International Journal of Materials Science and Applications

Volume 4, Issue 2, March 2015

  • Melting of a New Carbon –Free Waxed Sponge Iron in Electric Arc Furnace (EAF) for Steelmaking

    Jaleel Kareem Ahmad

    Issue: Volume 4, Issue 2-1, March 2015
    Pages: 1-6
    Received: 19 October 2014
    Accepted: 2 November 2014
    Published: 3 November 2014
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    This article belongs to the Special Issue Steel and Direct Reduced Iron (sponge Iron) Industry
    Abstract: No problem with the melting of new carbon – free waxed coated sponge iron (Jaleel's process) for producing different steel alloys. Coated wax: (1) acts as inhibitor for inhibition of reoxidation of sponge iron. (2) provide the required carbon for reduction iron oxide as well as a balance for the chemical composition of steel. (3) provide part of th... Show More
  • Inhibition of Reoxidation of Direct Reduced Iron ( DRI) or Sponge Iron

    Jaleel Kareem Ahmad

    Issue: Volume 4, Issue 2-1, March 2015
    Pages: 7-10
    Received: 19 October 2014
    Accepted: 4 November 2014
    Published: 5 November 2014
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    This article belongs to the Special Issue Steel and Direct Reduced Iron (sponge Iron) Industry
    Abstract: A method of inhibiting degeneration of direct reduced iron by immersing the iron ore, after it has been reduced, in molten wax for a period of time sufficient for the wax to cover completely the surface of the iron and to enter the pores in the surface of the iron. The iron is preferably in the form of pellets which are conveyed in mesh baskets whi... Show More
  • Carburizing of Steel

    Jaleel Kareem Ahmad

    Issue: Volume 4, Issue 2-1, March 2015
    Pages: 11-14
    Received: 19 October 2014
    Accepted: 23 October 2014
    Published: 5 November 2014
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    This article belongs to the Special Issue Steel and Direct Reduced Iron (sponge Iron) Industry
    Abstract: Paraffin wax (sulfur and phosphorous free)used as carburizer material for low carbon steels(Steel20, Steel3, and Steel 20x) instead of kerosene. Results show 1) Carburized layer by wax is more depth than in case of kerosene for all the three types of steel, e.g. for steel 20x the depths are 1.336 0.001 and 0.98 0.15 mm respectively 2) More homogeni... Show More
  • Effect of Nano Silica on the Mechanical Properties of Styrene-Butadiene Rubber (SBR) Composite

    Jaleel Kareem Ahmed, Mohammed H. Al-maamori, Hajir Mohammed Ali

    Issue: Volume 4, Issue 2-1, March 2015
    Pages: 15-20
    Received: 16 November 2014
    Accepted: 19 November 2014
    Published: 22 November 2014
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    This article belongs to the Special Issue Steel and Direct Reduced Iron (sponge Iron) Industry
    Abstract: The aim of this research is to study the effect of nano silica which use as a filler with loading level (0.1, 0.3, 0.5, 1, 3, 5, 10, 20, 30, 40 pphr) on mechanical properties of SBR such as Tensile strength, elastic modulus, hardness, abrasion, fatigue and tear resistance. The results show that on addition of small quantities of nano silica an incr... Show More
  • Effect of Chlorophyll and Anthocyanin on the Secondary Bonds of Poly Vinyl Chloride (PVC)

    Jaleel Kareem Ahmed, Zuhair J. Abdul Amer, Maha Jasim Mohammed Al-Bahate

    Issue: Volume 4, Issue 2-1, March 2015
    Pages: 21-29
    Received: 16 November 2014
    Accepted: 19 November 2014
    Published: 22 November 2014
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    This article belongs to the Special Issue Steel and Direct Reduced Iron (sponge Iron) Industry
    Abstract: This paper deals with the effect of natural pigments (chlorophyll and anthocyanin) on the secondary bonds in (poly vinyl chloride PVC), which play an important role in the physical and chemical behavior of it. Natural pigments extracted from plants by a simple method and blended with PVC powder in different ratio of natural pigments, and the proper... Show More
  • Viscoelastic and Rheological Properties of Carboxymethyl Cellulose /Starch/Graphite Oxide as Superabsorbent Hydrogel Nano Composites (SHNCs)

    Auda Jabbar Braihi, Sihama Issa Salih, Fadhel Abbas Hashem

    Issue: Volume 4, Issue 2-1, March 2015
    Pages: 30-36
    Received: 17 November 2014
    Accepted: 4 December 2014
    Published: 27 December 2014
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    This article belongs to the Special Issue Steel and Direct Reduced Iron (sponge Iron) Industry
    Abstract: Uncross-linked carboxymethyl cellulose (CMC) / starch blend used to prepare two hydrogels; the first is cross-linked CMC / starch with aluminum sulfate octadecahydrate cross-linker and the second is SHNCs manufactured from incorporation of 0.3wt% nano graphite oxide (GO) in the above cross-linked blend. Viscoelastic and rheological properties of th... Show More
  • Using Chlorophyll as Gamma Absorber

    Jaleel Kareem Ahmed

    Issue: Volume 4, Issue 2-1, March 2015
    Pages: 37-42
    Received: 7 January 2015
    Accepted: 8 January 2015
    Published: 27 January 2015
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    This article belongs to the Special Issue Steel and Direct Reduced Iron (sponge Iron) Industry
    Abstract: Chlorophyll extracted from celery using 50% v/v water – methyl alcohol as a solvent. By this method the concentration of chlorophyll was 22.6% with yellowish-green color. This solution showed strongly absorption at 400 – 210 nm and maximum was at the end of ultra-violet region. This absorption appeared in water, methyl alcohol, and acetone, but str... Show More
  • Effect of Novolac on Mechanical and Physical Properties of Nitrile Rubber (NBR)

    Mohammed H. Al-Maamori, Ali Abdul-Amir Al-Zubaidi, Ahmed Abdulameer Subeh

    Issue: Volume 4, Issue 2-1, March 2015
    Pages: 43-47
    Received: 13 January 2015
    Accepted: 17 January 2015
    Published: 1 February 2015
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    This article belongs to the Special Issue Steel and Direct Reduced Iron (sponge Iron) Industry
    Abstract: This research aims to study the effect of addition novolac material (phenol formaldehyde resin, polar) on the mechanical and physical properties of nitrile rubber (NBR) and the proportion of addition novolac material is(0,10,20,30,40,50 pphr) to a sample of nitrile rubber containing 40 part per hundred rubber (pphr) carbon black as a proportion sta... Show More