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Mohamad Masri
Faculty of Bioengineering and Technology, Universiti Malaysia Kelantan, Jeli Campus, Jeli 17600, Kelantan, Malaysia

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Journal article
Published: 19 April 2021 in Crystals
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This study aims to optimize the composition (body formulation) and firing temperature of sustainable ceramic clay-based ceramics incorporated with electric arc furnace (EAF) steel slag waste using general full factorial design (GFFD). The optimization is necessary to minimize drawbacks of high iron oxide’s fluxing agent (originated from electric arc furnace, EAF steel slag waste), which led to severe surface defects and high closed porosity issue of the ceramics. Statistical analysis of GFFD including model adequacy checking, analysis of variance (ANOVA), interaction plots, regression model, contour plot and response optimizer were conducted in the study. The responses (final properties of ceramics) investigated were firing shrinkage, water absorption, apparent porosity, bulk density and modulus of rupture (MOR). Meanwhile, the factors employed in experimental parameters were weight percentage (wt.%) of EAF slag added and firing temperature. Upon statistical analysis, GFFD has deduced that wt.% amount of EAF slag added and firing temperatures are proven to significantly influence the final properties of the clay-based ceramic incorporated with EAF slag. The results of conducted statistical analysis were also highly significant and proven valid for the ceramics. Optimized properties (maximum MOR, minimum water absorption and apparent porosity) of the ceramic were attained at 50 wt.% of EAF slag added and firing temperature of 1180 °C.

ACS Style

Pao Teo; Siti Zakaria; Nurulakmal Mohd Sharif; Anasyida Abu Seman; Mustaffa Taib; Julie Mohamed; Mahani Yusoff; Abdul Yusoff; Mardawani Mohamad; Arlina Ali; Mohamad Masri. Application of General Full Factorial Statistical Experimental Design’s Approach for the Development of Sustainable Clay-Based Ceramics Incorporated with Malaysia’s Electric Arc Furnace Steel Slag Waste. Crystals 2021, 11, 442 .

AMA Style

Pao Teo, Siti Zakaria, Nurulakmal Mohd Sharif, Anasyida Abu Seman, Mustaffa Taib, Julie Mohamed, Mahani Yusoff, Abdul Yusoff, Mardawani Mohamad, Arlina Ali, Mohamad Masri. Application of General Full Factorial Statistical Experimental Design’s Approach for the Development of Sustainable Clay-Based Ceramics Incorporated with Malaysia’s Electric Arc Furnace Steel Slag Waste. Crystals. 2021; 11 (4):442.

Chicago/Turabian Style

Pao Teo; Siti Zakaria; Nurulakmal Mohd Sharif; Anasyida Abu Seman; Mustaffa Taib; Julie Mohamed; Mahani Yusoff; Abdul Yusoff; Mardawani Mohamad; Arlina Ali; Mohamad Masri. 2021. "Application of General Full Factorial Statistical Experimental Design’s Approach for the Development of Sustainable Clay-Based Ceramics Incorporated with Malaysia’s Electric Arc Furnace Steel Slag Waste." Crystals 11, no. 4: 442.

Conference paper
Published: 29 December 2020 in IOP Conference Series: Earth and Environmental Science
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Sn-0.7Cu lead-free solder is an alternative solder material that suitable to replace Sn-Pb solder in electronic manufacturing. However, it has a weakness of high melting temperature and lower mechanical strength. In this study, the change in microstructure, elements, the structural and melting point of Sn-0.7Cu after the addition of different compositions of Zn element was discussed. The result shows that after adding a small amount of Zn, a refinement microstructure of Sn-0.7Cu-xZn solder alloy was obtained, and the melting point of the solder decreased from 227.7 °C to 225.7 °C. Besides, the formation new phase of was investigated by scanning electron microscope (SEM) followed by energy-dispersive x-ray spectroscopy (EDX) and x-ray diffraction (XRD). Besides, the behaviour of Sn-0.7Cu-xZn solder alloy can be further studied via open circuit potential (OCP) to determine the corrosion potential.

ACS Style

Fatin Sufina Mohd Tarmizi; Mohamad Najmi Masri; Muhammad Firdau Mohd Nazeri; Ahmad Azmin Mohamad. Effect Additions Zn on Sn-0.7Cu Lead-Free Solder: A Short Brief. IOP Conference Series: Earth and Environmental Science 2020, 596, 012038 .

