Glass forming ability of calcium aluminosilicate melts

Mette Moesgaard, Yuanzheng Yue

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

113 Downloads (Pure)

Abstract

The glass forming ability (GFA) of two series of calcium aluminosilicate melts is studied by measuring their viscous behavior and crystallization tendency. The first series consists of five compositions on the joining line between the eutectic point of anorthite-wollastonite-tridymite and that of anorthite-wollastonite-gehlenite. The series includes the eutectic compositions as end members. The second series consists of five compositions on a line parallel to the joining line on the alumina rich side. In the present work, GFA is described in terms of glass stability, i.e., the ability of a glass to resist crystallization during reheating. In addition, the fragility index (m) is derived by fitting the viscosity data with the Avramov-Milchev equation. The results show that m is inversely proportional to the glass stability for the two series of melts, implying that m is an indirect measure of GFA. However, this proportionality is only valid for comparison of the glasses in the same series of compositions. The eutectic composition of anorthite-wollastonite-tridymite is found to exhibit the highest GFA of the melts under investigation.
Original languageEnglish
Title of host publicationProceeding of 4th Balkan Conference on Glass Science Technology and 16th Conference on Glass Science Technology
EditorsB. Samuneva, S. Bachvarov, I. Gutzow, Y. Dimitriev
Number of pages6
Volume1
Place of PublicationSofia
PublisherPublishing house “Camea Design” Ltd.
Publication date2011
Pages56-61
ISBN (Print)978-954-629-037-3
Publication statusPublished - 2011
EventFourth Balkan Conference on Glass Science and Technology, 16th Conference on Glass and Ceramics - Varna, Bulgaria
Duration: 27 Sep 20081 Oct 2008

Conference

ConferenceFourth Balkan Conference on Glass Science and Technology, 16th Conference on Glass and Ceramics
CountryBulgaria
CityVarna
Period27/09/200801/10/2008

Fingerprint Dive into the research topics of 'Glass forming ability of calcium aluminosilicate melts'. Together they form a unique fingerprint.

  • Cite this

    Moesgaard, M., & Yue, Y. (2011). Glass forming ability of calcium aluminosilicate melts. In B. Samuneva, S. Bachvarov, I. Gutzow, & Y. Dimitriev (Eds.), Proceeding of 4th Balkan Conference on Glass Science Technology and 16th Conference on Glass Science Technology (Vol. 1, pp. 56-61). Publishing house “Camea Design” Ltd..