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Experimental Research of Energy Harvesting and Storage Based on Ferroelectric Materials Kaifeng Li 1, a, Rong Liu1, b, Linxiang Wang 2, c 1 Institute of Mechatronic Engineering, Hangzhou Dianzi University, Hangzhou, 310018, China 2 Department of Ocean Science and Engineering, Zhejiang University, 310058, China a paulkf@163.com, b liurzju@gmail.com, c lxwang236@163.com Keywords: Ferroelectric materials, Harvesting, Storage, PMN-PT, Supercapacitor, Ferroceramic.
Ferroelectric materials, is kind of material which has “ferroelectric phenoemeon”or “ferroelectric effect”; it is a kind of piezoelectric materials[2].
A review of power harvesting using pizeoelectric materials, Smart Materials and Structures, 10.1088/0964-1726/16/3/R01
Journal of Intelligent Material System and Structure, V19, N6, P 671-680, June 2008
Generation and Storge of Electricity from Power Harvesting Devices, Journal of Intelligent Material Systems and Structures, V16, N1, P67-75, January 2005

Effects of Carbon Fiber Dispersion on Bending Property of Cf/SiC Brake Materials Bolin He1,a, Yingxia Yu1,b, Jia Sun1,c, Jing Liu1,d and Jianping Shi2,e 1School of Mechanical & Electrical Engineering, East China Jiaotong University, Nanchang 330013, China 2China academy of railway sciences, Beijing 100081, China ahebolin@163.com, byyxhbl@163.com, cjiasun1985@163.com, dliujing072321@163.com, etkysjp@163.commail Keywords: Cf/SiC brake materials; sintering; carbon fiber dispersion; bending property.
It is urgent to find new braking materials to satisfy the rigorous using environment.
This method dose not introduce new materials, and easy to operate.
Fig.5(b) shows the disperse fiber strength composite materials.
Huang, Progress in the resaerch of train brake friction materials, Materials Science and Engineering, 17 (1999) 91-93(In Chinese)

The effects of two types of emissive materials on operation properties of M type cathode were also investigated.
To remove residual organic materials, the sample was heat treated at 500 °C for 2 h and nano emissive materials were produced.
During the impregnating process, it was observed that the melting point of emissive materials produced by the sol-gel combustion was lower than that of emissive materials synthesized by the ball-milling method, which is about 100 ͦC.
Ohlinger, The metallurgical properties of tungsten–iridium cathodes, Applied Surface Science. 146 (1999) 39-46
Shiezadeh, Synthesis of nanocrystalline electron emissive materials with homogenous composition in nanoscale, International Journal of Chemical Engineering and Applications. 4 (2013) 88-91

China Ranxianwen@163.com Keywords: energetic materials; smoothed particle hydrodynamics; ignition; laser Abstract.
This way, the temperature of materials rises.
Journal of Applied Physics, 2008, 103:083536
Femtosecond laser interaction with energetic materials. 2002, Livermore reports, UCRL-JC-145670
[8] Lucy L B, Astronomical Journal, 1977, 82:1013-1024

Bandyopadhyay: Materials Science and Engineering C, Vol. 23 (2003), p. 611 [20] H.
Wu: Journal of Biomedical Materials Research B, Vol. 63 (2002), 271 [21] Y.
Lee: Journal of Biomedical Materials Research B, Vol. 63 (2002), 161 [24] S.
Shi: Journal of Biomedical Materials Research B.
Weinkamer: Progress in Materials Science, Vol. 52 (2007), p. 1263 [75] O.

