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Introduction In recent years, many efforts have been focused on the organic/inorganic composite materials with various compositions.
Among many inorganic chemicals, titanium dioxide, TiO2, is one of the most useful inert materials, and it is non-toxic, and inexpensive in the nanocomposite synthesis.
Experimental Materials PA66 (101L) used in this work was purchased from Dupont Ltd., USA.
It should be noted that the friction coefficient of the materials was reduced with load in the test.
Shanghai Municipal Natural Science Foundation：11ZR1413600.

Now we mainly improve by adding appropriate electric conduction. due to special structure, good electrical conductivity and chemical stability in strong alkali electrolyte and not with electrolyte or other active material of nickel positive produces chemical reaction, CNTs are considered to be ideal additives for α-nickel hydroxide electrode active materials[4].
Compared with d value (0.779) for standard α-Ni(OH)2·0.75H2O of the peak(003),it is observed that the d value of 15%Al3+ doped α-nickel hydroxide is larger than other materials, equals 0.814nm,this implies that the 15%Al doped α-nickel hydroxide material has better protons migrating ability[6]. so the next test studies on the 15%Al doped α-nickel hydroxide material in this work.
Acknowledgment We gratefully acknowledge the financial supports of National Natural Science Foundation of China(20563001) and Guangxi Science Research and Technology Developing Foundation (073101,0842003-12) References [1] Y.H.
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Wu2 School of materials science and technology, Nanjing University of Aeronautics and Astronautics, Nanjing, china, 210016 1.Wg641022@126.com, 2.baolinwu02@yahoo.com.cn Key words: AZ31 magnesium alloy; Equal channel angular pressing(ECAP); Microstructures; Texture; Dynamic anisotropy Abstract: the microstuctures and orientations changing of hot extrusion AZ31 magnesium alloy were obtained by equal channel angular pressing (ECAP).
Especially, the high strain rate response of these materials is of great importance to the automotive, aerospace and defense industries.
Koike, Metallurgical and Materials Transaction A, 36A (2005), p. 1689 [3] Koike J, Kobayashi T, Watanabe H.
Liu, Materials Science and Engineering A, 483-484(2008), p. 576 [7] Matthew T Tucker, Mark F.
Abouridouane, International Journal of Impact Engineering, 32 (2006), p. 741 [9] Wei Qian Song, Peter Beggs, Mark Easton, Materials and Design, 30 (2009), p. 642 [10] Su-Tang Chiou, Hsien-Lung Tsai, Woei-Shyan Lee, Journal of Materials Processing Technology, 209 (2009), p. 2282

The effective diffusion coefficient Deff is an important parameter to represent the resistance of sulfate attack of concrete materials.
Due to continuous hydration of cement, it can gradually improve the density of the concrete materials.
References [1] Jiankang Chen and Minqiang Jiang: Construction and Building Materials.
Mobasher: Journal of Materials in Civil Engineering.
Vol. 27(1997), p.1591 [9] Clifton J R and Ponnersheim J M: Sulfate attack of cementitious materials: Volumetric relations and expansions [R].

Usually, the long-term creep behavior of polymer materials has closed relation with the time-dependent (viscoelastic) response [7].
Materials and method Materials produce.
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Dong: Polymer Materials Science and Engineering, Vol. 26 (2010) No.65, pp.189-192.
[8] JINR G and LIU W: Journal of Beijing Institute of Chemical Technology, Vol. 21 (1994) No.1, pp. 35-40.

Manisheva1,2,e 1Institute of Strength Physics and Materials Science of Siberian Branch Russian Academy of Sciences, 2/4, pr.
Engineering materials, processes, Berlin: Springer (2007) 1-39
Mouritz, Introduction to Aerospace Materials, Woodhead, Publishing in Materials, 2012
The effect of alpha-case formation on plastic deformation and fracture of near β titanium alloy, Materials Science & Engineering A 769 (2020) 138495
Microstructure evolution during warm working of Ti-5Al-5Mo-5V-1Cr-1Fe at 600 and 800oC, Materials Science and Engineering A. 563 (2013) 168-176

Often, in order to improve the design of nanocomposites, they are simulated using the finite element (FE) method to predict materials mechanical properties with different modeling strategies.
Experimental Materials.
In this regard, to overcome the problem quantitative TEM tomography can be used as a tool that will help to create representative and realistic models of the materials under study.
Thomas, Electron Tomography of Nanoparticle Catalysts on Porous Supports:  A New Technique Based on Rutherford Scattering, Journal of Physical Chemistry B, 105 (33), (2001) 7882-7886
Ibarretxe, Journal of Applied Polymer Science, 131 (18), (2014)

It is a process that a large wide variety of rural crop straw is taken as raw materials to make combustible part of the biomass into combustible gas by thermo-chemical reaction under the condition of high temperature, mainly providing rural users fuel gas for cooking and heating.
Bio-diesel research and development in China have been fruitful, and started building processing enterprises in the south, such as rapeseed oil, cottonseed oil, wood oil, camellia oil and waste oil etc are taken as raw materials to produce bio-diesel in small scale.
In recent years, in order not to compete raw materials with edible oil and industrial oil, the technology that jatropha fruit, pistacia seed, etc are taken as raw material to produce bio-diesel, is initially with the condition for commercial development.
References [1] Zong-hu Lin: submitted to Chinese Journal of Nature(2010).
[7] TA HERZADEH MJ, KARIMI K: submitted to International Journal of Molecular Science(2008)

Materials Science Forum.
Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, 2017, 35(1): 01A101
Materials Science Forum.
Materials Science Forum, 2011, 679-680:366-369
Materials Science Forum, 2012, 717-720:465-468

Electrode materials of the NTP reactors can be selected to catalyse the treatment process; for example, silver electrodes can assist in pathogen inactivation since silver is known to have anti-microbial properties [11].
Experimental Section 2.1 Materials and setup A point-to-plane electrode configuration was used in discharge reactor for the experiments in this study (Fig. 1).
Materials,12 (2019) 2751
The European Physical Journal D, 72 (2018) 217
Journal of Hazardous Materials, 94 (2002) 89-99