International Journal of Materials Science and Applications

Volume 4, Issue 2, March 2015

  • Carbon-Ionomer Nanocomposite Wetting Properties: The Role of Ionomer Composition and Surface Roughness

    Sonal Mazumder, Yanfang Fan, Chris J. Cornelius

    Issue: Volume 4, Issue 2, March 2015
    Pages: 69-76
    Received: 10 January 2015
    Accepted: 08 February 2015
    Published: 16 February 2015
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    Abstract: Surface hydrophobicity changes of a series of nanocomposite films were evaluated as a function of roughness and ionomer concentration. Nanocomposite surfaces were created by coating a smooth silicon wafer and micro textured surfaces based on two types of 3M micro-replicated Brightness Enhancement Films (BEF). Multiple nanocomposite surfaces were ev... Show More
  • The Life Predicting Calculations in Whole Process Realized by Calculable Materials Constants from short Crack to Long Crack Growth Process

    Yangui Yu

    Issue: Volume 4, Issue 2, March 2015
    Pages: 83-95
    Received: 26 January 2015
    Accepted: 14 February 2015
    Published: 25 February 2015
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    Abstract: To use the theoretical approach, to adopt the simple stress-, or strain-parameter method, by means of the conventional material constants, to establish some new calculation models in whole crack growth process for elastic-plastic steels, which are the equations of the driving forces and the life predictions from micro to macro crack; To provide yet... Show More
  • Ammonium Alunite and Basic Aluminum Sulfate: Effect of Precipitant Agent

    Adrián Zamorategui Molina, Julio del Ángel Soto, Merced Martínez Rosales, Rafael Romero Toledo

    Issue: Volume 4, Issue 2, March 2015
    Pages: 96-100
    Received: 07 February 2015
    Accepted: 24 February 2015
    Published: 09 March 2015
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    Abstract: Ammonium bisulfite as a precipitating agent was used to synthesize basic aluminum sulfate (BAS) by homogeneous precipitation. Aluminum sulfate in aqueous solution was used as the raw material. High concentration of the precipitant agent promotes the formation of ammonium alunite, which was confirmed by XRD, TG/DTG and FTIR analysis. The ammonium al... Show More
  • Effect of Dip Time on the Structural and Optical Properties of Chemically Deposited CdSe Thin Films

    R. A. Chikwenze, P. A. Nwofe, P. E. Agbo, S. N. Nwankwo, J. E. Ekpe, F. U. Nweke

    Issue: Volume 4, Issue 2, March 2015
    Pages: 101-106
    Received: 03 February 2015
    Accepted: 24 February 2015
    Published: 17 March 2015
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    Abstract: In this study, the effect of dip time on the structural and optical properties of cadmium selenide (CdSe) thin films grown by the chemical bath deposition method is reported. The films were grown with varying dip time in the range of 4 h to 12h, and the other deposition variables (substrate temperature, source to substrate distance, pH, and concent... Show More
  • Design of Long Persistent White Phosphorescence in a Composite Phosphor Via Energy Transfer Mechanism

    Hom Nath Luitel, Rumi Chand, Toshio Torikai, Mitsunori Yada, Takanori Watari

    Issue: Volume 4, Issue 2, March 2015
    Pages: 107-114
    Received: 19 February 2015
    Accepted: 04 March 2015
    Published: 21 March 2015
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    Abstract: A high quality composite phosphor powder of warm to cool white emission and long afterglow phosphorescence was reported by the process of energy transfer in a composite phosphor. The composite phosphor particles include at least two types of phosphor particles viz. a blue white persistent component and yellow fluorescent component. The blue white e... Show More
  • Design of Bentonite Acid Modified Electrodes in Cyanide Biosensors

    Catherina Bijang, Abd. Wahid Wahab, Maming, Ahyar Ahmad, Paulina Taba

    Issue: Volume 4, Issue 2, March 2015
    Pages: 115-119
    Received: 11 February 2015
    Accepted: 13 March 2015
    Published: 24 March 2015
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    Abstract: A research has been done on the influence of sulfuric acid activation on the performance ofbentonite as a cyanide biosensor. The concentration of sulfuric acid used was 0.5; 1; 1.5and 2 M. Activation with 2 M sulfuric acid resulted in an increase in surface area and basal spacing. The membrane biosensor made from 2M acid activated bentonite had bet... Show More
  • Studies on the Mixed Ligand Complexes of Co(II), Ni(II) and Cu(II) with Phthalimide and Heterocyclic Amines

    Md. Kudrat-E-Zahan, Md. Masuqul Haque, Lokonuzzaman Ahmmed, M. Sher Ali, Md. Saidul Islam

    Issue: Volume 4, Issue 2, March 2015
    Pages: 120-123
    Received: 18 March 2015
    Accepted: 24 March 2015
    Published: 09 April 2015
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    Abstract: This paper describes the synthesis and characterization of mixed ligand complexes of Co(II), Ni(II) and Cu(II) with, Phthalimide and heterocyclic amines. The Elemental analysis, IR, UV-vis and 1H-NMR spectral analysis, colours, molar conductances and magnetic properties suggested that the complexes have formulation as [M(Ph-imide)2(L)2~4], Where, M... Show More
  • The Hydrated and Hydrolyzed States of Exchangeable Cations in the Montmorillonite and Their Quantitative Assessment

    Alexei Maftuleac

    Issue: Volume 4, Issue 2, March 2015
    Pages: 124-129
    Received: 18 March 2015
    Accepted: 31 March 2015
    Published: 09 April 2015
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    Abstract: In the paper is submitted opinion according to which, a part of the hydrated exchangeable cations in the montmorillonite is hydrolyzed. A new experimental method has been proposed, which allows to estimate the hydrated/hydrolyzed state of these cations. The method consists in the use of thermal analysis data of mineral, and is particularly effectiv... Show More
  • Influence of Nanosize Silica Particles on the Rheological Behaviour of Lyotropic Cubic Phase of Glucopone (APG) Surfactant

    Mohamed A. Siddig, Abubaker A. Siddig, Lal S. Jan, Abdelrahman A. Elbadawi, Shahidan Radiman

    Issue: Volume 4, Issue 2, March 2015
    Pages: 130-137
    Received: 21 March 2015
    Accepted: 06 April 2015
    Published: 17 April 2015
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    Abstract: The effect of nanosize silica particle on the stability, structures and rheological behaviours of cubic liquid crystalline phases of Glucopone/water/heptane system were investigated. Small-angle X-ray scattering (SAXS) and polarizing microscope were used for phase identification and structure characterization. SAXS scattering profile was characteri... Show More
  • Effect of pH on the Optical Properties of Cadmium Sulphide (CdS) Thin Film Deposited Using Chemical Bath Method

    Rita Anionye Daniel-Umeri

    Issue: Volume 4, Issue 2, March 2015
    Pages: 138-142
    Received: 21 March 2015
    Accepted: 09 April 2015
    Published: 18 April 2015
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    Abstract: Cadmium Sulphide (CdS) thin films have been deposited on glass substrates at room temperature by using Chemical bath deposition method. The bath composition included cadmium chloride hemidihydrate [CdCl2.2½H2O], thiourea [SC (NH2)2] and Ammonia (NH3) solution. The effects of the pH value on the optical properties of the films have been investigated... Show More