Browsing Banjuraizah Johar, Dr. by Author "banjuraizah@unimap.edu.my"
Now showing items 1-7 of 7
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Characterization and phase evolution of cordierite based glass synthesis from pure oxide and minerals
Banjuraizah, Johar; Hasmaliza, Mohamad; Zainal Ariffin, Ahmad (Trans Tech Publications, Switzerland, 2011)α Cordierite is very important phase in MgO-Al2O 3-SiO2 system because of their very outstanding thermal, chemical and electrical properties. In this presents study non-stoichiometry cordierite (MgO:Al2O3:SiO2 = 3:1.5:5) ... -
Effect of excess mgo mole ratio in a stoichiometric cordierite (2MgO·2Al2O3·5SiO 2) composition on the phase transformation and crystallization behavior of magnesium aluminum silicate phases
Banjuraizah, Johar; Hasmaliza, Mohamad; Zainal Arifin, Ahmad (The American Ceramic Society, 2011-05)The effect of excess MgO, 2.0-4.0 mol ratios on the crystallization behavior and purity of Iμ-cordierite was investigated using X-ray diffraction (XRD), differential thermal analyzer, and TGA. Quantitative XRD, the Rietveld ... -
Effect of impurities content from minerals on phase transformation, densification and crystallization of α-cordierite glass-ceramic
Banjuraizah, Johar; Hasmaliza, Mohamad; Zainal Arifin, Ahmad (Elsevier B.V., 2011-07-14)α-Cordierite glass-ceramic was produced through crystallization of glass compacts made of milled glass frits. A comparative investigation between two different initial raw materials to synthesize α-cordierite glass-ceramic ... -
The effect of ZnO addition on the phase transformation, microstructure, and ionic conductivity of 8YSZ ceramics
Banjuraizah, Johar; Zabar, Y. (EDP Sciences, 2016)In this paper the effect of zinc oxide (ZnO) addition on the phase transformation and ionic conductivity of 8 mol % Yttria-stabilised Zirconia (8YSZ) is investigated. Pure 8YSZ and ZnO doped YSZ ceramics are prepared using ... -
Fe-doped 8YSZ at different composition for solid electrolyte in solid oxide fuel cell
Banjuraizah, Johar; Zaili, N. A. (EDP Sciences, 2016)Pure 8 mol% yttria stabilized zirconia (YSZ) and Fe-doped (1 mol%, 2 mol% and 3 mol%) YSZ electrolyte were prepared and sintered at 1550°C. Transition metal oxide is added into YSZ as sintering aided has a function to ... -
Microstructure, Crystal structure and ionic conductivity of 3 mol % (Fe, Mn, Co, Zn) doped 8YSZ
Z. A., Ahmad; Banjuraizah, Johar; Tinesha, Selvaraj; Khor, Shing Fhan; Kok, E. K. (EDP Sciences, 2016)Effect of 3 mol% of transition elements doped 8YSZ such as YSZZn, YSZFe, YSZCo and YSZMn on the ionic conductivity. SOFCs mostly operate at higher temperature. By substitute with dopants, it can reduce the operating ... -
Synthesis and Characterization of Stabilized Zirconia Toughened Alumina (ZTA) Doped Niobium Pentoxide (Nb2O5)
Banjuraizah, Johar; Zul Azhar, Zahid Jamal; Ahmad, Z. A. (EDP Sciences, 2016)The main target of this research is to study the mechanical properties of the Nb2O5 doped with alumina-zirconia composites. Pellets form samples of ZTA (5YSZ) doped niobium pentoxide in varied amount of 0 wt%, 0.3 wt%, 0.5 ...