Effects of Na2O additions on the thermal and optical properties of BaO-ZnO-B2O3-SiO2 glass powders prepared by spray pyrolysis

Dae Soo Jung, Seung Kwon Hong, Hye Young Koo, Yang Dam Eo, Man Jong Lee, Yun Chan Kang

Research output: Contribution to journalArticle

Abstract

Fine-sized BaO-ZnO-B2O3-SiO2 (BZBS) glass powders doped with various amount of Na2O were directly prepared by spray pyrolysis at a temperature of 1400°C. The BZBS glass powders prepared with low amounts Of Na2O below 5.7wt.% of the product had a glass structure with amorphous phases. The glass transition temperature (T g) of the BZBS glass powders was changed from 517.3 to 468 °C when the amount of Na2O added to the product was changed from O to 5.7 wt.%. Melting of the glass powders with 1.9 wt.% Na2O occurred at a temperature of 56O °C. On the other hand, melting of the glass powders with 3.8 and 5.7 wt.% Na2O occurred at temperatures of 540 and 520 °C, respectively. The dielectric layers formed from the glass powders with an amount of Na2O added below 5.7 wt.% of the product had high transparencies, above 80%, at a firing temperature of 580 °C. The addition of Na2O to the glass powders improved the transparencies of the dielectric layers at low firing temperatures.

Original languageEnglish
Pages (from-to)152-157
Number of pages6
JournalJournal of Ceramic Processing Research
Volume10
Issue number2
Publication statusPublished - 2009 Jul 10
Externally publishedYes

Fingerprint

Spray pyrolysis
Powders
Thermodynamic properties
Optical properties
Glass
Transparency
Melting
Temperature
sodium oxide
boron oxide

Keywords

  • Gas phase reaction
  • Glass powder
  • Spray pyrolysis

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Effects of Na2O additions on the thermal and optical properties of BaO-ZnO-B2O3-SiO2 glass powders prepared by spray pyrolysis. / Jung, Dae Soo; Hong, Seung Kwon; Koo, Hye Young; Eo, Yang Dam; Lee, Man Jong; Kang, Yun Chan.

In: Journal of Ceramic Processing Research, Vol. 10, No. 2, 10.07.2009, p. 152-157.

Research output: Contribution to journalArticle

Jung, Dae Soo ; Hong, Seung Kwon ; Koo, Hye Young ; Eo, Yang Dam ; Lee, Man Jong ; Kang, Yun Chan. / Effects of Na2O additions on the thermal and optical properties of BaO-ZnO-B2O3-SiO2 glass powders prepared by spray pyrolysis. In: Journal of Ceramic Processing Research. 2009 ; Vol. 10, No. 2. pp. 152-157.
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