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So these are concerned with such things as materials science, superconductivity, microelectronics, optoelectronics, sensors and micro-nano science etc, they have been extensively investigated and utilized up to now.
One of the representations being studied widely is called C60, and the results of C60 are especially important in the superconductors, optical materials, functional materials and biomaterials.
Fig. 3 Transmission coefficient - Energy spectrum in atomics lines C60 model Fig. 4 I-T curve for C60 single-molecule system When C60 contacts with metal atomics line, the interfaces of these two materials will form a barrier, the barrier height is closely related with materials and temperatures.
And we can choose some different atomics materials in order to make unequal current ratio values.
Actually in order to make the device work better, we should select the appropriate Fermi temperature of working materials that is so necessary.

Introduction The mechanical, magnetic, electrical, and thermal properties of several materials can be modified without necessarily changing their chemical composition, with a simple change of the molecular structure.
In this sense, it is important to study the factors that influence the change of the internal structure in a certain material, therefore from the control of the involved variables, materials with superior properties, smaller specific mass and better corrosion, oxidation, wear resistance can be obtained [1].
Thus, the knowledge and the control of the involved thermal parameters are very important in Materials Engineering, once the temperature levels and the cooling rates are deterministic to the specification of the properties that the material will attain after the thermal treatment [3].
Van Vlack, Elements of Materials Science and Engineering, 6th ed., Prentice Hall, New York, 1989
Maia, Limiting Power of Nuclear Fuel Cell with Variable Sources, International Journal of Science and Advanced Technology 4 (2014) 7-15

School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China 2.
Materials An Mg-Al-NO3 LDH is used in the experiment.
Table 1 The oxide compositions of LDH and PC Materials Na2O MgO Al2O3 SiO2 P2O5 SO3 K2O CaO TiO2 Fe2O3 L.O.I.
Journal of Molecular Catalysis B: Enzymatic.
Layered double hydroxide-like materials: nanocomposites for use in concrete.

Because of the penetrating of neutron and gamma-ray, the whole element information of bulk materials can be acquired.
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Numerical Simulation of Microstructure Evolution of Hot Forging Zhihao Ma1, a, Xiaolei Dong2,b , Bing Yun3,c 1,2School of Mechanical Engineering, Hebei United University, Tang shan Hebei, 063009 China 3School of Materials Science and Engineering, University of Science & Technology Beijing, Beijing, 100083 China amazhh2008@yahoo.cn, bgrmmdxl@163.com, cring_yb@126.com Keywords: Hot-Forging; Dynamic Recrystallization; Grain Size Abstract.
Hot forging changes stress state of materials and makes the internal microstructure change significantly; while changes in the microstructure not only have an effect on the deformation process, but also determine the final performance of the product to a large extent.
References [1] Xiaoli Li, Miaoquan Li.Materials Characterization, 2005(55):362-370
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To manufacture composite materials with enhanced properties, different kinds of the literature suggested implementing coating materials on either fibers or nano-fillers.
The material composition of the composite materials affects heavily the mechanical properties and the associated natural frequencies of the composite structure.
Table 2: Mechanical properties of materials composed the hybrid epoxy matrix.
Ungbhakorn, Analytical solutions for bending, buckling and vibration responses of carbon nanotube-reinforced composite beams resting on elastic foundation, Computational Materials Science. 71 (2013) 201-208
Tornabene, Free vibration analysis of conical shells reinforced with agglomerated Carbon Nanotubes, International Journal of Mechanical Sciences. 108 (2016) 157-165

In this case, the purpose was to verify the possible changes in these materials when subjected at low temperatures.
In general, the main production of metallic materials is purchased by casting.
Winter: Copper: Properties and alloying, Encyclopedia of Materials Science and Engineering (Ed.
Taubenblat: Copper Selection of high conductivity alloys, Encyclopedia of Materials Science and Engineering (Ed.
REED, Advances in Cryogenic Engineering, Materials, volume 30, Plenum Press, New York (1984) [21] J.

China Civil Engineering Journal, 2004, 37(5): 101~105 [4] Liang Meijian, Zhu Yunwei.
China Soft Science, 2006, (6): 13~19 [7] Jia Junfeng, Liang Qinghuai.
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On the other hand, employing traditional materials for these shells cannot provide necessary requirements.
Therefore using new materials should be considered as substitutions for them.
In this regard, fiber reinforced composites due to high strength to weight ratio and functionally graded materials (FGM) in which volume fractions of two or more materials varied continuously along a certain dimension [2] as new materials have received considerable attention recently.
Shiota, in Proceedings of the First International Symposium on Functionally Gradient Materials. , Japan., 1990
Jones, Mechanics of composite materials.

These include: Elasticity: The ability of the material to regain its original shape after deformation Plasticity: The capacity of a material to resist breakage when undergoing permanent material deformation.
International Journal of Science and Research (IJSR), vol. 4, 2015, pp. 5-611.14
The International Journal of Advanced Manufacturing Technology, vol. 84, 2021
International Journal of Design Engineering, vol. 5, no. 4, 2014, pp. 358-373
Materials Evaluation, vol. 68, no. 5, 2010, pp. 26-31