Now showing items 253-272 of 279

    • Study on radioactivity components, water quality and microstructure characteristic of volcano ash as geopolymer artificial aggregate 

      Rafiza, Abdul Razak; Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Khairul Nizar, Ismail, Assoc. Prof. Dr.; Sandu, Ion; Djwantoro, Hardjito, Dr.; Zarina, Yahya (SYSCOM 18, 2013-06)
      The assessments of radioactivity, water qualitytesting and microstructure characteristic of volcano ash have been examined. The measurement of the 226Ra, 232Th, 40K, and 238U were carried out using radioactive concentration ...
    • Study on refractory materials application using geopolymer processing 

      Mohd Mustafa Al-Bakri, Abdullah; Liyana, Jamaludin; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Mohamed, Bnhussain, Prof. Dr.; Che Mohd Ruzaidi, Ghazali, Prof. Madya; Rafiza, Abdul Razak; Mohd Izzat, Ahmad (American Scientific Publishers, 2013-01)
      Geopolymer is cementitious binders that do not require the presence of ordinary Portland cement (OPC). Class F fly ash with geopolymer formulations prepared with an alkaline activator (mixture of Na2SiO3 and NaOH solutions) ...
    • A study on relationship between porosity and compressive strength for geopolymer paste 

      Farah Farhana, Zainal; Kamarudin, Hussin, Brig. Jen. Dato' Prof. Dr.; Azmi, Rahmat, Prof.; Mohd Mustafa Al-Bakri, Abdullah (Trans Tech Publications, 2013-12)
      This paper presents a study on the relationship between porosity and compressive strength for geopolymer paste. In this research, geopolymer paste was made from fly ash class F based geopolymer mixed with alkaline activator; ...
    • Study on the geopolymer concrete properties reinforced with hooked steel fiber 

      Mohd Mustafa Al Bakri, Abdullah; Muhammad Faheem, Mohd Tahir; Meor Ahmad Faris, Meor Ahmad Tajudin; J. J. Ekaputri; R. Bayuaji; Nuranissa Azrin, Mohd Khatim (IOP Publishing Ltd, 2017-06)
      In this research, Class F fly ash and a mixture of alkaline activators and different amount of hooked steel fiber were used for preparing geopolymer concrete. In order to analyses the effect of hooked steel fiber on the ...
    • Sukan 8th IMT-GT Varsity Carnival 

      Mohd Mustafa Al Bakri, Abdullah (Kolej Universiti Kejuruteraan Utara Malaysia, 2005-09)
    • Surface characterization of new biomaterials 

      Minciuna, M G; Vizureanu, P; Mohd Mustafa Al Bakri, Abdullah; Achitei, D C; Istrate, B; Cimpoesu, R; Focsaneanu, S C (IOP Publishing Ltd, 2017-06)
      This paper presents the characterization of new alloys CoCrMoSi6, CoCrMoSi7, CoCrMoSi10, in terms of hardness determinations, fractographic analysis and surface analysis. The original version of the alloy was obtained by ...
    • Surface topographical modification of coronary stent: a review 

      Tan, C H; Noorhafiza, Muhammad; Mohd Mustafa Al Bakri, Abdullah (IOP Publishing Ltd, 2017-06)
      Driven by the urge of mediating the inflammatory response from coronary stent implant to improve patency rates of the current coronary stent, concern has been focusing on reducing the risk of in-stent restenosis and ...
    • Sustainable use of cassava plant waste (branches) as raw material for bio-composite development: Particleboard properties due to plant maturity 

      Farhah, Rahimi; Mazlan, Mohamed; Mohd Mustafa Al Bakri, Abdullah; Noorhafiza, Muhammad; Rozyanty, Rahman; Mohd Nazri, Omar; Mohamad Bashree, Abu Bakar; Mohammad Khairul Azhar, Abdul Razab; Zairi Ismael, Rizman (Asian Research Publishing Network (ARPN), 2016-05-10)
      This research is to study the sustainable use of Cassava Manihot Esculenta Crantz waste from branches parted as a raw material for bio-composite development. Bio-composite is component phase that derived from biological ...
    • Synthesis and characterization of fly ash based geopolymer ceramics: effect of NaOH concentration 

      Romisuhani, Ahmad; Wan Mastura, Wan Ibrahim; Mohd Mustafa Al Bakri, Abdullah; Sandu, Andrei Victor; Nurul Aida, Mohd Mortar; Noratikah, Hashim; Warid Wazien, Ahmad Zailani (IOP Publishing Ltd, 2020-02)
      Ceramic materials have demonstrated impressive performance under severe conditions in a wide number of areas including health, energy and environment, transportation and electronic applications. In order to meet the growing ...
    • Synthesis and characterization of TiO₂/SiO₂ thin film via SolGel method 

      Dewi Suriyani, Che Halin; Mohd Mustafa Al Bakri, Abdullah; Norsuria, Mahmed; S N A, Abdul Malek; Vizureanu, P; ‪Ayu Wazira, Azhari (IOP Publishing Ltd, 2017-06)
      TiO₂/SiO₂ thin films were prepared by sol-gel spin coating method. Structural, surface morphology and optical properties were investigated for different annealing temperatures at 300°C, 400°C and 500°C. X-ray diffraction ...
    • Synthesis and charactherization of TiO₂ doped SnO₂ thin film prepared by sol-gel method 

