Muhammad Faheem Mohd. Tahir
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Preferred name
Muhammad Faheem Mohd. Tahir
Official Name
Muhammad Faheem, Mohd. Tahir
Alternative Name
Muhammad Faheem, T. M.
Tahir, Faheem
Faheem, Mohd Tahir Muhammad
Tahir, Muhammad Faheem
Tahir, Muhammad Faheem Mohd
Tahir, M. F.M.
Main Affiliation
Scopus Author ID
57211574727
Researcher ID
AAT-9691-2021
DWS-8186-2022
IHM-2046-2023

Research Output

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  • Publication
    Study on the effects of anodizing voltage to the AAO thin film dimensional properties synthesized by single step anodization method
    ( 2021-05-03)
    Shahidah Arina Shamsuddin
    ;
    Mohd Nazree Derman
    ;
    Uda Hashim
    ;
    Muhammad Faheem Mohd. Tahir
    Anodic aluminium oxide (AAO) thin film electrodes were synthesized by using a single step anodizing method in 15 °C of 0.3 M oxalic acid at five different anodizing voltage ranging from 20 V to 60 V, respectively. The effect of anodizing voltage to the AAO dimensional properties were about to be investigated. Morphological observations were all done by FESEM where the measurements and calculation were made by using ImageJ and formulas. To ensure that the pore sizes were totally depended on the anodizing voltage, etching process were done at constant duration for all samples. The correlation between all AAO dimensional properties like pores size, interpore distance, wall thickness, pore density, percentage of porosity and nanoporous oxide thickness were presented in a linear graph.
  • Publication
    Tool wear and surface evaluation in drilling fly ash geopolymer using HSS, HSS-Co, and HSS-TiN cutting tools
    ( 2021)
    Mohd Fathullah Ghazli@Ghazali
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Shayfull Zamree Abd. Rahim
    ;
    Joanna Gondro
    ;
    Paweł Pietrusiewicz
    ;
    Sebastian Garus
    ;
    Tomasz Stachowiak
    ;
    Andrei Victor Sandu
    ;
    Muhammad Faheem Mohd. Tahir
    ;
    Mehmet Erdi Korkmaz
    ;
    Mohamed Syazwan Osman
    This paper reports on the potential use of geopolymer in the drilling process, with respect to tool wear and surface roughness. The objectives of this research are to analyze the tool life of three different economy-grade drill bit uncoated; high-speed steel (HSS), HSS coated with TiN (HSS-TiN), and HSS-cobalt (HSS-Co) in the drilling of geopolymer and to investigate the effect of spindle speed towards the tool life and surface roughness. It was found that, based on the range of parameters set in this experiment, the spindle speed is directly proportional to the tool wear and inversely proportional to surface roughness. It was also observed that HSS-Co produced the lowest value of surface roughness compared to HSS-TiN and uncoated HSS and therefore is the most favorable tool to be used for drilling the material. For HSS, HSS coated with TiN, and HSS-Co, only the drilling with the spindle speed of 100 rpm was able to drill 15 holes without surpassing the maximum tool wear of 0.10 mm. HSS-Co exhibits the greatest tool life by showing the lowest value of flank wear and produce a better surface finish to the sample by a low value of surface roughness value (Ra). This finding explains that geopolymer is possible to be drilled, and therefore, ranges of cutting tools and parameters suggested can be a guideline for researchers and manufacturers to drill geopolymer for further applications
      2  11
  • Publication
    Interaction of Geopolymer Filler and Alkali Molarity Concentration towards the Fire Properties of Glass-Reinforced Epoxy Composites Fabricated Using Filament Winding Technique
    ( 2022-09-01)
    Mohammad Firdaus Abu Hashim
    ;
    Meor Ahmad Faris Meor Ahmad Tajudin
    ;
    Mydin M.A.O.
    ;
    Che Mohd Ruzaidi Ghazali
    ;
    Yusrina Mat Daud
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Farah Farhana Zainal
    ;
    Saloma
    ;
    Muhammad Faheem Mohd. Tahir
    ;
    Heah Cheng Yong
    ;
    Khorami M.