AMA Style

Fatin Sufina Mohd Tarmizi, Mohamad Najmi Masri, Muhammad Firdau Mohd Nazeri, Ahmad Azmin Mohamad. Effect Additions Zn on Sn-0.7Cu Lead-Free Solder: A Short Brief. IOP Conference Series: Earth and Environmental Science. 2020; 596 (1):012038.

Chicago/Turabian Style

Fatin Sufina Mohd Tarmizi; Mohamad Najmi Masri; Muhammad Firdau Mohd Nazeri; Ahmad Azmin Mohamad. 2020. "Effect Additions Zn on Sn-0.7Cu Lead-Free Solder: A Short Brief." IOP Conference Series: Earth and Environmental Science 596, no. 1: 012038.

Conference paper
Published: 29 December 2020 in IOP Conference Series: Earth and Environmental Science
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In this study, cassava starch was prepared as conductive biodegradable material on zinc anode in zinc-air fuel cell system by using electrochemistry method. Successful formation of cassava layer on zinc anode was determined by its conductivity values by using four-point probe instrument and the enhancement of conductivity of anode after the deposition of cassava starch was proven. The optimization of conductivity study was further carried out in different concentrations of cassava. It was shown the increment about 30% from 0.079 to 0.105 Scm−1 of conductivity values from original conductivity of pure zinc. Moreover, SEM analysis exhibits the morphology of cassava coated on zinc plate with distinct particle structure was observed, proving the successful formation of cassava layer via electrochemical method. Hence, the discharge profile analysis highlighted the composition of C3 of CS performed best performance in ZAFC system.

ACS Style

Wan Marinah Izzati Wan Ismail; Mohd Najmi Masri; Hasyiya Karimah Adli. Study of Cassava Starch Layer on Zinc Anode by Electrochemistry Method for Zinc-air Fuel Cell System. IOP Conference Series: Earth and Environmental Science 2020, 596, 012004 .

AMA Style

Wan Marinah Izzati Wan Ismail, Mohd Najmi Masri, Hasyiya Karimah Adli. Study of Cassava Starch Layer on Zinc Anode by Electrochemistry Method for Zinc-air Fuel Cell System. IOP Conference Series: Earth and Environmental Science. 2020; 596 (1):012004.

Chicago/Turabian Style

Wan Marinah Izzati Wan Ismail; Mohd Najmi Masri; Hasyiya Karimah Adli. 2020. "Study of Cassava Starch Layer on Zinc Anode by Electrochemistry Method for Zinc-air Fuel Cell System." IOP Conference Series: Earth and Environmental Science 596, no. 1: 012004.

Review
Published: 09 October 2020 in Metals
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Steel slag is one of the most common waste products from the steelmaking industry. Conventional methods of slag disposal can cause negative impacts on humans and the environment. In this paper, the process of steel and steel slag production, physical and chemical properties, and potential options of slag recycling were reviewed. Since steel is mainly produced through an electric arc furnace (EAF) in Malaysia, most of the recycling options reviewed in this paper focused on EAF slag and the strengths and weaknesses of each recycle option were outlined. Based on the reports from previous studies, it was found that only a portion of EAF slag is recycled into more straightforward, but lower added value applications such as aggregates for the construction industry and filter/absorber for wastewater treatments. On the other hand, higher added value recycling options for EAF slag that are more complicated such as incorporated as raw material for Portland cement and ceramic building materials remain at the laboratory testing stage. The main hurdle preventing EAF slag from being incorporated as a raw material for higher added value industrial applications is its inconsistent chemical composition. The chemical composition of EAF slag can vary based on the scrap metal used for steel production. For this, mineral separation techniques can be introduced to classify the EAF slag base on its physical and chemical compositions. We concluded that future research on recycling EAF slag should focus on separation techniques that diversify the recycling options for EAF slag, thereby increasing the waste product’s recycling rate.

ACS Style

Pao Ter Teo; Siti Koriah Zakaria; Siti Zuliana Salleh; Mustaffa Ali Azhar Taib; Nurulakmal Mohd Sharif; Anasyida Abu Seman; Julie Juliewatty Mohamed; Mahani Yusoff; Abdul Hafidz Yusoff; Mardawani Mohamad; Mohamad Najmi Masri; Sarizam Mamat. Assessment of Electric Arc Furnace (EAF) Steel Slag Waste’s Recycling Options into Value Added Green Products: A Review. Metals 2020, 10, 1347 .