      Dewi Suriyani, Che Halin; Kamrosni, Abdul Razak; Azliza, Azani; Mohd Mustafa Al Bakri, Abdullah; Mohd Arif Anuar, Mohd Salleh; Norsuria, Mahmed; Nur Syahirah, Shafee; Muhammad Mahyiddin, Ramli; Ayu Wazira, Azhari; Chobpattana, Varistha (IOP Publishing Ltd, 2019-12)
      In this work, preparation of titanium dioxide doped with tin oxide, SnO₂/TiO₂ thin films deposited onto silicon wafer via sol-gel method. Different amount of SnO₂ was added (5 ml, 10ml and 15 ml) into parent solution. The ...
    • Synthesis of sodium silicate from rice husk ash as an activator to produce epoxy-geopolymer cement 

      L. Handayani; S. Aprilia; Abdullah; C. Rahmawati; Mohd Mustafa Al Bakri, Abdullah; Ikmal Hakem, Aziz; Emy Aizat, Azimi (IOP Publishing Ltd, 2021-03)
      Rice husk ash (RHA), a byproduct of the rice industry, is the primary source of amorphous silica for producing sodium silicate solutions to replace standard commercial sodium silicate in geopolymer mixture design. The ...
    • The tensile properties and morphology analysis of recycled mattress filled natural rubber compounds 

      Nik Noriman, Zulkepli, Dr.; Mohd Firdaus, Omar; Sam, Sung Ting, Dr.; N. P., Shamni; Lokman Hakim, Ibrahim; Mohd Mustafa Al Bakri, Abdullah (AENSI Publisher All rights reserved, 2013-10)
      The tensile properties and morphology analysis of Recycled Mattress (rMat) filled Standard Malaysian Rubber (SMR L) and Epoxidized Natural Rubber (ENR 50) was successfully studied. The both compounds were prepared by two ...
    • Thermal expansion behavior of the electroless copper coated Cu-SiCp composites fabricated via the conventional powder metallurgical technique 

      Azmi, Kamardin; Mohd Nazree, Derman, Dr.; Mohd Mustafa Al-Bakri, Abdullah; Sandu, A.V. (Trans Tech Publications, 2014-01)
      The introduction of the metal matrix composites as the advanced electronic packaging materials is highly anticipated because their thermal properties can be engineered to match those of semiconductors, ceramics substrates ...
    • Thermal properties of different recycled acrylonitrile-butadiene rubber glove (NBRr) size and its blend ratios on SBR/NBRr blends 

      Nik Noriman, Zulkepli, Dr.; Hanafi, Ismail; Mohd Arif Anuar, Mohd Salleh; Mohd Mustafa Al Bakri, Abdullah; Rosniza, Hamzah (Trans Tech Publications, 2013-09)
      The effects of SBR/NBRr blends on thermal properties of such thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC) were carried out. Results showed that by incorporating the smallest size NBRr ...
    • Thermal resistance variations of fly ash geopolymers: foaming responses 

      Heah, Cheng-Yong; Liew, Yun-Ming; Mohd Mustafa Al Bakri, Abdullah; Kamarudin, Hussin (Springer Nature Limited, 2017-03)
      This paper presents a comparative study of the characteristic of unfoamed and foamed geopolymers after exposure to elevated temperatures (200–800 °C). Unfoamed geopolymers were produced with Class F fly ash and sodium ...
    • Three dimensional simulation of thermal pad using nanomaterial, nano-silver in semiconductor and electronic component application 

      Mazlan, Mohamed; Rahim, Atan, Prof. Madya Dr.; Mohd Mustafa Al Bakri, Abdullah; Muhammad Iqbal, Ahmad; Mohd Huzaifah, Yusoff; Fathinul Najib, Ahmad Saad (Trans Tech Publications, 2013)
      Thermal pad is new technology in this world that been used in PLCC in order to reduce junction temperature to the minimum level in electronic components. In electronic industry, the electronic components that exceed 70°C ...
    • Tool wear and surface evaluation in drilling fly ash geopolymer using HSS, HSS-Co, and HSS-TiN cutting tools 

      Mohd Fathullah, Ghazali; Mohd Mustafa Al Bakri, Abdullah; Shayfull Zamree, Abd Rahim; Gondro, Joanna; Pietrusiewicz, Paweł; Garus, Sebastian; Stachowiak, Tomasz; Victor Sandu, Andrei; Muhammad Faheem, Mohd Tahir; Erdi Korkmaz, Mehmet; Mohamed Syazwan, Osman (MDPI AG, 2021-03-26)
      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 ...
    • UniMAP cemerlang di Kejohanan Sukan Persatuan Badan Berkanun Malaysia Ke-5 

      Mohd Mustafa Al Bakri, Abdullah (Universiti Malaysia Perlis, 2008-03)
    • UniMAP FT Johan Pesta Bola Merdeka Piala Dato Aziz Fadzil Sheikh Kadir 

      Mohd Mustafa Al Bakri, Abdullah (Universiti Malaysia Perlis, 2008-08)