International Journal of Materials Science and Applications

Volume 5, Issue 6, November 2016

  • Study on Precision Polishing Technology Combining Electrophoresis and Magnetic Finishing

    Lieh-Dai Yang, Kun-Ling Wu, Chin-Chang Yeh, Hsin-Min Lee

    Issue: Volume 5, Issue 6, November 2016
    Pages: 235-240
    Received: 16 October 2016
    Published: 17 October 2016
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    Abstract: The aim of this paper is to improve the quality of surface roughness of precision molds, which is difficult to control in the traditional polishing technology, and to provide a kind of equipment which is simple and easy to operate in orderto obtain a high precision in surface finishing and polishing. The combination of magnetic force polishing and ... Show More
  • Optimal Machining Parameters of EDM in Gas Based on Response Surface Methodology

    Yan-Cherng Lin, Han-Ming Chow, Yuan-Feng Chen, Jia-Feng Liu

    Issue: Volume 5, Issue 6, November 2016
    Pages: 241-247
    Received: 18 October 2016
    Published: 19 October 2016
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    Abstract: This paper aims to establish an effective mathematical model with relation to electrical discharge machining (EDM) in gas based on response surface methodology (RSM). Moreover, the optimal combination levels of machining parameters for material removal rate (MRR) and surface roughness (SR) were also explored. The experimental tasks were implemented... Show More
  • A Study on the Effects of Material to Liquor Ratio on the Colorfastness of Synolon Yellow EXW Fluorescent Disperse Dye

    Azizul Islam, Rashaduzzaman, Mahbubur Rahman, Jagannath Biswas, Elias Khalil

    Issue: Volume 5, Issue 6, November 2016
    Pages: 248-253
    Received: 11 September 2016
    Accepted: 21 September 2016
    Published: 20 October 2016
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    Abstract: This study highlighted the influence of change in material to liquor ratio on the colorfastness properties of Synolon Yellow EXW fluorescent disperse dye applied on knitted polyester fabric in exhaust dyeing method. Three different liquor ratios (1:6, 1:8 and 1:10) were used and dye shade percentages were 0.5%, 1.0% and 1.5%. The results showed tha... Show More
  • Effects of Water Hardness on Dyeing of Cotton Fabrics with Different Types of Reactive Dyes and Shade Percentages

    Mahbubur Rahman, Azizul Islam, Jagannath Biswas

    Issue: Volume 5, Issue 6, November 2016
    Pages: 254-260
    Received: 11 September 2016
    Accepted: 21 September 2016
    Published: 27 October 2016
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    Abstract: This research was investigated the influence of water hardness on dyeing of cotton fabric with three types of reactive dyes (Synozol, Ramazol and Setazol). The effects of various fastness (color fastness to wash, abrasion test, Rubbing test and Perspiration test) properties of dyes were also studied and reported in this paper in details. Single col... Show More
  • Influence of Thiourea Concentration on Some Physical Properties of Chemically Sprayed Cu2ZnSnS4 Thin Films

    Nabeel A. Bakr, Ziad T. Khodair, Hussein I. Mahdi

    Issue: Volume 5, Issue 6, November 2016
    Pages: 261-270
    Received: 28 September 2016
    Accepted: 7 October 2016
    Published: 1 November 2016
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    Abstract: In this work Cu2ZnSnS4 (CZTS) films were deposited by using chemical spray pyrolysis (CSP) technique at substrate temperature of (400 ± 10) °C and thickness of about (300 ± 10) nm at different Thiourea Concentrations of (0.14, 0.16, 0.18, 0.20, 0.22 and 0.24) M. Copper chloride (CuCl), zinc chloride (ZnCl2), tin chloride (SnCl4.5H2O) and thiourea (... Show More
  • Effects of Pulverized Fuel Ash and Condensed Silica Fume on Heat Generation of Curing Concrete

