International Journal of Materials Science and Applications

Volume 2, Issue 3, May 2013

  • Effect of Phase Transition Temperature of Bati0.9Sn0.1o3 on the Operating Mode of Ferroelectricrandom Access Memories (FeRAM)

    M. Ourrad, A. Merad, T. Benouaz

    Issue: Volume 2, Issue 3, May 2013
    Pages: 78-82
    Received: 28 March 2013
    Accepted:
    Published: 02 May 2013
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    Abstract: The outstanding dielectric, ferroelectric and piezoelectric properties of BaTiO3 make it the desirable primary material for a variety of applications such as nonvolatile memories (RAM). At the Curie’s temperature the dielectric prop-erties of BaTiO3 undergo phase transition. The Landau-Devonshire’s phenomenological theory has been investigated in t... Show More
  • A Practical Electrode for Microwave Plasma Processes

    Hiromichi Toyota, Shinfuku Nomura, Shinobu Mukasa

    Issue: Volume 2, Issue 3, May 2013
    Pages: 83-88
    Received: 10 April 2013
    Accepted:
    Published: 02 May 2013
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    Abstract: In-liquid plasma chemical vapor deposition (CVD) method is useful for high speed production of high quality diamond films. The method is simple and secure comparing usual CVD methods. In this paper, new electrodes for in-liquid plasma CVD by receiving microwaves are developed and introduced. This paper examines the fabrication of electrodes that en... Show More
  • Effect of Li2CO3 Addition on the Sintering Behavior and Physical Properties of PZT-PZN-Pmnn Ceramics

    Le Dai Vuong, Phan Dinh Gio

    Issue: Volume 2, Issue 3, May 2013
    Pages: 89-93
    Received: 13 May 2013
    Accepted:
    Published: 10 June 2013
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    Abstract: The 0.8Pb(Zr0.48Ti0.52)]O3–0.125Pb(Zn1/3Nb2/3)O3–0.075Pb(Mn1/3Nb2/3)O3 + x wt% Li2CO3 ceramics (PZT-PZN-PMnN), where x = 0  1.0, has been prepared by two-stage calcinations method. The Li2CO3 addition significantly improved the sinterability of the ceramics, resulting in a reduction of sintering temperature from 1150 0C to 930 0C. The effect of th... Show More
  • Relationship between Graphite Flake Sizes and the Mechanical Properties of Grey Iron

    Adeleke Victor Adedayo, A. V.

    Issue: Volume 2, Issue 3, May 2013
    Pages: 94-98
    Received: 17 May 2013
    Accepted:
    Published: 10 June 2013
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    Abstract: Cast Irons are important engineering materials which possess a wide range of attractive properties. Their properties are significantly dependent on the microstructure of the cast, cast iron components. A way of controlling the microstructure of cast iron is through the control of cooling rates during solidification. To control cooling rate, the hea... Show More
  • Determination of the Contact Angles of Kaolin Intercalates of Oleochemicals Derived from Rubber Seed (HeveaBrasiliensis) and Tea Seed (CameliaSinensis) Oils by the Capillary Rise Method

    Chinedum Ogonna Mgbemena, Chika Edith Mgbemena, Rugmini Sukumar, A. R. R. Menon

    Issue: Volume 2, Issue 3, May 2013
    Pages: 99-103
    Received: 21 May 2013
    Accepted:
    Published: 10 June 2013
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    Abstract: Pristine kaolin was organically modified by employing derivatives of oleochemicals namely rubber seed oil (SRSO) and tea seed oil (STSO). Intercalation was attained by the entrance of hydrazine hydrate as co-intercalate. Characterization of the pristine kaolin and modified kaolin was done using powder X-ray diffraction which revealed increase in th... Show More
  • Adaptive Finite Element Modeling of Fatigue Crack Propagation

    Abdulnaser M. Alshoaibi

    Issue: Volume 2, Issue 3, May 2013
    Pages: 104-108
    Received: 24 May 2013
    Accepted:
    Published: 10 June 2013
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    Abstract: An adaptive finite element interactive program has been developed for fatigue crack propagation simulation under constant amplitude loading condition. The purpose of this model is on the determination of 2D crack paths and surfaces as well as on the evaluation of components Lifetimes as a part of the damage tolerant assessment. As part of a linear ... Show More
  • Analysis of Thermal Ageing Effect (Hold Time - Crystallinity Rate - Mechanical Property) on High Density Polyethylene (HDPE)

    Rabah Ferhoum, Meziane Aberkane, Mohand Ould ouali, Kamel Hachour

    Issue: Volume 2, Issue 3, May 2013
    Pages: 109-114
    Received: 01 June 2013
    Accepted:
    Published: 20 June 2013
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    Abstract: This work is devoted to the experimental study of thermal ageing effect on the large deformation stress–strain behaviour of PE100, tensions tests are conducted on this material samples submitted to a temperature of 90°C during different hold times. It is found that thermal ageing causes an increase of all properties measured, including crystallinit... Show More
  • The Improvement of Stainless Steel Properties after Pulse Plasma Processing

    Anuar Zhukeshov, Asylgul Gabdullina, Assem Amrenova, Svetlana Pak, Jangaly Moldabekov, Marjan Mukhamedryskyzy

    Issue: Volume 2, Issue 3, May 2013
    Pages: 115-119
    Received: 05 March 2013
    Accepted:
    Published: 20 June 2013
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    Abstract: The results of researches of stainless steel samples surface properties after interaction by pulsed plasma streams are presented. The modification carried out on CPU-30 pulsed plasma accelerator, operated on “continuously filling” mode, by single and multiple times. The structure of material was researched by SEM and XRD methods. The evolution of t... Show More
  • Exploring Voltage Output Using a Dye-Sensitized Solar Cell

    E. O. Osafile, O. D. Ojuh

    Issue: Volume 2, Issue 3, May 2013
    Pages: 120-123
    Received: 05 January 2013
    Accepted:
    Published: 30 June 2013
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    Abstract: A dye-sensitized solar cell consisting of two conducting glass electrodes in a sandwich arrangement was developed in the laboratory. Both electrodes were coated with tin dioxide after which the non conductive electrode was again coated with titanium dioxide. The titanium dioxide is designed to serve as an absorbent for the dye. The technology adopt... Show More