AMA Style

Pao Ter Teo, Siti Koriah Zakaria, Siti Zuliana Salleh, Mustaffa Ali Azhar Taib, Nurulakmal Mohd Sharif, Anasyida Abu Seman, Julie Juliewatty Mohamed, Mahani Yusoff, Abdul Hafidz Yusoff, Mardawani Mohamad, Mohamad Najmi Masri, Sarizam Mamat. Assessment of Electric Arc Furnace (EAF) Steel Slag Waste’s Recycling Options into Value Added Green Products: A Review. Metals. 2020; 10 (10):1347.

Chicago/Turabian Style

Pao Ter Teo; Siti Koriah Zakaria; Siti Zuliana Salleh; Mustaffa Ali Azhar Taib; Nurulakmal Mohd Sharif; Anasyida Abu Seman; Julie Juliewatty Mohamed; Mahani Yusoff; Abdul Hafidz Yusoff; Mardawani Mohamad; Mohamad Najmi Masri; Sarizam Mamat. 2020. "Assessment of Electric Arc Furnace (EAF) Steel Slag Waste’s Recycling Options into Value Added Green Products: A Review." Metals 10, no. 10: 1347.

Review
Published: 18 February 2019 in Soldering & Surface Mount Technology
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PurposeThe purpose of this paper is to review and examine three of the most common corrosion characterization techniques specifically on Sn-Zn solders. The discussion will highlight the configurations and recent developments on each of the compiled characterization techniques of potentiodynamic polarization, potentiostatic polarization and electrochemical impedance spectroscopy (EIS).Design/methodology/approachThe approach will incorporate a literature review of previous works related to the experimental setups and common parameters.FindingsThe potentiostatic polarization, potentiodynamic polarization and EIS were found to provide crucial and vital information on the corrosion properties of Sn-Zn solders. Accordingly, this solder relies heavily on the amount of Zn available because of the inability to produce the intermetallic compound in between the elements. Further, the excellent mechanical properties and low melting temperature of the Sn-Zn solder is undeniable, however, the limitations regarding corrosion resistance present opportunities in furthering research in this field to identify improvements. This is to ensure that the corrosion performance can be aligned with the outstanding mechanical properties. The review also identified and summarized the advantages, recent trends and important findings in this field.Originality/valueThe unique challenges and future research directions regarding corrosion measurement in Sn-Zn solders were shown to highlight the rarely discussed risks and problems in the reliability of lead-free soldering. Many prior reviews have been undertaken of the Sn-Zn system, but limited studies have investigated the corrosive properties. Therefore, this review focuses on the corrosive characterizations of the Sn-Zn alloy system.

ACS Style

Muhammad Firdaus Mohd Nazeri; Muhamad Zamri Yahaya; Ali Gursel; Fakhrozi CheAni; Mohamad Najmi Masri; Ahmad Azmin Mohamad. Corrosion characterization of Sn-Zn solder: a review. Soldering & Surface Mount Technology 2019, 31, 52 -67.

AMA Style

Muhammad Firdaus Mohd Nazeri, Muhamad Zamri Yahaya, Ali Gursel, Fakhrozi CheAni, Mohamad Najmi Masri, Ahmad Azmin Mohamad. Corrosion characterization of Sn-Zn solder: a review. Soldering & Surface Mount Technology. 2019; 31 (1):52-67.

Chicago/Turabian Style

Muhammad Firdaus Mohd Nazeri; Muhamad Zamri Yahaya; Ali Gursel; Fakhrozi CheAni; Mohamad Najmi Masri; Ahmad Azmin Mohamad. 2019. "Corrosion characterization of Sn-Zn solder: a review." Soldering & Surface Mount Technology 31, no. 1: 52-67.

Conference paper
Published: 06 February 2019 in AIP Conference Proceedings
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This study was conducted to the physical and mechanical properties of particleboard sample manufactured from oil palm trunk (Elaesis quineensis) using glutardialadehyde as replacement for urea formaldehyde resin. Density that was used is 0.6 g/cm3, 0.7 g/cm3 and 0.8 g/cm3 to compare the durability of the each particleboard with the dimension of 21 cm × 21 cm × 0.5 cm. Binderless particleboards were made by using hot pressing system at temperature 150 °C for 10 minutes. The method used is based on previous studies and according to Japanese Industrial Standard, JIS A-5908 2003. The physical and mechanical properties of the study consist of density test, moisture content test, water absorption and thickness swelling test, and also bending test. From this study it was found that 0.7 g/cm3 density level particleboard was the optimum density level that gives the highest MOR. The moisture content also shows lowest reading in density level 0.7 g/cm3. The result for all the water absorption test and thickness swelling test were at density level 0.7 g/cm3 were the optimum density level.

