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Study on the friction properties of porous Al2O3 ceramic/ Al2O3 ultrafine particle/ epoxy new composites Jing-yuan Yu1, a 1 College of Materials Science & Engineering, Liaoning University of Technology, Jinzhou 121001 a yujingyuan1979@yahoo.com.cn Keywords: Porous Al2O3 ceramic; Al2O3 ultrafine particle; epoxy; composites; friction property Abstract.
Acknowledgements This work was supported partly by Innovation Research Team Program of the Ministry of Education (IRT0713), and Funded by the Key Laboratory of New Materials in Automobile of Liaoning Province(201016201).
Wang: Journal of Materials Processing Technology.
Zhang: Composites Science and Technology.
Li: Materials Science and Engineering: A.

This process was carried out in the Department of Materials Science and Metallurgy at Cambridge University.
While the fcc phase is free to deform axisymmetrically, the preference of bcc materials to adopt a <110> texture during swaging results in the curling and folding effect evidence in the Cr fibres shown in figure 2.
Table 1 Mechanical and materials properties of the Cu-Cr composites with temperature Figure 5 is polarization curve of Cu-10% Cr alloy in 1.0M H2SO4 solution and SEM image of corroded surface.
Acknowledgements One of authors would like to thank Korea Institute of Science & Technology Evaluation and Planning (KISTEP) and Ministry of Science & Technology (MOST), Korean government, through its National Nuclear Technology Program.
Bell, Journal of Applied Physics, Vol. 49 (1978) p.6031

Materials and methods Table 1, Specifications of fabricated catalytic converter S.NO SPECIFICATION NEW CATALYTIC CONVERTER 1 Substrate material Stain less steel mesh 2 Wash coat material Alumina 3 Catalyst used Magnesium 4 Specific area 7560 cm2 5 Constructing material G.I.Steel Wire mesh treatment The substrate material used is stainless steel.
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Introduction Most of the structural steels classified as elastic-plastic materials fail due to the void nucleation, growth, and coalescence mechanism.
The material cell was a square prism.
The inclusion in the material cell Fig. 2.
At the beginning, a stress concentration caused by different values of stiffness of materials may be observed at the location where the cross-section of the matrix is the smallest.
The author gratefully acknowledges financial support from the National Science Centre, Poland under project number 2014/15/B/ST8/00205 References [1] Gałkiewicz J., Microscopically based calibration of the cohesive model, Journal of Theoretical and Applied Mechanics, 53(2), 2015 [2] Maloney J.L., Garrison Jr.

Nevertheless, materials with favorable ductility cannot be acquired the fracture with such a test.
Result and Discussion In the retaining pin process, the first stage upsetting pre-forming, mainly for workpiece upsetting, aims to reserve the fixed face forming materials for expanding the head flat to achieve the precision requirement.
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Geopolymer is a binder from a non-organic material formed from solid materials synthesized by aluminosilicate material reaction, such as the reaction of fly ash and alumina with alkaline liquid mixture.
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However, most of the previous researches were focused on the bulk and compact materials [5], few of them were placed emphasis on powder materials.
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Abrams, [15] proposed that the amount of the particle size of the bridging materials should be at least equal to or greater than one-third of the pore size of the reservoir rock.
The current ability of nanotechnology to manufacture nanoparticles with specific characteristic properties is expected to play a leading role in overcoming technical challenges associated with conventional macro/micro material- based drilling fluids [19].
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Materials and methods Materials.
Table 1 Oxide compositions of material (mass fraction, %) Element SiO2 CaO Al2O3 MgO Na2O TiO2 P2O5 K2O Fe2O3 burning loss Content（%） 68.48 0.44 6.66 0.59 0.08 0.534 0.22 3.05 4.35 12.21 Table 2 Chemical compositions of material (mass fraction, %) Element V2O5 Cu Zn Ni As Ga Mn S Content（%） 1.09 0.013 0.005 0.02 0.05 0.0015 0.006 2.51 Methods.
Acknowledgements The authors acknowledge the financial support by National Key Technology R&D Program (2009BAA20B02) (China) and Science Fund for Young Scholars of Xi’an University of Architecture & Technology Project (QN0918) (China).
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