    This paper aims to find out the effect of different weight percentages of geopolymer filler in glass-reinforced epoxy pipe, and which can achieve the best mechanical properties and adhesion between high calcium pozzolanic-based geopolymer matrices. Different weight percentages and molarities of epoxy hardener resin and high calcium pozzolanic-based geopolymer were injected into the glass fiber. By manually winding filaments, composite samples were produced, and they were then allowed to cure at room temperature. To determine how well the geopolymer matrices adhere to the fiber reinforcement, the microstructure of the composites’ surfaces and perpendicular sections were examined. Maximum values of compressive strength and compressive modulus were 94.64 MPa and 2373.58 MPa, respectively, for the sample with a weight percentage of filler loading of 30 wt% for an alkali concentration of 12 M. This is a relatively wide range of geopolymer weight percentage of filler loading from 10 wt% to 40 wt%, at which we can obtain high compressive properties. By referring to microstructural analysis, adhesion, and interaction of the geopolymer matrix to glass fiber, it shows that the filler is well-dispersed and embedded at the fiber glass, and it was difficult to determine the differences within the range of optimal geopolymer filler content. By determining the optimum weight percent of 30 wt% of geopolymer filler and microstructural analysis, the maximum parameter has been achieved via analysis of high calcium pozzolanic-based geopolymer filler. Fire or elevated temperature represents one of the extreme ambient conditions that any structure may be exposed to during its service life. The heat resistance or thermal analysis between glass-reinforced epoxy (GRE) pipe and glass-reinforced epoxy pipe filled with high calcium pozzolanic-based geopolymer filler was studied by investigating burning tests on the samples, which shows that the addition of high calcium pozzolanic-based geopolymer filler results in a significant reduction of the melted epoxy.
      1
  • Publication
    Unconfined compressive strength of various types of pavement base material: a review
    (AIP Publishing, 2020)
    Liyana Ahmad Sofri
    ;
    Mohd Rosli Mohd Hasan
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Yue Yuan H.
    ;
    Acep Hidayat
    ;
    Muhammad Faheem Mohd. Tahir
    In the highway construction industry especially for pavement base material, cement treated material is a conventional method that had been applied. Other than that, there is various types of base can be used such as cement kiln dust, reclaimed asphalt pavement, fly ash, and mine tailings. The usage of this various material can improve the unconfined compressive strength (UCS) of the base it terms of the strength. It was found that the UCS is the important properties to indicate the durability of the base. This paper summarized the material and the result of various types of base materials.
      1  20
  • Publication
    Potential of new sustainable Green Geopolymer Metal Composite (GGMC) material as mould insert for Rapid Tooling (RT) in injection moulding process
    (MDPI, 2023)
    Allice Tan Mun Yin
    ;
    Shayfull Zamree Abd. Rahim
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Marcin Nabialek
    ;
    Abdellah El-hadj Abdellah
    ;
    Allan Rennie
    ;
    Aurel Mihail Titu
    ;
    Muhammad Faheem Mohd. Tahir
    The investigation of mould inserts in the injection moulding process using metal epoxy composite (MEC) with pure metal filler particles is gaining popularity among researchers. Therefore, to attain zero emissions, the idea of recycling metal waste from industries and workshops must be investigated (waste free) because metal recycling conserves natural resources while requiring less energy to manufacture new products than virgin raw materials would. The utilisation of metal scrap for rapid tooling (RT) in the injection moulding industry is a fascinating and potentially viable approach. On the other hand, epoxy that can endure high temperatures (>220 °C) is challenging to find and expensive. Meanwhile, industrial scrap from coal-fired power plants can be a precursor to creating geopolymer materials with desired physical and mechanical qualities for RT applications. One intriguing attribute of geopolymer is its ability to endure temperatures up to 1000 °C. Nonetheless, geopolymer has a higher compressive strength of 60–80 MPa (8700–11,600 psi) than epoxy (68.95 MPa) (10,000 psi). Aside from its low cost, geopolymer offers superior resilience to harsh environments and high compressive and flexural strength. This research aims to investigate the possibility of generating a new sustainable material by integrating several types of metals in green geopolymer metal composite (GGMC) mould inserts for RT in the injection moulding process. It is necessary to examine and investigate the optimal formulation of GGMC as mould inserts for RT in the injection moulding process. With less expensive and more ecologically friendly components, the GGMC is expected to be a superior choice as a mould insert for RT. This research substantially impacts environmental preservation, cost reduction, and maintaining and sustaining the metal waste management system. As a result of the lower cost of recycled metals, sectors such as mould-making and machining will profit the most.
      18  1
  • Publication
    Properties of Blended Alkaline System Geopolymer-A Review
    ( 2020-03-18)
    Ahmad Zaidi F.H.
    ;
    Romisuhani Ahmad
    ;
    Zarina Yahya
    ;
    Muhammad Faheem Mohd. Tahir
    ;
    Wan Mastura Wan Ibrahim
    ;
    Saufi A.S.
