Open AccessPhase Analysis of Bio-Based Derived Tricalcium Disilicate From 2CaO:1SiO2 By X-ray Diffraction
Author(s) -
Siti Nur Hazwani Yunus,
Khor Shing Fhan,
Johar Banjuraizah,
Nur Maizatul Shima Adzali,
Nur Hazlinda Jakfar,
E. M. Cheng
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2129/1/012054
Subject(s) - sintering , materials science , crystallite , calcination , mineralogy , chemical engineering , calcium silicate , x ray crystallography , phase (matter) , powder diffraction , silicate , stoichiometry , rietveld refinement , diffraction , crystallography , crystal structure , composite material , metallurgy , chemistry , biochemistry , physics , optics , organic chemistry , engineering , catalysis
In this paper, tricalcium disilicate was formed from dicalcium silicate compound powder, synthesised via a mechanochemical technique using a stoichiometric 2CaO:1SiO 2 . Compound CaO and SiO 2 were derived from the bio-waste of eggshell and rice husk at the calcination temperature of 900°C and 800°C, respectively. The dicalcium disilicate powder was sintered for 2 hours at different temperatures ranging from 1150°C to 1350°C. Using X-ray diffraction with Rietveld analysis, it was found that the amount of tricalcium disilicate with monoclinic (beta) crystal structure increases on sintering temperature at the expense of dicalcium silicate. The complete formation of single-phase tricalcium disilicate began at a sintering temperature of 1300°C. The effect of sintering temperatures on the crystallisation and phase transition of dicalcium silicate is reported. The size of crystallites depends on the sintering temperature. The finding of this study rebound to the benefit of society by reducing the risk-off pollution cause by accessive redundant bio-waste eggshell and rice husk and also reduced the amount of CaO and SiO 2 used in the fabrication of Ca 3 Si 2 O 7 .