science Vol.26(2005),p. 227-230 [4] D.S.
[7] X.H.Hao,M.Sun: Food science On line(2012)

Round, underground or semi-underground structure forms have better seismic performance than others. 3) Select good building materials.
Try to use reinforced concrete instead of masonry as building materials in greater than or equal to Ⅷ degree areas. 4) Focus on structural integrity.
Li: China Civil Engineering Journal.
Hong: Journal of Natural Disasters.
Hong: Journal of Guangxi University: Nat Sci Ed.

Journal of Chemistry Bulletin, Vol. 4(1997), l
Inorganic Antibacterial Materials and Application (Chemical industry press, Beijing, 2004)
Packaging Journal, Vol. 2(2010), 27-28
Journal of Packaging Engineering, Vol. 3(2007), 7-11
Nano Material Modification Coatings.

According to the structural characteristics and material properties, select all the materials for the solid element.
Table 2 Target materials 7055 Target 7a52 Target 7055-7A52 Target 7A52-7055 Target Residual velocity of projectile 360m/s 460m/s 430m/s 400m/s Table 2 shows that, in the case of normal incidence, ballistic of 7055 aluminum alloy can be far superior from 7a52, however, 7a52 aluminum welding performance was excellent, and in connection with the rest was simple, so the study of aluminum composite target became necessary.
It showed that when the incident angle is small, the projectile to the target plate material is more sensitive, and laying of high-strength material in the lower can play protective properties of Target more effective.
International Journal of Impact Engineering, 2004, 30( 8-9)：1005-38
International Journal of Impact Engineering, 2011, 38(7)：577-589

School of Chemistry and Material Science, Langfang Normal College, Langfang, PR China 2.
Formation mechanism of phosphate conversion film on Mg–8.8Li alloy, Corrosion Science 51 (2009) 62-69
Consolidation of iron powders through the influence of phosphate thin films, Journal of Materials Processing Technology 205 (2008) 151-159
Research of Zinc species phosphating solution modified with Barium salt at ambient temperature, Materials Protection 40 (2007) 34-36
A new low-temperature Zinc-based phosphating technology, Materials Protection 43 (2010) 63-72.