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Aviation gear material is usually made of high quality carburizing steel.
Mechanics properties of gear axis material are gained by linear interpolation under this temperature.
[8] Haddar N, Fissolo A, Thermal fatigue crack networks: An computational study, International Journal of Solids and Structures. 42(2009): 771-788
[9] Yang GT, Theory of elasticity and plasticity, Beijing: China Building Materials Industry Press (2009)
New York: Wiley International Science Publication (2005).

In order to remove the magnetic interference, non-magnetic material is used for the outside of the piston.
It is noted that the material for the inner and outer piston is mild steel featuring a strong magnetic property, while the material for the piston rod and cylinder is aluminum featuring relatively low permeability.
Carlson: Journal of Engineering Mechanics, Vol. 123 (1997)
Carlson: Smart Materials Structures, Vol. 5, (1998)
Dyke: ASCE journal of engineering mechanics, Vol. 126 (2000)

Kida, Changes in the microstructure of 13Cr-2Ni-2Mo stainless steels thorough the quenching process by induction heating, International Journal of Materials and Product Technology. 45 (2012) 31-40
Kida, Evaluation of rolling contact fatigue of induction heated 13Cr-2Ni-2Mo Stainless steel bar with Si3Ni4-ball, Material Science and Engineering, 324 (2018) 012064
Shibukawa, Single-ball rolling contact fatigue of 13Cr-2Ni-2Mo stainless steels quenched by induction heating method, Applied Mechanics and Materials. 300-301 (2013) 1372-1376
Kanemasu, Investigation of crack intiation and propagation during rolling contact fatigue of SUJ2 steel bearings using a newly developed one-point testing machine, Advanced Materials Research 418-420 (2011) 1613-1617
Hertz,　Ueber Die Berührung Fester Elastischer Körper, Journal für die reine und angewandte Mathematik. 92 (1881) 156-171

Poisson ratio and shear modulus of wheel/rail material are selected as 0.28, 7.8125×10 4 N/mm2, respectively.
Then it is helpful to alleviate the fatiuge damage of wheel/rail material.
Acknowledgements The research is supported by National Natural Science Foundation of China (No.50875221) and Funds for Basic Research Program of Sichuan Province (No.2008JY0066).
Smith:Fatigue & Fracture of Engineering Materials and Structures Vol.26(2003),p.901 [5] XIAO Guangwen, XIAO Xinbiao and WEN Zefeng:Journal of the China Railway Society Vol.30(2008),p.29 (In Chinese) [6] JIN Xuesong and LIU Qiyue: Tribology of wheel and rail(China Railway Press,Beijing 2004)
[7] JIN Xuesong and WEN Zefeng:Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology Vol.221(2007), p.675 [8] I.Y Shevtsov, V.L.

Study on Factors Affecting Properties of Silica Liu Quanxiao*, Xu Wencai, Lv Yubin, Li Jinli Beijing Key Laboratory of Printing & Packaging Materials and Technology, Beijing Institute of Graphic Communication, Beijing, 102600, China *Corresponding Email: drllqx@163.com Keyword: silica, precipitation method, specific surface area, DBP absorption value, particle size.
Experiments 2.1 Raw materials Sodium silicate, Sulphuric acid, industrial grade. 2.2 Performance measurements 2.2.1 Performance measurement of silica Measure specific surface area and DBP absorption value of silica according to the national standard. 2.2.2 Particle size analysis of silica Analyze particle size with SA-CP3 CENTRIFUGAL PARTICLE SIZE ANALYZER made in Japan.
This is because the electrolyte in initial substrate material (Sodium silicate solution) and the concentration of silica can be partly regulating the performance of silica.
Nanchang University Journal.
Journal of Inorganic Chemistry.

