Volume 2 Number 2 (Mar. 2012)
Home > Archive > 2012 > Volume 2 Number 2 (Mar. 2012) >
IJAPM 2012 Vol.2(2): 089-092 ISSN:2010-362X
DOI: 10.7763/IJAPM.2012.V2.60

Structure and Crystallization of Borate-Based Glasses for Machinable Material Applications

Pat Sooksaen

Abstract—This study investigated bulk crystallization at pre-set temperatures of B2O 3-SiO2-Al2O 3-BaO-MgO glass system. Heat treatment at pre-set temperature was carried out between 900 and 1200 ° C on clear glasses to form non-transparent glass-ceramics. Structure of glasses were studied by Fourier transform infrared spectroscopy, phase evolution in the bulk crystallized samples was studied by x-ray diffraction, microstructures were observed by scanning electron microscope and micro-hardness was measured by Vickers method. Aluminum borate whiskers/rods were in the nano to micro sized regime and dispersed randomly within the remaining glass matrix. Whiskers had different sizes and morphologies depending on the heat treatment temperature. Increasing heat treatment temperature led to an increase in crystal size, length and the formation of hollow tubes. The surface hardness decreased when the morphology changed from fine rods into hollow tubes. The synthesized glass-ceramics in this study can be applied as machinable materials in various applications because their microstructures can resist microcracking.

Index Terms—Glass, crystallization, microstructure, whiskers, hardness.

P. Sooksaen is with the Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University. Nakhon Pathom 73000 Thailand and Center of Excellence for Petroleum, Petrochemicals and Advanced Materials, Chulalongkorn University, Bangkok 10330 Thailand (e-mail: pat@su.ac.th).


Cite: Pat Sooksaen, "Structure and Crystallization of Borate-Based Glasses for Machinable Material Applications," International Journal of Applied Physics and Mathematics  vol. 2, no. 2, pp. 089-092, 2012.

General Information

ISSN: 2010-362X (Online)
Abbreviated Title: Int. J. Appl. Phys. Math.
Frequency: Quarterly
DOI: 10.17706/IJAPM
Editor-in-Chief: Prof. Haydar Akca 
Abstracting/ Indexing: INSPEC(IET), CNKI, Google Scholar, EBSCO, Chemical Abstracts Services (CAS), etc.
E-mail: ijapm@iap.org
  • Mar 27, 2024 News!

    IJAPM Vol 14, No 1 has been published online   [Click]

  • Jan 02, 2024 News!

    IJAPM will adopt Article-by-Article Work Flow For the Quarterly journal, each issue will be released at the end of the issue month

  • Jan 02, 2024 News!

    The papers published in Vol 13, No 4 has received dois from Crossref

  • Oct 09, 2023 News!

    IJAPM Vol 13, No 4 has been published with online version   [Click]

  • Oct 09, 2023 News!

    The papers published in Vol 13, No 3 has received dois from Crossref

  • Read more>>