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The coal sample was smashed with CM41 type impact mill, then screening -0.074 mm material as the flotation input materials.
Applied Surface Science,2008,254:2882-2888
Journal of Chemical Industry and Engineering.China,2004,55(8):1329-1336
Journal of Chemical Industry and Engineering (China), 2004,55(8):1329-1334
[7] Shu, XQ, Zhu, SQ, et al., Zeta potential of different lithotypes in Shenfu coals,Sciences in China,1997.10 [8] Shu XQ, Wang ZN, Xu JQ.

Material Science and Engineering, Southwest Jiaotong University, Chengdu, 610031, China axianing820@163.com, bzhuzhimin@csrpz.com, cxnrpt@163.com Keywords: 6005A aluminum alloy; environmental humidity; salt fog corrosion; corrosion rate Abstract: 6005A aluminum alloys were welded at different relative humidity conditions.
The reason is that different morphologies, the corrosion pits in different size were on the material surface.
Journal of Dalian Jiaotong University, 2009,30(2):66-69. in Chinese [3] Wang Yuanliang.welding technologies of high speed trains[M].
[J]Transactions of Nonferrous Metals Science of China, 2007:326-334 [5]Zhang Xiaomu, Peng Yun, Xiao Hongjun,Yang Bo.
Chinese Academy of Sciences, Shanghai Institute of Metallurgy, Materials Physics and Chemistry (Professional) PhD thesis, 2000.

Experimental Procedure Materials and Composites Fabrication.
Both materials were mixed at the rice straw content of 10-30 wt% and then fed into a twin-screw extruder (Technovel Co., KZW25TW-60MG-NH (-1200)-AKT).
Ratna Prasad: Materials and Design Vol. 31 (2010), p. 508
Shao: Materials Science Forum Vols. 675-677 (2011), p. 361
Fu: Chemical Engineering Journal Vol. 166 (2011), p. 772.

Spikes: Lubrication Science. 18(2006), p 265-291
Dare-Edwards:“Raman Spectra of Fluids in Elastohydrodynamic Contacts”, Materials Research Society Symposia Proceedings, 22, (1984),p151-154
Zhu: Journal of Tribology.
Gonza´lez-Chi: Composites Part A: Applied Science and Manufacturing.38(3)(2007) ,p 819-827
Jones:Materials Science and Engineering A. 412(2005),p83-87

Introduction Graphene, a single sheet of graphite, is one of the most exciting electronic materials in the last years [1].
Geim: Science Vol. 324 (2009), p. 1530 [2] Y.
Schedin et al.: Nature Materials Vol. 6 (2007), p. 652-655 [7] E.
Emtsev et al: Nature Materials Vol. 8 (2009), p. 203-207 [11] A.
Bostwick et al: New Journal of Physics Vol. 9 (2007), p. 385 [12] S.V.

Introduction In the 90’s of twentieth century, great progress has been made in the vanadium steel smelting technology using vanadium slag as raw materials in EAF or ladle instead of vanadium iron to directly alloy hot metal [1~6].
Fig.1 Thermodynamic state diagram of reaction of vanadium oxide and FeSi ΔG0/KJ·mol-1 Temperature/℃ The research methods of V2O5 silicothermic reduction direct alloying Raw material conditions The raw materials include V2O5 powder, FeSi powder and CaO powder.
Table 1 The chemical compositions of raw materials (%) Raw materials V2O5 Si CaO SiO2 MgO Al2O3 P Al C Mn V2O5powder 99.12 - 0.03 0.07 0.36 0.05 0.008 - - - FeSi powder - 73.45 - - - - 0.023 0.87 0.015 0.30 CaO powder - 98.05 0.29 1.34 0.07 - - 0.08 - Research methods Weigh 15g V2O5 and 15.6g FeSi with fully dry and different number of CaO powder.
(In Chinese) [2] Wencai Fang, Jiaqian He: Metallurgical Steel Science and Technology.
Janod: Journal of Crystal Growth.