Lead Oxide Plate Precipitates from Lead Nitrate Solution Gangqiang Yang1,2,3,a, Xiaoping Zou1,2, 3,b, Xiangmin Meng3, Jin Cheng1,2, Xueming Lü1,2, Cuiliu Wei1,2, Zhe Sun 1,2, Hongying Feng1,2 and Yuan Yang1,2 Corresponding to Xiaoping Zou (xpzou2005@gmail.com) 1 Research Center for Sensor Technology, Beijing Key Laboratory for Sensor, Beijing Information Science and Technology University, Jianxiangqiao Campus, Beijing 100101, China 2 Ministry-of-Education Key Laboratory for Modern Measurement and Control Technology, Beijing 100101, China 3 Key Laboratory of Photochemical Conversion and Optoelectronic Materials, TIPC, CAS, Beijing 100080, China a yanggangqiang08@gmail.com, bxpzou2005@gmail.com Keywords: α-PbO; β-PbO; chloride ions; controlled synthesis Abstract: In this paper, a simple and controllable method to fabricate α- and β-PbO is reported.
Such as, a new-style electrode materials [4], pH-sensitive material and a screen printed technique [5].
KF20091077207, the Program of Key Laboratory of Photochemical Conversion and Optoelectronic Materials, TIPC, CAS and the Scientific Creative Platform Foundation of Beijing Municipal Commission of Education under Grant No.
Xia: Chinese Journal of Applied Chemistry Vol. 18 (2001), p. 264 (in Chinese) [5] Y.Q.
Yuan: Chinese Journal of Applied Chemistry Vol. 17 (2000), p. 316 (in Chinese) [6] J.

It is the base for engineers can translate the material in lab into material in construction.
Advanced Composite Materials In Bridges And Structures.2004 [4] Hitachi Zosen Corp, Osaka.
Journal of the Textile Machinery Society of Japan.1987,33(1):16~21 [5] Richard E.
ASCE Design Standard for Pultruded Fiber-Reinforced-Plastic (FRP) Structures.Journal of Composites for Construction. 1997(1):26~38 [6] R.A.P.Spencer, B.
Applied Science Publishers,London.1983:1~36 [7] ISIS CANADA.Reinforcing Concrete Structures with Fibre Reinforced Polymers.Design Manual No.3,2001

Study of a new elastic alloy, Material Review, 19(2005), 54-55
Research and application for elastic dental film, Journal of Clinical Stomatology, 12(1996), 90-91
Development for High elastic limit and New elinvar elastic alloy, Material Research, 12(1990), 13-17
Research for high elastic and electrical conductivity Cu-Ni-Sn alloy, Material science and engineering, 13(1997), 61-66
Journal of Alloys and Compounds, 2004, 378: 140-144

The welded will show up lighter, and the darker material next to it is the rearranged grain structure, due to the heating and cooling cycle.
First the material is cleaned, polished, etched and dried.
The weld will show up lighter, and the darker material next to it is the rearranged grain structure.
References [1] Eijk C., (2003) Plasma Welding of NiTi to NiTi, Stainless Steel and Hastelloy C276, ASM Materials Solutions Conference, USA [2] Study on microstructure and mechanical properties of 304 stainless steel joints by TIG, laser and laser-TIG hybrid welding J Yan, M Gao, X Zeng - Optics and Lasers in Engineering, 2010 – Elsevier [3] Effects of laser shock processing with different shocked paths on mechanical properties of laser welded ANSI 304 stainless steel joint, L Zhang, KY Luo, JZ Lu, [4] Experimental investigations of weld characteristics for a single pass tig welding with SS304 – S.P Gadewar [5] The plasma arc welding of NiTi and 304 steel-P.Vondrous
[6] The Phase formation in TiNi dissimilar welds, material science and engineering-S.Chatterjee [7] The journal of prediction of welding process parameter by prediction of back-bead geometry, journal of material processing technology-Lee.J

Preparation of Liquid Fuels from Chark Chemical Tar Smagulova Nazym1,a, Kayrbekov Zhaksyntay2,b and Yesengeldieva Akzhan3,c 1,2,3Al-Farabi Kazakh National University, Scientific Research Institute of New Chemical Technologies and Materials, Almaty, Kazakhstan e-mail: a nazym2011@inbox.ru, bZhaxyntay.Kairbekov@kaznu.kz, cakzhan91-10@bk.ru, Keywords: Catalyst, Chark chemical tar, Hydrogenization, Motor fuel, Liquid products.
Basic researches in the field of natural sciences according to the program «To develop scientific bases of processing of combustible minerals and receiving new materials».
Samohvalov, Deep processing of oil, Materials of conference, Irkutsk, 1997. p. 76 [3] E.D.
Russian Chemical Journal. 38 (1994) 12-17 [4] A.A.Krichko, A.S.Maloletnev, S.N.
Russian chemical journal, 38(1994) 100-104 [5] L.A.