    J. J. Chen, H. N. Chen, L. G. Li

    Issue: Volume 5, Issue 6, November 2016
    Pages: 271-276
    Received: 4 November 2016
    Published: 5 November 2016
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    Abstract: The heat generated during the curing period of concrete may results in early thermal cracking. To avoid or at least alleviate this early thermal cracking problem, replacing part of cement by cementitious materials should be an effective method. Herein, it is proposed to add PFA or CSF as cement replacement to lower the cement content and heat gener... Show More
  • Hypereutectic Al-Si Alloy with Completely Nodular Eutectic Silicon: Microstructure and Process

    Ruyao Wang, Weihua Lu

    Issue: Volume 5, Issue 6, November 2016
    Pages: 277-283
    Received: 27 September 2016
    Accepted: 11 October 2016
    Published: 9 November 2016
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    Abstract: The achievement of hypereutectic Al-Si alloys with completely nodular eutectic Si has been studied. The procedure contained two steps: firstly, achieving hypereutectic direct electrolytic Al-Si alloys (HDEASA) with completely eutectic structure and secondly, spheroidizing eutectic Si upon soaking. HDEASAs with Si level in the range from 13.2 wt% to... Show More
  • Photoluminescence and Energy Transfer Between Sm 3+ Ions in LaF3 Nanocrystals Prepared by Hydrothermal Method

    Hoang Manh Ha, Tran Thi Quynh Hoa, Le Van Vu, Nguyen Ngoc Long

    Issue: Volume 5, Issue 6, November 2016
    Pages: 284-289
    Received: 10 October 2016
    Accepted: 19 October 2016
    Published: 9 November 2016
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    Abstract: The aim of this research is to study photoluminescent properties and particularly energy transfer between Sm3+ ions in LaF3 nanocrystals because the energy transfer process has a significant effect on the luminescence efficiency and lifetime. Sm3+-doped LaF3 nanocrystals with 0.1, 0.2, 0.3, 1.0, 2.0, 3.0, 4.0 and 5.0 mol% Sm3+ have been prepared by... Show More
  • Processing Characteristics Exploration of Metal Based Diamond Wheel of WEDM Dressing and Truing

    Han-Ming Chow, Lieh-Dai Yang, Yan-Cherng Lin, Jung-Chou Hung, Yao-Zhong Gu

    Issue: Volume 5, Issue 6, November 2016
    Pages: 290-296
    Received: 9 November 2016
    Published: 10 November 2016
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    Abstract: This study aims to conduct experiments to explore metal based diamond wheel dressing and truing using developed wire electrical discharge (WEDM). The experimental outputs were analyzed to evaluate the effects of machining parameters on machining removal rate (MRR) and abrasive protrusion during dressing and truing caused by WEDM. During experiments... Show More
  • Improvement of Chemical and Thermal Properties of Polyethylene Terephthalate (PET) by Using Multi-walled Carbon Nanotubes (MWCNTs)

    Eman Mohammed Khalaf, Sameer Ahmed Awad

    Issue: Volume 5, Issue 6, November 2016
    Pages: 297-301
    Received: 15 October 2016
    Accepted: 14 November 2016
    Published: 17 December 2016
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    Abstract: This work aims to investigate the improvements of thermal and chemical properties of polyethylene terephthalate (PET) by using Multi-walled carbon nanotubes (MWCNTs). MWCNT were used as a reinforcement in polyethylene terephthalate with different weight percentages (0.1, 0.5, and 1) % respectively. The direct mixing process was used to prepare (pol... Show More
  • Comprehensive Characterization of Lignocellulosic Fruit Fibers Reinforced Hybrid Polyester Composites

    B. NagarajaGanesh, R. Muralikannan

    Issue: Volume 5, Issue 6, November 2016
    Pages: 302-307
    Received: 7 October 2016
    Accepted: 3 November 2016
    Published: 18 December 2016
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    Abstract: This work is focused to fabricate and characterize hybrid polyester composites containing equal weight percentages of lignocellulosic fruit fibers namely Cocos nucifera and Luffa cylindrica. Samples with four different compositions (10%, 20%, 30%, and 40%) containing random fiber orientation are fabricated using handlayup technique and their effect... Show More