Especially, it is versatile in different industries for antiwear coatings based on metallic, carbide containing ceramic or composite materials.
Substrate materials The 38CrMoAl steel substrate, which is also same with the material of the engine cylinder bores, with internal diameter of 150mm, height of 200mm and thickness of 8mm, was used.
Acknowledgements This paper is financially supported by the National Natural Science Foundation of China (Grant No. 51175513), 973 Project (2011CB013403) and National Science and Technology Supporting Project (No.201BAC10B05).
Coddet, May 25–29, 1998 (Nice), 0-87170-659-8, ASM International, Materials Park, Ohio, USA (1998), pp. 963–979
Xun: journal of alloy and compounds, 473 (2009) 145-151

Introduction Carbon nanotube was one kind of the most typical and representative nano-materials and its special structure and properties caught people's attention.
In the half a minute, we can not see any carbon nano-materials from the fig.4 (a).
Acknowledgments This research was supported by National Natural Science Foundation of China (NO.50676032).
References [1]Lijima S: Nature Vol. 354(1991), p. 56 [2]Walters D A., Ericson L M, Casavant M J, et al: Apply Physics Letters Vol.74(1999), p.3803 [3]Young-Woo S, Seungeun O, Jisoon I, et al: Nanotechnology Vol. 16(2005), p.125 [4]Ajayan P M, Schadler L S: Advanced Materials Vol.12 (2000), p.750 [5] Seung M L, Kay H A, Won S K, et al: Synthetic Metals Vol. 121(2001), p.1189 [6]Dai H J, Hafner J H, Rinzler A G, et al: Nature Vol.384(1996), p.147 [7]Ando Y, Zhao X, Inoue S , et al : Journal of Crystal Growth Vol. 237-239 (2002), p. 1926 [8]Kokai F, Takahashi K, Iijima, et al: Applied Physics A: Materials Science and Processing, Vol. 73 (2001), p. 401 [9] Kong Jing, Cassell and Alan M: Chemical Physics Letters Vol. 292 (1998), p. 567 [10]Li M, Saito K and Li T: Proceedings of the Combustion Institute Vol. 29 (2002), p. 1087 [11]Liming Yuan, Kozo Saito, Wenchong Hu, et al: Chemical Physics Letters Vol. 364 (2001), p. 23 [12]Merchan-Merchan W, Saveliev Alexei V and Kennedy Lawrence
A: Combustion Science and Technology Vol. 175 (2003), p.2217

Characterization of precipitation process in T24 steel after long – term ageing Grzegorz Golański1,a, Joanna Kępa1,b, Paweł Wieczorek1,c, Krystian Prusik2,d 1Institute of Materials Engineering, Częstochowa University of Technology, Armii Krajowej 19, 42 – 200 Częstochowa, Poland 2Faculty of Computer Science and Materials Science, University of Silesia, Bankowa 12, 40 – 007 Katowice agrisza@wip.pcz.pl, bjkepa@wip.pcz.pl, cpawel@wip.pcz.pl, dkrystian.prusik@us.edu.pl Keywords: T24 steel, ageing, microstructure, precipitate.
The material for research was low-alloy bainitic T24 steel.
Material and methods The tests were carried out on banitic 7CrMoVTiB10-10 (T24) steel with its chemical composition presented in Table 1.
Vandenberghe: International Journal of Pressure Vessels and Piping 84 (2007), p. 13
Zifĉák, in 8th Liege Conference Materials for Advanced Power Engineering, edited by J.

It is shown from above results that Cu and Nb can be used as transition liquid materials of vacuum diffusion welding between Ni and Ti(C,N) and got good welding properties.
References [1] Zheng Yong Xiong Wei-hao, Microstructure and Properties of Micon and Submicron Ti(C,N) Based Cermets, Materials Engineering, No.5 (2001),p. 37 [2] Ettmayer P, Lengauer W.
Journal of Hefei University of Technology, Vol. 27(2)(2004),p.123 [9] N.
International Journal of Refractory Metals & Hard Materials,Vol. 20(2002),p.169 [11] G.
Upadhyaya: Nature and properties of refractory carbides(Nova Science Publishers,Inc.