ACS Style

Sri Sathiswh Sekaran; Mohd Hazim Mohamad Amini; Nurul Syuhada Sulaiman; Mohamad Bashree Abu Bakar; Mohamad Najmi Masri; Muhammad Azwadi Sulaiman. Characterization of particleboard made using glutardialdehyde-treated oil palm trunk particles. AIP Conference Proceedings 2019, 2068, 020032 .

AMA Style

Sri Sathiswh Sekaran, Mohd Hazim Mohamad Amini, Nurul Syuhada Sulaiman, Mohamad Bashree Abu Bakar, Mohamad Najmi Masri, Muhammad Azwadi Sulaiman. Characterization of particleboard made using glutardialdehyde-treated oil palm trunk particles. AIP Conference Proceedings. 2019; 2068 (1):020032.

Chicago/Turabian Style

Sri Sathiswh Sekaran; Mohd Hazim Mohamad Amini; Nurul Syuhada Sulaiman; Mohamad Bashree Abu Bakar; Mohamad Najmi Masri; Muhammad Azwadi Sulaiman. 2019. "Characterization of particleboard made using glutardialdehyde-treated oil palm trunk particles." AIP Conference Proceedings 2068, no. 1: 020032.

Journal article
Published: 01 July 2015 in Journal of King Saud University - Engineering Sciences
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Tapioca was used as a binder for porous Zn anodes in an electrochemical zinc-air (Zn-air) battery system. The tapioca binder concentrations varied to find the optimum composition. The effect of the discharge rate at 100mA on the constant current, current–potential and current density–power density of the Zn-air battery was measured and analyzed. At concentrations of 60–80mgcm−3, the tapioca binder exhibited the optimum discharge capability, with a specific capacity of approximately 500mAhg−1 and a power density of 17mWcm−2. A morphological analysis proved that at this concentration, the binder is able to provide excellent binding between the Zn powders. Moreover, the structure of Zn as the active material was not affected by the addition of tapioca as the binder, as shown by the X-ray diffraction analysis. Furthermore, the conversion of Zn into ZnO represents the full utilization of the active material, which is a good indication that tapioca can be used as the binder

ACS Style

Mohamad Najmi Masri; Muhammad Firdaus Mohd Nazeri; Chai Yan Ng; Ahmad Azmin Mohamad. Tapioca binder for porous zinc anodes electrode in zinc–air batteries. Journal of King Saud University - Engineering Sciences 2015, 27, 217 -224.

AMA Style

Mohamad Najmi Masri, Muhammad Firdaus Mohd Nazeri, Chai Yan Ng, Ahmad Azmin Mohamad. Tapioca binder for porous zinc anodes electrode in zinc–air batteries. Journal of King Saud University - Engineering Sciences. 2015; 27 (2):217-224.

Chicago/Turabian Style

Mohamad Najmi Masri; Muhammad Firdaus Mohd Nazeri; Chai Yan Ng; Ahmad Azmin Mohamad. 2015. "Tapioca binder for porous zinc anodes electrode in zinc–air batteries." Journal of King Saud University - Engineering Sciences 27, no. 2: 217-224.

Journal article
Published: 29 January 2013 in Journal of The Electrochemical Society
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Zinc-air batteries were fabricated using porous zinc anodes with various concentrations of Super P carbon black additive. The introduction of Super P significantly improved the electrochemical performance of the batteries. The specific discharge capacity and power density of the Zn anode with 2 wt% Super P anode was 776 mA h g−1 and 20 mW cm−2, respectively. The batteries also exhibited good durability and stability at an open circuit voltage maintained at approximately 1.4 V. The bridging between Zn powders by Super P may explain the improved electrochemical performance of the batteries. Morphological images and structural properties were also analyzed to support these observations.

ACS Style

Mohamad Najmi Masri; Ahmad Azmin Mohamad. Effect of Adding Carbon Black to a Porous Zinc Anode in a Zinc-Air Battery. Journal of The Electrochemical Society 2013, 160, A715 -A721.

AMA Style

Mohamad Najmi Masri, Ahmad Azmin Mohamad. Effect of Adding Carbon Black to a Porous Zinc Anode in a Zinc-Air Battery. Journal of The Electrochemical Society. 2013; 160 (4):A715-A721.

Chicago/Turabian Style

Mohamad Najmi Masri; Ahmad Azmin Mohamad. 2013. "Effect of Adding Carbon Black to a Porous Zinc Anode in a Zinc-Air Battery." Journal of The Electrochemical Society 160, no. 4: A715-A721.