International Journal of Materials Science and Applications

Volume 2, Issue 6, November 2013

  • Development of Novel Polymer Phase Change Material for Heat Storage Application

    Amin Al Robaidi

    Issue: Volume 2, Issue 6, November 2013
    Pages: 168-172
    Received: 07 September 2013
    Accepted:
    Published: 20 October 2013
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    Abstract: Polymer Phase change material (PCM's) are materials used to store Energy for a broad range of Applications. Unlike conventional storage materials, PCM absorbs and release heat at a nearly constant temperature. They store 5–14 times more heat per unit volume than sensible storage materials. Increasing demand in solar engineering and spacecraft therm... Show More
  • Dielectric Relaxation, Ionic Conduction and Complex Impedance Studies on NaNo3 Fast Ion Conductor

    T. Vijay kumar, A. Sadananda Chary, Suresh Bhardwaj, A. M. Awasthi, S. Narender Reddy

    Issue: Volume 2, Issue 6, November 2013
    Pages: 173-178
    Received: 22 September 2013
    Accepted:
    Published: 30 October 2013
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    Abstract: AC conductivity, dielectric constant, loss and electric modulus of Sodium nitrate system have been studied in the frequency range from 1Hz to 10MHz and in the temperature range from 303 K to 563 K by employing impedance spectroscopy. The frequency dependent ac conductivity follows Jonscher’s universal power law. Dimensionless frequency exponent (n)... Show More
  • Optoelectronic Properties of New Synthesized Phtalocyanine

    Sarra TOUAITI, Amira HAJRI, Mourad Shédy KAHWECH, Bassem JAMOUSSI

    Issue: Volume 2, Issue 6, November 2013
    Pages: 179-184
    Received: 17 October 2013
    Accepted:
    Published: 20 November 2013
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    Abstract: One novel Zn-phthalocyanine bearing different substituent was synthesized. The resulting compounds were characterized by NMR and FTIR. The corresponding polymer was synthesized via cyclic voltametry. The optical properties of these π-conjugated systems were investigated by UV-Visible absorption and photoluminescence (PL) spectroscopy. The electroch... Show More
  • Syntheses, Characterization and Binding Strength of Geopolymers: A Review

    OLAWALE Margaret Damilola

    Issue: Volume 2, Issue 6, November 2013
    Pages: 185-193
    Received: 21 October 2013
    Accepted:
    Published: 20 November 2013
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    Abstract: There exist a large number of raw materials sources rich in alumina and silicon with the potential for procuring geopolymers. Among the materials predominate fly ash, calcined clays, puzzolans, kaolins, illite/smectite, metakaolins and slags. Geopolymers results from the reaction of aluminosilicate powder with an alkaline silicate solution. It has ... Show More
  • Chemical Baling of Oily Cast Iron Turnings and Use of Bales to Substitute Expensive and Scarce Scrapes

    Harast Aliaxandr Ivanavich

    Issue: Volume 2, Issue 6, November 2013
    Pages: 194-203
    Received: 14 November 2013
    Accepted:
    Published: 30 November 2013
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    Abstract: The results of the research are presented as the technology of smelting cast iron using iron-containing substances with organic pollutants as a charge material. Iron- and carbon- containing substances are introduced into the melt as stable components of bales which are not damaged during transportation. Bales are formed under low pressure from iron... Show More
  • Simultaneously Effect of Envinronment and Sustained Load on the Degradation of Aluminium Bonded Joint

    Anwar SNR, Crocombe AD

    Issue: Volume 2, Issue 6, November 2013
    Pages: 204-208
    Received: 19 September 2013
    Accepted:
    Published: 10 December 2013
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    Abstract: Bonded aluminium single lap joints have been exposed to a fully reversed ageing environment (immersion followed by withdrawal both at 50oC) in both loaded and unloaded conditions with time dependent. Monitoring of these specimens and testing at key points on this reversed ageing environment has led to the stress rupture and moisture dependence of j... Show More
  • Graphene in Edge-Carboxylated Graphite by Ball Milling and Analyses Using Finite Element Method

    J. H. Lee, C. M. Shim, B. S. Lee

    Issue: Volume 2, Issue 6, November 2013
    Pages: 209-220
    Received: 15 November 2013
    Accepted:
    Published: 10 December 2013
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    Abstract: Edge-carboxylated graphite (ECG) was produced by grinding pristine graphite in a planetary ball-mill machine. Transmission electron microscope was used to confirm the layers of graphene in ECG. The elemental analyses showed that the oxygen contents are different between ECG samples. The vibrational analysis of single- and five-layered graphene was ... Show More
  • Zn-Ni Electrodeposition for Enhanced Corrosion Performance

    Tolumoye Johnnie Tuaweri, Rhoda Gumus

    Issue: Volume 2, Issue 6, November 2013
    Pages: 221-227
    Received: 04 December 2013
    Accepted:
    Published: 30 December 2013
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    Abstract: Zinc-Nickel (Zn-Ni) electrodeposition has been carried out using direct current. Cathode current efficiency and deposit thickness were determined by weight measurement method. Influence of current density on the deposition process was also investigated. The morphologies of the deposits were studied using Scanning Electron Microscope and Field Emiss... Show More
  • Calculation of Phase Transitions of Uranium Dioxide Using Structure Factor in Molecular Dynamics

    Nagornov Yuri, Katz Andrey

    Issue: Volume 2, Issue 6, November 2013
    Pages: 228-232
    Received: 08 December 2013
    Accepted:
    Published: 30 December 2013
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    Abstract: We calculate phase transitions of uranium dioxide using structure factor in molecular dynamics. Our method is based on analysis of the rate of the structure factor change with the temperature. The temperatures of melting and transition to the superionic state for the uranium dioxide obtained by this method are 3100K and 2600K, respectively. Theses ... Show More