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Title: Cordierite Glass-Ceramics for Dielectric Materials

Abstract

The objective of this project is to examine the potential of using Malaysian silica sand deposit as SiO2 raw material in producing cordierite glass-ceramics (2MgO-2Al2O3-5SiO2) for dielectric materials. Upgraded silica sands from Terengganu and ex-mining land in Perak were used in the test-works. The glass batch of the present work has a composition of 45.00% SiO2, 24.00% Al2O3, 15.00% MgO and 8.50% TiO2 as nucleation agent. From the differential thermal analysis results, the crystallization temperature was found to start around 900 deg. C. The glass samples were heat-treated at 900 deg. C and 1000 deg. C. The X-ray diffraction analysis (XRD) results showed glass-ceramics from Terengganu samples containing mainly cordierite and minor {beta}-quartz crystals. However, glass-ceramics from ex-mining land samples contained mainly {alpha}-quartz and minor cordierite crystals. Glass-ceramics with different crystal phases exhibit different mechanical, dielectric and thermal properties. Based on the test works, both silica sand deposits, can be potentially used to produce dielectric material component.

Authors:
; ;  [1]
  1. Minerals Research Centre, Department of Minerals and Geoscience Malaysia, Jalan Sultan Azlan Shah, 31400 Ipoh (Malaysia)
Publication Date:
OSTI Identifier:
21061696
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 909; Journal Issue: 1; Conference: ICSSST 2006: 2. international conference on solid state science and technology 2006, Kuala Terengganu (Malaysia), 4-6 Sep 2006; Other Information: DOI: 10.1063/1.2739837; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERAMICS; CRYSTAL STRUCTURE; CRYSTALLIZATION; CRYSTALS; DIELECTRIC PROPERTIES; DIFFERENTIAL THERMAL ANALYSIS; GLASS; HEAT TREATMENTS; MAGNESIUM OXIDES; NUCLEATION; QUARTZ; SILICA; THERMODYNAMIC PROPERTIES; TITANIUM OXIDES; X-RAY DIFFRACTION

Citation Formats

Siti Mazatul Azwa Saiyed Mohd Nurddin, Selamat, Malek, and Ismail, Abdullah. Cordierite Glass-Ceramics for Dielectric Materials. United States: N. p., 2007. Web. doi:10.1063/1.2739837.
Siti Mazatul Azwa Saiyed Mohd Nurddin, Selamat, Malek, & Ismail, Abdullah. Cordierite Glass-Ceramics for Dielectric Materials. United States. doi:10.1063/1.2739837.
Siti Mazatul Azwa Saiyed Mohd Nurddin, Selamat, Malek, and Ismail, Abdullah. Wed . "Cordierite Glass-Ceramics for Dielectric Materials". United States. doi:10.1063/1.2739837.
@article{osti_21061696,
title = {Cordierite Glass-Ceramics for Dielectric Materials},
author = {Siti Mazatul Azwa Saiyed Mohd Nurddin and Selamat, Malek and Ismail, Abdullah},
abstractNote = {The objective of this project is to examine the potential of using Malaysian silica sand deposit as SiO2 raw material in producing cordierite glass-ceramics (2MgO-2Al2O3-5SiO2) for dielectric materials. Upgraded silica sands from Terengganu and ex-mining land in Perak were used in the test-works. The glass batch of the present work has a composition of 45.00% SiO2, 24.00% Al2O3, 15.00% MgO and 8.50% TiO2 as nucleation agent. From the differential thermal analysis results, the crystallization temperature was found to start around 900 deg. C. The glass samples were heat-treated at 900 deg. C and 1000 deg. C. The X-ray diffraction analysis (XRD) results showed glass-ceramics from Terengganu samples containing mainly cordierite and minor {beta}-quartz crystals. However, glass-ceramics from ex-mining land samples contained mainly {alpha}-quartz and minor cordierite crystals. Glass-ceramics with different crystal phases exhibit different mechanical, dielectric and thermal properties. Based on the test works, both silica sand deposits, can be potentially used to produce dielectric material component.},
doi = {10.1063/1.2739837},
journal = {AIP Conference Proceedings},
number = 1,
volume = 909,
place = {United States},
year = {Wed May 09 00:00:00 EDT 2007},
month = {Wed May 09 00:00:00 EDT 2007}
}