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Research of Materials for High Temperature Electromechanical Energy Converter F.R.
According to the LLC Holding Company" Elinar " there are insulating materials capable of providing starter-generators working temperature up to 400ºС (micanite flexible RCHN) [7].
Problem Formulation The aim of this work is to calculate the electrical features of materials on exposure to high temperatures of environment.
Conclusion So this article proved the possibility of creating a high temperature integrated aircraft engine, starter-generator, for which there are all construction materials.
Khayrullin, An Algorithm for Controlling Hybrid Magnetic Bearings Using the Magnetic Field Pattern, Journal of Computer and Systems Sciences International, 52(5) (2013) 794-799

The relative change of resistance is Δρ/ρ= πEσ (ρ -- resistivity; πE -- piezoresistive coefficients of the materials; σ -- acting force).
Fig. 5 Diagram of direct piezoelectric effect Piezoelectric material Polyvinylidene-fluoride (referred to as PVDF) is a new type of polymer-type material.
Chinese Journal of Scientific Instrument, 29(4) (2008) 155-158
Chinese Journal of Scientific Instrument, 29(4) (2008) 149-154
Chinese Journal of Scientific Instrument, 29(4) (2008) 221-225

Development and application of aluminum extrusion for automotive parts, mainly bumper reinforcemen, Journal of Materials Processing Technology. 38 (1993) 635-654
Bottema, Recent development in aluminum alloys for the automotive industry, Materials Science and Engineering A. 280 (2000) 37-49
Zuliani, Applications for the strontium treatment of wrought and die-cast Al, Journal of Materials Science. 48 (2010) 60-63
Distribution of α-AlFeSi and β-AlFeSi particles in surface layer of AA6063 alloy billets after heat treatment, Journal of Materials Science. 39 (2004) 1227-1231
Langlais, Material Science Forum. 331-337(2000) 215-222

Finite Element Simulation and Experiment of Mechanical Expanding for Longitudinal Welded Pipe Yunfeng Yao1, a, Ying Gao 1, b, Junxia Li 1, c, Shuangjie Zhang 1, d and Tao Han 2,e 1 School of Materials Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China 2 Ordnance Technological Research Institute, Shijiazhuang 050003, China ayaoyf@hebust.edu.cn, bgaoyingch@sina.com, clijx@hebust.edu.cn,dzsjzll@163.com, eht1986ysu@sina.com Keywords: Longitudinal welded pipe; FEM; Mechanical expanding; Ovality; Expanding force Abstract.
References [1] Fan Lifeng, GaoYing, Li Qiang and Xu Hongshen: Chinese Journal of Mechanicl Engineering Vol. 25,(2012), p.1-10 [2] Liu Qing-cai, Chen Shu-rong, Han Xiao-fei: Machinery design & manufacture.
Vol. 7(2009), p. 146-147 [3] Ye Ling , H P Lee, B T Cheok: Journal o f Materials Processing Technology.
Vol. 168(2005), p. 296- 302 [4] M Math, B Grizelj: Journal of Materials Processing Technology.
Vol. 29 (2006), p. 60-63 [7] Wang Ping, Zhen Songlin, Wu Guangqiang: Journal of Mechanical Engineering, Vol. 47(2011), p. 102-108.

XPS is widely used in physics, chemistry, biomedical materials, surface science and other fields[3].
Thin films composed of graphene and related 2D materials are ideal samples for testing with XPS.
XPS can be used to further study performance such as electrical and thermal properties of graphene materials by combining with other characterization methods commonly applied in materials science such as UV, XRD and Raman spectroscopy [9-11].
For homogeneous bulk materials, the usual method is to clean the surface during sample preparation.
Woicik, Recent applications of hard x-ray photoelectron spectroscopy, Journal of Vacuum Science & Technology A, 34 (2016) 21

Materials ENR25 and ENR40 (the extent of the epoxidation is 25% and 40% respectively) are prepared in our factory.
Chinese Journal of Polymer Science, 2002, 20, 119-127
Journal of Applied Polymer Science, 1971, 15, 351-367
Journal of applied polymer science, 1999, 71, 855-863
New Chemical Materials, 2002, 5, 011

The research in composites attempt to predict the physico-chemical and mechanical a given mixture of materials.
Introduction The composites are among the oldest materials used by man.
The characteristics of these materials depend on the final properties of loading, geometry and also used as the resin matrix as well as the proportion of these materials [2].
Abbas: Journal of Ovonic Research Vol. 5 (5) (2009), p. 157
Sawnt: Journal of Materials Science Materials Eletronics Vol. 10 (1999), p. 133

Engineers can optimize designs by understanding how materials and shapes in the design respond when given specific pressures.
The second step is choosing the materials of 3D parts to define the material properties [10].
Utilization of Paraffin and TiO2 as Phase Change Materials (PCM) for Processor Coolers.
International Journal of Functional Research in Science and Engineering (IJFRSE). 3,1 (2024) [8] I.
Journal of Energy Storage, 39, 102518

To solve the defects of rigid material, it used material of flexible ecological slope protection - pyramid heap overlay muscle strengthening ecological retaining wall (see figure 3) instead of hard materials such as steel, cement, stone, building permanent and natural ecological slope stability and green vegetation, and all in harmony[4].
Journal of urban water conservancy, 2004 (14): 53 ~ 55.
Science and technology, 2007, 23 (1).
Journal of Environmental Management, 2004, 30 (4): 468 ~ 480
Journal of water resources in Beijing, 2002 (1): 11 ~ 12 .

The double shear unified strength theory for the plane-strain problem Because Mohr-Coulomb’s strength criterion and other common strength theory couldn’t reflect the effect of intermediate principal stress, YU Maohong constructed the double shear unified strength theory which can consider the intermediate principal stress in 1983, and the formula of the double shear unified strength theory for the soil materials under the plane strain condition can be expressed as [1].
or (1) where In which,, are respectively the cohesion and internal friction angle of materials: ,,are respectively the first ,the second and the third principal stress: is the parameter of intermediate principal stress.
Acknowledgements This work was financially supported by the National Natural Science Fund Project (51278121).
References [1] Yu maohong:The double shear unified strength theory(Science Press, Beijing, China 1998) (in Chinese) [2] Vesic,A.S.
) (in Chinese) [15] Kamke.K.in:Handbook ordinary differential equation,edit by Science Press, Beijing,China(1977),(in Chinese)