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Zhang1 1Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, Yunnan, China 2Department of physics and electronics, Chuxiong Normal University, Chuxiong 675000, Yunnan, China alxjim@126.com Keywords: Laser Induced Voltage(LIV); Film thickness; Pulsed Laser Deposition(PLD); Abstract.
Laser induced off-diagonal thermoelectric voltages were observed in La0.67Ca0.33MnO3 thin films deposited on vicinal cut SrTiO3 substrates, which indicates that the ALT property consists not only in the high temperature super-conductor(HTSC) oxide material group, but also other oxide materials[5].
Which are according to the results of formula describing as follows[20]: (1) Where a0 was the absorption coefficient of the thin film material, E the laser energy density per pulse, l the length along X direction or the irradiated film length, d the thickness of the film, a the tilted angle of c-axis or the normal surface of film, r the mass density, c0 the specific heat, D the thermal diffusion constant, (Sab−Sc) was the difference of Seebeck coefficient in ab-plane(Sab) and along the c-axis(Sc), and d the penetration depth of the laser radiation into the thin film material.
Acknowledgements This work was supported by Natural Science Foundation of China (Grant No.50974066), Natural Science Foundation of Yunnan (Grant No.2009ZC013M) and Measurement Foundation of Kunming University of Science and Technology (Grant No.2010001 and 2011040).
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The arduous conditions of mechanical, thermal and corrosive loading lead to several materials and processing challenges where mechanical properties and metallurgical stability must be maintained in a service environment where temperatures are increasing.
In terms of materials, this has meant the development of newer alloys, e.g.
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Ceramic materials have limited use due to their brittleness.
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Synchronized Hydraulic Bulging Forming Technology of Three-layer-metal Tubes W.W.Wang 1, a , J.L.Song 2,b , J.B.Yu 1,c and B.B.Jia 1,d 1 School of Materials Science and Engineering, Harbin Institute of Technology (Weihai), Weihai 264209, China 2 School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China awangww@hitwh.edu.cn, bsongjianli06@sina.com, chityjb328@163.com, djbb@hitwh.edu.cn Keywords: clad tube, residual contact pressure, hydraulic bulging.
Since the clad tubes have the advantages of different materials of inner or outer tubes, they can be widely used in different fields[1,2].
Bulging forming experiments Practical bulging forming experiments of three-layer-metal tubes is conducted based on the materials combination shown in Tab. 1.
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Materials Polypropylene (PP) homopolymer resin grade PX617 was a product of Titan PP Polymers (PP) Sdn.
Palm fruitlet fibers (PFF) were waste materials procured from Batu Lintang Oil Palm Mill Sdn.
Rawlings, Composite materials: Engineering and Science, Woodhead Publishing, United State of America,1999
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Some theoretical approaches to the interpretation of deformation processes in polycrystalline materials are known.
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All materials were dried for 6 hours at 60 oC.
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Flowing liquid metals are primary candidates for the spallation target material, due to the high power density deposited by the proton beam.
However, liquid metals can be corrosive towards containment materials of interest (austenitic steels and Fe-9Cr alloys)[1].
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Study on High-speed Milling Database of Aerospace Typical Parts Yiwen Wang1,a, Mingna Ding1,b, Lei Sun1,c , Zhen Chen1 and Yuhui Shen1 1 Harbin University of Science and Technology, Harbin, Heilongjiang, China a yiwen0451@126.com, b mingnading@126.com, c sunlei860422@163.com Keywords: Cutting Database, High-speed milling, Closed impeller, Hybrid Reasoning.
For example, select the integral impeller in a typical part, and then enter the appropriate values in each of the indicators: machining accuracy: 0.005mm, allowance: 0,diameter : 170mm, height : 65mm, minimum blade pitch: 8.25mm, fillet diameter: 3mm, processing materials: Ly2024, and then select the appropriate machine tool and cutting tool (you can also directly request the database recommended tool or machine for you), and then click on the button of optimization ,the result is shown in Fig. 4.
Acknowledge The work presented in this paper was supported by National Science and Technology Major Project of China “High-end NC machine tools and manufacturing equipment” (2012ZX04003051).
(MS, Harbin University of Science and Technology, China 2012), p.1-5.
Wang: Journal of Taiyuan University of Science and Technology, Vol.31 ( 2010) No. 6, p.467-471.