Faizul Che Pa
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Preferred name
Faizul Che Pa
Official Name
Faizul, Che Pa
Alternative Name
Che Pa, Faizul
Faizul, C. P.
Main Affiliation
Scopus Author ID
55561986800
Researcher ID
AGP-6391-2022

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  • Publication
    Phase transformation of Kaolin-Ground Granulated Blast Furnace Slag from geopolymerization to sintering process
    ( 2021)
    Noorina Hidayu Jamil
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Faizul Che Pa
    ;
    Mohamad Hasmaliza
    ;
    Wan Mohd Arif W Ibrahim
    ;
    Ikmal Hakem A. Aziz
    ;
    Bartłomiej Jeż
    ;
    Marcin Nabiałek
    The main objective of this research was to investigate the influence of curing temperature on the phase transformation, mechanical properties, and microstructure of the as-cured and sintered kaolin-ground granulated blast furnace slag (GGBS) geopolymer. The curing temperature was varied, giving four different conditions; namely: Room temperature, 40, 60, and 80 °C. The kaolin-GGBS geopolymer was prepared, with a mixture of NaOH (8 M) and sodium silicate. The samples were cured for 14 days and sintered afterwards using the same sintering profile for all of the samples. The sintered kaolin-GGBS geopolymer that underwent the curing process at the temperature of 60 °C featured the highest strength value: 8.90 MPa, and a densified microstructure, compared with the other samples. The contribution of the Na2O in the geopolymerization process was as a self-fluxing agent for the production of the geopolymer ceramic at low temperatures.
  • Publication
    Influences of SiO2, Al2O3, CaO and MgO in phase transformation of sintered kaolin-ground granulated blast furnace slag geopolymer
    ( 2020-01-01)
    Jamil N.H.
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Faizul Che Pa
    ;
    Mohamad H.
    ;
    Wan Mohd Arif W Ibrahim
    ;
    Chaiprapa J.
    Kaolin has an excellent structure formed via a wide range of firing temperature. The correlation between the mineralogy and reactivity of individual elements is extremely complex in a sintered geopolymer material. The main objective of this work is to elucidate the influence of the chemical composition of the raw materials used post-sintering on the kaolin-ground granulated blast furnace slag (GGBS) geopolymer. The samples were cured at room temperature for 5 days before being sintered. The ratio of solid-to-liquid were 1:1, 1.5:1, and 2:1. The addition of the GGBS to the kaolin geopolymer slurry did not only hasten the hardening process during geopolymerization, the presence of SiO2, Al2O3, CaO, and MgO in GGBS had accelerated the formation of nepheline, gehlenite, akermanite, and albite phase after sintering based on the result from x-ray diffraction and fourier-transform infrared spectroscopy On top of the phase transformation, a high ratio of solid-to-liquid (SL 2) had improved the pore distribution from irregular size to well defined formation and increased the densification of the sintered materials. Elemental distribution from micro-XRF investigation prove the high concentration of Ca in localized area and uniformly distribution of Si aligned with the phase of akermanite in SL 2. The main chemical composition of kaolin and GGBS which are SiO2, Al2O3, CaO and MgO had contributed in phase transformation of sintered kaolin-GGBS geopolymer.
  • Publication
    Phase transformation of Kaolin-ground granulated blast furnace slag from geopolymerization to sintering process
    ( 2021-03-01)
    Noorina Hidayu Jamil
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Faizul Che Pa
    ;
    Hasmaliza M.
    ;
    Wan Mohd Arif W Ibrahim
    ;
    Aziz I.H.A.
    ;
    Jeż B.
    ;
    Nabiałek M.
    The main objective of this research was to investigate the influence of curing temperature on the phase transformation, mechanical properties, and microstructure of the as-cured and sintered kaolin-ground granulated blast furnace slag (GGBS) geopolymer. The curing temperature was varied, giving four different conditions; namely: Room temperature, 40, 60, and 80â—¦ C. The kaolin-GGBS geopolymer was prepared, with a mixture of NaOH (8 M) and sodium silicate. The samples were cured for 14 days and sintered afterwards using the same sintering profile for all of the samples. The sintered kaolin-GGBS geopolymer that underwent the curing process at the temperature of 60â—¦ C featured the highest strength value: 8.90 MPa, and a densified microstructure, compared with the other samples. The contribution of the Na2 O in the geopolymerization process was as a self-fluxing agent for the production of the geopolymer ceramic at low temperatures.
      2
  • Publication
    Asas logam
    ( 2011)
    Faizul Che Pa
    ;
    Ruhiyuddin Mohd Zaki
    ;
    Siti Hawa Mohamed Salleh
    ;
    Farah Farhana Zainal
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Nurfazlin Abu Hassan
    Buku Asas Logam diterbitkan khusus untuk membimbing dan memberi panduan kepada para pelajar yang mengikuti pengajian Kejuruteraan Bahan terutamanya dalam bidang Metalurgi. Buku ini menggabungkan aspek teori dan praktikal yang wujud dalam keseluruhan pemprosesan logam. Secara keseluruhannya buku ini membolehkan pembaca memahami teori dan mengaplikasikan kejuruteraan Metalurgi di alam pekerjaan dan kehidupan harian.
      13  135
  • Publication
    Self-Fluxing mechanism in geopolymerization for Low-Sintering temperature of ceramic
    ( 2021)
    Noorina Hidayu Jamil
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Faizul Che Pa
    ;
    Hasmaliza Mohamad
    ;
    Wan Mohd Arif W Ibrahim
    ;
    Penphitcha Amonpattaratkit
    ;
    Joanna Gondro
    ;
    Wojciech Sochacki
    ;
    Norfadhilah Ibrahim
    Kaolin, theoretically known as having low reactivity during geopolymerization, was used as a source of aluminosilicate materials in this study. Due to this concern, it is challenging to directly produce kaolin geopolymers without pre-treatment. The addition of ground granulated blast furnace slag (GGBS) accelerated the geopolymerization process. Kaolin–GGBS geopolymer ceramic was prepared at a low sintering temperature due to the reaction of the chemical composition during the initial stage of geopolymerization. The objective of this work was to study the influence of the chemical composition towards sintering temperature of sintered kaolin–GGBS geopolymer. Kaolin–GGBS geopolymer was prepared with a ratio of solid to liquid 2:1 and cured at 60 °C for 14 days. The cured geopolymer was sintered at different temperatures: 800, 900, 1000, and 1100 °C. Sintering at 900 °C resulted in the highest compressive strength due to the formation of densified microstructure, while higher sintering temperature led to the formation of interconnected pores. The difference in the X-ray absorption near edge structure (XANES) spectra was related to the phases obtained from the X-ray diffraction analysis, such as akermanite and anothite. Thermal analysis indicated the stability of sintered kaolin–GGBS geopolymer when exposed to 1100 °C, proving that kaolin can be directly used without heat treatment in geopolymers. The geopolymerization process facilitates the stability of cured samples when directly sintered, as well as plays a significant role as a self-fluxing agent to reduce the sintering temperature when producing sintered kaolin–GGBS geopolymers.
      2  8