    Geopolymers are inorganic material that comprise of silicon(Si) and aluminium(Al) bonded by oxygen atom to form a polymer network. The binder material used for geopolymer such as fly ash and blast furnace are mostly the industrial waste or by-products containing high content of silica and aluminium which acted as precursor for geopolymerization. The raw material plays an important role in the formation of geopolymer for each material may result in different properties of geopolymer. To improve the performance of these binders, numerous studies have been focused on the production of mixes based on blends of reactive precursors. The blends usually involve a Ca-rich precursor such as granulated blast furnace slag (GGBS), and an aluminosilicate source such as metakaolin or low calcium fly ash, to promote the stable coexistence of calcium silicate hydrate (C-S-H) gels formed from the activation of the GGBS and the geopolymer gel (N-A-S-H) produced from the activation of the aluminosilicate. Thus, this paper is intended to review the properties of different type of mixes of blended alkaline system.
      1  27
  • Publication
    Structural and mechanical characterisation of cellulose nanofibers (CNF) from Pennisetum Purpureum reinforced with polylactic acid (PLA)
    ( 2021-10-25)
    Revati R.
    ;
    Anas W.A.W.M.A.
    ;
    Mohd Shukry Abdul Majid
    ;
    Mohd Ridzuan Mohd Jamir
    ;
    Muhammad Faheem Mohd. Tahir
    This study aims to develop a composite scaffold based on polylactic acid reinforced with cellulose nanofibers from Pennisetum purpureum (PLA/CNF). The composite scaffolds were prepared via solvent casting and particulate leaching technique; sodium chloride (NaCl) was used as the porogen material. The influence of CNF on PLA is investigated; scaffolds were fabricated with different content of CNF (5%, 10% and 15%). The prepared composite scaffold was characterised using porosity measurements, Fourier-transform infrared spectroscopy (FTIR) and the compression strength and modulus were also evaluated in this study. The PLA/CNF scaffolds were highly porous with porosity higher than 80%. It was also shown that the porosity had a slight decrease with increasing CNF contents due to the compact arrangement of CNF within the scaffolds. Compression strength and modulus also show an increase in value as the CNF content increases. The results also show that introducing CNF to the PLA matrix can be considered beneficial for cartilage regeneration, cell attachment, and extracellular matrix (ECM) production.
      2  22
  • Publication
    Mechanical performance, microstructure, and porosity evolution of fly ash geopolymer after ten years of curing age
    ( 2023)
    Ikmal Hakem A. Aziz
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Rafiza Abd Razak
    ;
    Zarina Yahya
    ;
    Mohd Arif Anuar Mohd Salleh
    ;
    Jitrin Chaiprapa
    ;
    Catleya Rojviriya
    ;
    Petrica Vizureanu
    ;
    Andrei Victor Sandu
    ;
    Muhammad Faheem Mohd. Tahir
    ;
    Alida Abdullah
    ;
    Liyana Jamaludin
    This paper elucidates the mechanical performance, microstructure, and porosity evolution of fly ash geopolymer after 10 years of curing age. Given their wide range of applications, understanding the microstructure of geopolymers is critical for their long-term use. The outcome of fly ash geopolymer on mechanical performance and microstructural characteristics was compared between 28 days of curing (FA28D) and after 10 years of curing age (FA10Y) at similar mixing designs. The results of this work reveal that the FA10Y has a beneficial effect on strength development and denser microstructure compared to FA28D. The total porosity of FA10Y was also lower than FA28D due to the anorthite formation resulting in the compacted matrix. After 10 years of curing age, the 3D pore distribution showed a considerable decrease in the range of 5–30 µm with the formation of isolated and intergranular holes.
      19  1
  • Publication
    Physical and mechanical studies of kaolin-based geopolymer masonry brick
    ( 2015)
    Muhammad Faheem Mohd. Tahir
    A brick is mainly applied as a building material in construction of walls. Conventional construction bricks are usually made from Portland cement, clay and sand, which are mixed and molded in various method and need to be dried and burned with the temperature range between 900 to 1200 degree centigrade. The drying and firing process takes 2 to 4 days to be done. Other than that, the production of Portland cement consume high energy and can emit 1 to 1.2 ton of carbon dioxide (CO2) for every 1 ton of Portland cement product. Nowadays, a novel family of building materials which is geopolymer cement has seen a great development around the world. It is caused by the environmental issues that pressured the industries to manufacture a products and materials that are more environmental friendly. The aim of this research was to produce a product that would provide an alternative to the conventional bricks with a good properties by utilizing a geopolymer material which is kaolin, reduce the pollution of environment by replacing the usage of Portland cement in brick making industry, and produce effectively usable product by enhance the properties of ordinary product. This study has been conducted to produce kaolin-based geopolymer bricks by means of pressure forming without firing procedure and low energy consumptions.
      1  30