Browsing School of Materials Engineering (Articles) by Author "Banjuraizah, Johar"
Now showing items 1-11 of 11
-
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) ... -
Crystal structure of single phase and low sintering temperature of α-cordierite synthesized from talc and kaolin
Banjuraizah, Johar; Hasmaliza, Mohamad; Zainal Arifin, Ahmad (Elsevier B.V., 2009-08)Cordierite body with the formulation of 2.8MgO·1.5Al2O3·5SiO2 was prepared from talc and kaolin as the basic raw materials. Following glass crystallization technique the glass powder was successfully heat treated at 900 ... -
Densification and crystallization of nonstoichiometric cordierite glass with excess MgO synthesized from kaolin and talc
Banjuraizah, Johar; Hasmaliza, Mohamad; Zainal Arifin, Ahmad. (The American Ceramic Society, 2011-03)Densification and crystallization behaviors of nonstoichiometric cordierite synthesized from minerals through the glass route are reported in this paper. DTA of glass powder was conducted under isothermal and nonisothermal ... -
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 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 Ariffin, 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 ... -
Effect of melting temperatures on the crystallization and densification of 2.8MgO•1.5Al2O3•5SiO2 glass-ceramic synthesized from mainly talc and kaolin
Banjuraizah, Johar; Hasmaliza, Mohamad; Zainal Ariffin, Ahmad (Elsevier B. V., 2010-02-03)Single phase α-cordierite with low sintering temperature was produced from 2.8MgO·1.5Al2O3·5SiO2 chemical formulation using mainly talc and kaolin. The effect of melting temperature to the densification, crystallization ... -
Rietveld quantitative phase analysis of non-stoichiometric cordierite synthesised from mainly talc and kaolin: Effect of sintering temperature
Banjuraizah, Johar; Hasmaliza, Mohamad; Zainal Ariffin, Ahmad (Trans Tech Publications, Switzerland., 2011)Indialite or α-cordierite was synthesized by glass crystallization method using mainly talc and kaolin and with small amount of MgO, Al 2O3, SiO2 to compensate the chemical formulation of non-stoihiometric compositions of ... -
Synthesis and characterization of xMgO-1.5Al2O3-5SiO2 (x = 2.6-3.0) system using mainly talc and kaolin through the glass route
Banjuraizah, Johar; Hasmaliza, Mohamad; Zainal Arifin, Ahmad (Elsevier B.V., 2011-10-03)Three non-stoichiometric cordierite with compositions of xMgO-1.5Al2O3-5SiO2 (x = 2.6-3.0 mol) were synthesized using mainly talc and kaolin through the glass route. The densification and crystallization behaviors of these ... -
Synthesis and characterization of xMgO-1.5Al2O3-5SiO2 (x = 2.6-3.0) system using mainly talc and kaolin through the glass route
Banjuraizah, Johar; Hasmaliza, Mohamad; Zainal Ariffin, Ahmad (Elsevier B.V., 2011-10-03)Three non-stoichiometric cordierite with compositions of xMgO-1.5Al2O3-5SiO2 (x = 2.6-3.0 mol) were synthesized using mainly talc and kaolin through the glass route. The densification and crystallization behaviors of these ... -
Thermal expansion coefficient and dielectric properties of non-stoichiometric cordierite compositions with excess MgO mole ratio synthesized from mainly kaolin and talc by the glass crystallization method
Banjuraizah, Johar; Hasmaliza, Mohamad; Zainal Arifin, Ahmad (Elsevier B. V., 2010-04-02)α-Cordierite phase in non-stoichiometric cordierite formulations was synthesized using mainly kaolin and talc, without sintering aids, via the glass crystallization route. MgO mole ratios in the formulations were varied ...