UPM Institutional Repository

Effects of sintering temperature variation on synthesis of glass-ceramic phosphor using rice husk ash as silica source


Citation

Abdul Wahab, Rabiatul Adawiyah and Mohd Zaid, Mohd Hafiz and Ab Aziz, Sidek and Matori, Khamirul Amin and Yap, Wing Fen and Yaakob, Yazid (2020) Effects of sintering temperature variation on synthesis of glass-ceramic phosphor using rice husk ash as silica source. Materials, 13 (23). pp. 1-14. ISSN 1996-1944

Abstract

In this study, the authors attempted to propose the very first study on fabrication and characterization of zinc-boro-silicate (ZBS) glass-ceramics derived from the ternary zinc-boro-silicate (ZnO)0.65(B2O3)0.15(RHA)0.2 glass system through a conventional melt-quenching method by incorporating rice husk ash (RHA) as the silica (SiO2) source, followed by a sintering process. Optimization of sintering condition has densified the sintered samples while embedded beta willemite (β-Zn2SiO4) and alpha willemite (α-Zn2SiO4) were proven in X-ray diffraction (XRD) analysis. Field emission scanning electron microscopy (FESEM) has shown the distribution of willemite crystals in rhombohedral shape crystals and successfully form closely-packed grains due to intense crystallization. The photoluminescence (PL) spectra of all sintered ZBS glasses presented various emission peaks at 425, 463, 487, 531, and 643 nm corresponded to violet, blue, green, and red emission, respectively. The correlation between the densification, phase transformation, microstructure, and photoluminescence of Zn2SiO4 glass-ceramic phosphor is discussed in detail.


Download File

[img] Text (Abstract)
ABSTRACT.pdf

Download (84kB)

Additional Metadata

Item Type: Article
Divisions: Faculty of Science
Institute of Advanced Technology
DOI Number: https://doi.org/10.3390/ma13235413
Publisher: Multidisciplinary Digital Publishing Institute
Keywords: Rice husk ash; Zinc-boro-silicate; Willemite; Structural; Luminescence
Depositing User: Ms. Nuraida Ibrahim
Date Deposited: 03 Nov 2021 06:23
Last Modified: 03 Nov 2021 06:23
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3390/ma13235413
URI: http://psasir.upm.edu.my/id/eprint/88729
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item