Bubble Formation in Basalt-like Melts

Martin Jensen, Ralf Keding, Yuanzheng Yue

Research output: Contribution to journalJournal articleResearchpeer-review

3 Citations (Scopus)

Abstract

The effect of the melting temperature on bubble size and bubble formation in an iron bearing calcium aluminosilicate melt is studied by means of in-depth images acquired by optical microscopy. The bubble size distribution and the total bubble
volume are determined by counting the number of bubbles and their diameter. The variation in melting temperature has little influence on the overall bubble volume. However, the size distribution of the bubbles varies with the melting temperature. When the melt is slowly cooled, the bubble volume increases, implying decreased solubility of the gaseous species. Mass spectroscopy analysis of gases liberated during heating of the glass reveals that small bubbles contain predominantly CH4, CO and CO2, whereas large bubbles bear N2, SO2 and H2S. The methodology utilised in this work can, besides mapping the bubbles in a glass, be applied to shed light on the sources of bubble formation.
Original languageEnglish
JournalEuropean Journal of Glass Science and Technology Part A
Volume52
Issue number4
Pages (from-to)127-135
Number of pages9
ISSN1753-3546
Publication statusPublished - 2011

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