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Research of shrinkage process for Fe-0.18%C cast ingot during solidification Qingchun Li, Bo Wang, Xudong Yue, Guangcan Jin and Guowei Chang School of Materials Science and Engineering, Laoning University of Technology, Jinzhou 121001, China Email:lqcsusan@126.com, adherent@163.com, x.d.yue@163.com, g.w.chang@hotmail.com,emily929@126.com Keywords: carbon steel; metallic solidification; shrinkage process Abstract.
Emi: Metallurgical and Materials Transactions Vol. 31B (2000), p. 981 [2] N.J.
Sridhar: Metallurgical and Materials Transactions Vol. 34A (2003), p. 1931 [3] Y.
Shibata: Metallurgical and Materials Transactions Vol. 36A (2005), p. 3065 [4] D.Phelan,M.Reid and R.Dippenaar: Metallurgical and Materials Transactions Vol. 37A (2006), p. 985 [5] N.J.
Sridhar: Journal of Materials Science Vol. 40 (2005), p. 2411 [6] Klaus Harste: ISIJ International Vol. 43 (2003), p. 1011 [7] A.A.Semionov and I.A.Aleksakhin: Metal Science and Heat Treatment Vol. 1(1959), p. 57 [8] Young Mok Won, Tae Jung Yoe and Dong Jin Seol et al: Metallurgical and Materials Transactions Vol. 31B (2000), p. 779 [9] Toshihiko Emi and Fredriksson: Materials Science and Engineering A Vol. 413-414 (2005), p. 2

Materials Science and Engineering A Vol. 302(2001), p. 37
Fan: Journal of Materials Science Vol. 39(7) (2004), p. 2617
Fan: Materials Science Forum 546-549 (2007), p. 77
Gou: Key Engineering Materials Vol.631-634 (2004), p. 363
Lu: Materials Science and Engineering A Vol. 364 (2004) p 11.

Studies in Science of Science, 10, 1568-1576(2011) (in Chinese) [5] Renaud Bellais.
Post Keynesian Theory, Technology Policy, and Long term Growth .J.Journal of Post Keynesian Economies, 26(3), 419-444(2004) [6] Dang Yaru.
Province science and technology resources based on DEA efficiency evaluation of development .J.
Science and Technology Management Research, (16), 66-72(2011) [7] Schoenecker T, Swanson L.
Journal of Interdisciplinary Economies, 20(1-2), 149-166(2009) [9] Wang Jianwu, LuQinghua.Capacityfortechnology0pushspillovereffect of FDI on China.

Material and Methods Material.
The global environment: science, technology and management.
Weinheim: Scandinavian Science Publ.; VCH (1997) 599-609
Journal of the Geological Society, London, 148 (1991)
Australian Journal of Earth Sciences (2001) 48, 489-499.

Research of Soldering Silicon Substrate with Solder Type Sn-Ag-Ti KOLEŇÁK Roman a, PRACH Michal b Slovak University of Technology in Bratislava, Faculty of Materials Science and Technology in Trnava, Paulínska 16, 917 24 Trnava, Slovak Republic aroman.kolenak@stuba.sk, bmichalprach@gmail.com Keywords: Active solder, Shear strength, Ultrasonic soldering Abstract.
Introduction Present production process necessitates to join different materials as ceramics, non-metals and metals.
Joining of ceramics or non-metals (silicon) with metals brings about different problems caused mainly by different properties of these materials [1].
Chuang, et al., Active soldering of ZnS–SiO2 sputtering targets to copper backing plates using an Sn3.5Ag4Ti(Ce, Ga) filler metal, Journal of Materials Processing Technology, Vol. 202, 2008, pp. 22-26
Žúbor, Soldering of Ceramic Materials Using Ultrasonic Energy, Welding in the World, ISSN 0043-2288, Vol. 49, 2005, pp. 546-553

References [1] China Aeronautical Materials Handbook Editorial Board (eds.), China Aeronautical Materials Handbook, vol.4, Standards Press of China, Beijing, 2002, pp 179-187
Froes, Producing titanium aerospace components from powder using laser forming, JOM Journal of the Minerals, Metals and Materials Society, 52(2000) 28-30
Voice, Microstructures of laser-deposited Ti-6Al-4V, Materials and Design. 25(2004) 137-144
Wang, Microstructure evolution of sub-critical annealed laser deposited Ti-6Al-4V alloy, Materials & Design, 37 (2012) 56-63
Nelson, Understanding thermal behavior in the LENS process, Materials & Design. 20(1999) 107-113

Activated carbon varies in porosity and surface chemistry with the coalification of raw materials.
Experimental Materials.
There is a great difference between samples resulting from different raw materials.
Chen, et al., Activated carbon with excellent chromium adsorption performance prepared by acid-based surface modification, Journal of Hazardous Materials. 1 (2007) 315-319
Wendel, et al., Nickel adsorption by sodium polyacrylate-grafted activated carbon, Journal of Hazardous Materials. 1-3 (2009) 335-339

Study on Chloride Ion Penetrability of Recycled Aggregate Concrete S.W.Yao Hebei Provincial Key Laboratory of Inorganic Nonmetallic Materials; College of Materials Science and Engineering, Hebei United University; Tangshan 063009, Hebei, China yaoshaowei389@163.com Key words: Recycled aggregate concrete; Chloride ion penetrability; Durability Abstract: Chloride ion penetrability of recycled aggregate concrete is one of durability, but it is less on research at present.
Introduction Concrete is the amount biggest building material in all construction project, and the use level of our country's concrete is the first in the whole world.
If we make the waste construction materials to crack, separate, and process recycled aggregate of concrete, it can be used in new buildings, so it is able fundamentally to solve the problem of construction waste material processing and reduce the freight volume and natural aggregate amount of use[1].These measures not only can reduce the cost, save the natural aggregate resources, release aggregate supply contradictory, but also can reduce the waste construction materials to the urban environment pollution.
Under normal circumstances, the penetration of chloride ion is a combination of a number of ways, in addition to effects of chemical combination, physical bonding and adsorption between chloride ion and concrete materials [4].
[4] Tang Luping, Lara-Olaf Nilsson, ACI Materials Journal, 9, No.1(1992) 49.

Materials and Methods Materials Porous HA/TCP ceramics were used, which consist of 60% HA and 40% β-TCP.
The implanted materials were harvested at 1, 2, 3, 4, 6and 12 months after implantation.
a b c e f d inorganic bone implanted materials.
"Studies on the mechanism of porous β-TCP/HA biphase ceramic-induced osteogensis," Journal of Sichuan University Natural Science Edition.
J of Mater Sci: Materials in Medicin.

China 2College of Civil Science and Engineering, Yangzhou University, P.R.
On the other hand, some soft materials or materials look like soft make the surface like a dressing on a girl.
Like DNA in traditional architecture is expressed on the façade, and mass production involves innovative production process and high-tech materials also put its influence on the surface.
Sanjay: Indian Concrete Journal, Vol. 83 (2009) No.5, P.56-68
Chakchai: IEEE Journal on Selected Areas in Communications, Vol. 28 (2010) No.8, P.1344-1362