Preparation of Tourmaline Composite Materials and Its Property of Far Infrared Radiance Gang Xue a , Yanqing Wang b, Lei Zhang c and Xuefang Zhangd Institute of Power Source and Ecomaterials Science, Hebei University of Technology, Tianjin 300130, China a xuegang@hebut.edu.cn, beasybreeze@126.com , c329839106@qq.com, d sunny050700@yahoo.comc.n Keywords: tourmaline, rare earth, composite materials, preparation, far infrared radiance Abstract.
Table 1 List of the raw material ratio of the mineral composite materials.
Liang, et al.: Advanced Materials Research, Vol. 58 (2009), p.47 [7] W.W.
Liang: Journal of Functional Materials, Vol. 35(2004), p. 2579 [9] D.B.
Ding, et al.: Journal of American Ceramic Society, Vol. 91[8] (2008), p.2588

New materials in nuclear fusion reactor Fusion candidate structural materials mainly include the austenitic stainless steel (represented as the first candidate materials, e.g., PCA material), ferritic/martensitic steel (e.g., HT-9), vanadium alloy (e.g., VCrTi), and SiC/SiC composite materials.
Summary With the further development of materials science and nuclear technology, new material plays a more and more important role in the new nuclear reactor, the ultrahigh temperature, strong radiation, and strong corrosion service environments in new nuclear reactor require higher performance of the new material, now there is no material completely meet the requirements, the researchers need to do further work to solve some common problems in materials, such as the high temperature strength, creep resistance, irradiation damage resistance and corrosion resistance, etc., so as to develop new materials with excellent comprehensive properties.
Xu: Structural materials in fast reactor, J.
Chinese Journal of Nuclear Science and Engineering. 28 (2008), p. 129-133
Journal of Nuclear Materials. 371 (2007), p. 37-52

The simulation results based on the different rubber materials reveal that the selection of the shape of the cavity depends on the material characteristic.
The materials include the Chlorosulfonated polyethylene rubber and steel, and the perforation coefficient is 0.2 , 0.3 , 0.4 respectively.
As shown in Fig.7, the difference between materials leads directly the difference between the cavity structures.
Tab.1 Optimized result of different materials in the same request materials Maximum of reflection coefficient Mean of reflection coefficient Average deviation of reflection coefficient nitrile-butadiene rubber 0.0600 0.0514 0.0045 Butyl rubber 0.0625 0.0512 0.0048 Chlorosulfonated polyethylene rubber 0.0600 0.0516 0.0048 Fig.6 Reflection coefficient curves of different materials in the same request Fig.7 Perforation coefficient curves of different materials in the same request Conclusion Through the above simulation analysis, we will draw the following conclusion: 1.
Journal of Marine Science and Technology, 2007, 15(4)：351-359

At this stage, a multistructural theory arose in materials science (the study of the material is carried out according to the scheme “recipe-technological factors - composition, structure - properties”).
Skachkov, Modeling of Building Materials as Complex Systems, Key Engineering Materials. 730(2017) 412-417 [2] Garkina I.A., Danilov A.M., Selyaev V.P., Materials as complex systems, Journal of Engineering and Applied Sciences. 11(2016) 2461-2464 [3] Irina Garkina and Alexander Danilov, Mathematical Methods of System Analysis in Construction Materials, IOP Conf.
Series: Materials Science and Engineering (2017) 245
[4] Garkina I., Danilov A., Composite Materials: Identification, Control, Synthesis, IOP Conference Series: Materials Science and Engineering. 471(2019) 032005
Series: Materials Science and Engineering. 191 (2017)012006 [7] Garkina Irina, Danilov Alexander, Experience of Development of Epoxy Composites: Appendix of Methods of Rank Correlation, Key Engineering Materials. 777(2018) 8-12

P Wave Propagation in the Functionally Graded Materials Ligang Zhang1, a, Hong Zhu2, b, Hongbiao Xie1, c and Lin Yuan2, d 1National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao 066004, China 2School of Mechanical Engineering, Yanshan University, Qinhuangdao 066004, China azlg@ysu.edu.cn, bzhuhong9@126.com, chbx@ysu.edu.cn, dinfo@ysu.edu.cn Keywords: P Wave; Functionally graded materials; Wave velocity; Wave amplitude; Differential equation with varied coefficient Abstract.
The P wave propagation in the functionally graded materials (FGM) is studied.
(Science Press, China 2002)
Wu: Chinese Journal of Computational Mechanics.
Lam: Journal of Sound and Vibration Vol. 236(2000), p. 307 [6] Z.